What kind of car is e300?

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Mercedes-Benz E300 is a luxury car. The following is its related introduction:

In terms of appearance, the front face design of Mercedes-Benz E300 is the same as that of the imported version, with sharp lines of split high beam and low beam, and the overall effect is young and dynamic, completely washing away the image of "capital". The LED light group in the front of the car explains the word fashion more thoroughly. From the appearance, the new E-class extended edition of Mercedes-Benz has no change from the imported E-class, but some adjustments have been made for the China market in terms of body length, width and wheelbase. The body length of the domestic Mercedes-Benz E-Class extended version is 5012mm, the wheelbase is increased by 140mm, reaching 3014mm, and the body width remains unchanged.

In terms of interior, the interior of Mercedes-Benz E300 is dark gray, which looks younger. With brown seats, it feels very upscale. The center console focuses on the large-size GPS navigation screen, which is clear and easy to read. The middle part is the audio control button, which is convenient for the driver to operate. The lower part is the air conditioning control button, which is simple and convenient to operate.

As a luxury car, Mercedes-Benz E300 not only has a young and dynamic design in appearance, but also has exquisite interior, providing drivers with a comfortable driving experience. At the same time, the adjustment of its body size also makes it more suitable for the demand of China market. If you need to know more about Mercedes-Benz E300, you can go to Mercedes-Benz official website or a physical store to learn more about it.

Mid-Autumn National Day Super Long Holiday to "Xiaolong Game"

  Mid-Autumn Festival+National Day is about to begin. Have you planned where to play? Some people shuttle through the hutongs with yellow leaves in autumn and want to feel the fireworks of a city; Someone broke into northern Xinjiang and wanted to see the fleeting precious autumn colors of the grassland, but if you haven’t had time to make a travel plan, you can actually experience a happy long vacation in the city. A "Xiaolong Game" that integrates fun driving, grand prizes and happy experience must not be missed!

  It coincides with the opening of the international auto shows in Tianjin and Xi ‘an. During the two time periods from September 28th to October 4th (Tianjin) and October 1st to 7th (Xi ‘an), the Haval brand and its famous star model, Haval Xiaolong MAX, will bring well-designed experience subjects in the outfield of the two exhibitions, and there will be premium rewards for participation, which will bring to friends who love challenges, are eager to experience electric four-wheel drive driving and are bored to visit the exhibition.

  Seven fun ways to play, all-round electric four-wheel drive waiting for you.

  In this event, there are seven subject challenges, static and dynamic, and there are surprises in customs clearance. Users can win rich rewards by participating, and experience the advantages of Haval Xiaolong MAX in intelligent vehicle control, four-wheel drive control and super-large space in one stop.

  ① Top rushing on high slope: 60% slope challenge, in which the challenger drives the vehicle to 60% of the simulated slope, stops the engine after reaching the halfway stop line, and then starts the vehicle again to continue climbing to the top of the slope, which means the challenge is successful. Testing the driving skills of starting on a half-slope is also a good opportunity to experience Haval Xiaolong MAX’s steady start on a slope, which brings stronger grip and safety performance to daily passing through ice, rain and snow slopes.

  ② Blade Challenge: Have you ever heard of "blade overtaking" in stunt driving? In this 25-degree side slope challenge, the challenger needs to drive Haval Xiaolong MAX and use one-sided wheel to drive through the 25-degree side slope. This course mainly takes you to experience the professional chassis adjustment, front and rear independent suspension and higher strength of Haval Xiaolong MAX. It’s time to test your skills!

  (3) Walking on the flat ground: Sleeper road challenge, which simulates the bumpy road surface in daily driving. The challenger needs to drive the vehicle to the sleeper road, and the vehicle will start at zero speed. If it passes smoothly, it will be regarded as a success of the challenge. Fearless of bumps, experience the comfortable and calm driving experience brought by Haval Xiaolong MAX.

  ④ Multiple dilemmas: By simulating the comprehensive dilemma of SUV, challenge the comprehensive ability of Haval Xiaolong MAX to drive in potholes. Participants can experience Haval Xiaolong MAX’s Hi4 electric four-wheel drive, which explodes enough power to help you get out of trouble under the complex road environment in the suburbs.

  ⑤ Eye-catching: The challenger observes around the car body and accurately finds out how many induction probes Haval Xiaolong MAX has, so that it can pass the customs;

  ⑥ Keep your word: The challenger wakes up the intelligent voice system in the MAX cockpit of Haval Xiaolong, and releases 10 voice commands continuously and quickly. After the car system successfully recognizes and completes the operation, it passes through the customs;

  ⑦ "big" show: outdoor scene back row space experience, the challenger will put the Haval Xiaolong MAX seat flat and arrange the back row air cushion bed as required according to the guidelines, and pass the customs upon completion;

  In addition to the above links, this activity also brought the experience of family camping. Using Haval Xiaolong’s MAX 3.3kW external discharge function to connect electrical appliances, you can also taste drinks, punch in and take photos, and get the most special "tourist photos" in your circle of friends.

  As an all-round electric four-wheel drive new energy SUV, Haval Xiaolong MAX not only took the first ride on the new intelligent four-wheel drive electric hybrid technology Hi4 of Great Wall Motor, but also equipped with a new generation of Coffee OS smart cockpit and coffee smart driving that just completed OTA upgrade. Through millisecond-level response, intelligent voice interaction with one word and ten meanings, Hi4 electric four-wheel drive technology and wide interior size as a medium-sized SUV, it helps to challenge users to successfully complete a customs clearance experience, and the vehicle cost performance will be known after the test!

  Rich rewards, turning over the National Day file, challenging for good gifts.

  While completing the challenge, the government also brought rich rewards to friends in different degrees. After receiving VIP or SVIP cards from Harvard staff in the exhibition hall and completing the game in the field, you can get rich gifts customized by Harvard.

  In addition, this time Haval also made an unprecedented profit for car purchase. At present, ordering Haval Xiaolong MAX can enjoy the 0 yuan renewal plan, a limited purchase gift certificate from 299 yuan to 12,000 yuan, a cash expansion gift from 2,000 yuan to 8,000 yuan, and an online lottery of 10,000 yuan. Now, some subscribers have won a cash reward of 10,000 yuan, and buying a car during the activity is definitely full of value.

  This "Xiaolong Game" Haval National Electric Four-wheel Drive Talent Competition is a series of activities for more than two months, which will cover 100 cities across the country, including urban challenges in 26 cities and interactive challenges of prize-winning games in national distribution stores, rich gift awards and unprecedented interactive gameplay. Participating users will have the opportunity to be invited to participate in the year-end winter challenge finals, pay attention to the official news of Haval, and register in your city to start enjoying this "Xiaolong Game" carnival!

Star Road Eta Ursae Majoris in Anqing area is on sale, with the latest offer of 137,800! There are plenty of cars.

On the car home Anqing preferential promotion channel, preferential activities are being carried out. As an SUV model that has attracted much attention, the price of Starway Eta Ursae Majoris in Anqing has dropped to the lowest starting price of 137,800 yuan. This promotion can enjoy a maximum discount of 15,000 yuan, which provides excellent car purchase opportunities for the majority of riders. If you want to know more about the discount, you can click the "Check the car price" button in the quotation form to get a higher discount.

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Starway Eta Ursae Majoris is a stylish and dynamic SUV. The front face design of this car is very unique, with a large area of chrome decoration and sharp LED headlights, which makes the whole car look very delicate. The air intake grille adopts a hexagonal design, with smooth lines and three-dimensional body shape, which makes the whole car look more dynamic. Overall style, Starway Eta Ursae Majoris pays attention to fashion and sense of science and technology, and its body lines are smooth and atmospheric, and at the same time it combines a sense of modernity and futurity. The appearance design of this car system is very in line with the aesthetic needs of modern consumers for the appearance of the car, leaving a deep impression on people.

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The body size of Xingtu Eta Ursae Majoris car series is 4781*1920*1671, the wheelbase is 2815mm, the front tread is 1641mm and the rear tread is 1642mm. The car’s side lines are smooth, showing a dynamic and steady style, showing the unique design charm of Eta Ursae Majoris. At the same time, the front tyre size is 235/55 R19, and the rear tyre size is 235/55 R19, which is equipped with wide tires to provide better handling and driving stability for drivers. The rim design of Eta Ursae Majoris car series is fashionable and atmospheric, which adds a sense of luxury to the whole car.

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Starway Eta Ursae Majoris’s interior design style is fashionable and simple, paying attention to details and comfort. The steering wheel is made of leather, which feels comfortable and supports manual adjustment up and down and back and forth, so that the driver can find the most comfortable position. The 12.3-inch central control screen has a large size and clear display, and supports multimedia, navigation, telephone, air conditioning, sunroof and window voice recognition control systems, so that drivers can operate the vehicle more conveniently. The front and rear rows are equipped with USB and Type-C interfaces, which is convenient for passengers to charge. The front row also has mobile phone wireless charging function. The seat is made of imitation leather. The main seat supports front-back adjustment, backrest adjustment and height adjustment (2-way), and the auxiliary seat supports front-back adjustment and backrest adjustment. The second row of seats supports backrest adjustment, and the rear seats can be laid down in proportion, providing passengers with more space and comfort. The overall interior design is simple and clear, which meets the aesthetic needs of modern people.

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Starway Eta Ursae Majoris is equipped with a 2.0T 261 horsepower L4 engine with a maximum power of 192 kW and a maximum torque of 400 N m.. The engine is matched with a 7-speed wet dual-clutch gearbox, which provides excellent power performance and smooth shifting experience for the vehicle. No matter on urban roads or highways, Starway Eta Ursae Majoris can provide you with abundant power support.

In the evaluation of car home car owners, we can see that Starway Eta Ursae Majoris has some bright spots in its exterior design, especially the shape of the side and the rear of the car has been well received by car owners. However, the design of the front of the car is more general, and it is biased towards the shape of new energy vehicles. In addition, the owner also mentioned that the four exhaust pipes at the tail are too deliberate, giving people an unnatural feeling. In terms of body workmanship, the owner thinks that the overall performance is above average, but the gaps in individual positions are still large and the two sides are not completely consistent. Although there are some problems in some details, the stylish appearance and four-wheel drive configuration of Starway Eta Ursae Majoris still attract the attention of many car owners. It is believed that with the continuous optimization and improvement of Starway Eta Ursae Majoris, the future models will be more excellent and bring better driving experience to consumers.

Xiaomi Auto responded to "the owner complained that SU7 did not deliver the paint"

IT House reported on April 7th that recently, some netizens posted that they had bought the original version of Xiaomi SU7 car, but the car had lost paint, so they could only make up the paint and compensate 5000 points (the purchasing power in Xiaomi Mall is equal to 500 yuan) and then deliver it normally.

According to the cold and warm video report, after Ms. Mo refused, the other party proposed a solution of compensation of up to 20,000 points, which did not support the replacement of a new car, and the deposit for returning the car could not be refunded, which was rejected by Ms. Mo again. Ms. Mo insisted on a new car.

In this regard, Xiaomi Automobile customer service said that it is impossible to replace a new car, and it will take a long time to reorder. It can be negotiated with the delivery center, and relevant policies will be introduced to solve such problems. The staff of Shenzhen Xiaomi Delivery Center said that when it comes to the privacy of the owner, there will be a person in charge of the delivery center to handle it.

After the release of Xiaomi’s first car, SU7, the attention of netizens was very high. For this reason, Xiaomi officially launched nine episodes of "Answering questions from netizens".

Six-and-a-half-year-old Hua Xizi is exactly the age that attracts people.

Wen | Wen Jiajia

Producer | Lan Xi

Half a month after Li Jiaqi’s inappropriate remarks, Hua Xizi, who had been bombarded by the whole network and the public relations team left, was finally "crazy".

On the afternoon of September 26th, Hua Xizi officially released a Weibo saying, "I, Hua Xizi, am six and a half years old. I have a dream to be a high-end brand based on the local market and going global." Later, several comments were issued in the comment area, and the route of "crazy literature" was taken.

Soon, the topic "Hua Xizi’s madness" boarded the hot search in Weibo, and the reading volume exceeded 330 million. The whole platform launched a hot discussion on this incident. Despite its popularity, Hua Xizi’s operation did not get the desired word-of-mouth reversal, but caused more users to crusade.

Hua Xizi, who fell to the bottom of the valley overnight, certainly has a lot of reluctance, but this "splashing" operation seems to attract traffic, which will actually push consumers further.

No one cares about "crazy" Hua Xizi.

Half a month after the release of inappropriate comments, the live broadcast room in Li Jiaqi still has 10 million viewers. Although consumers have not forgotten the harm caused by Li Jiaqi, it is obvious that Li Jiaqi has not completely become an "internet outcast".

However, Hua Xizi failed to escape this robbery. From the beginning, the whole network debated whether an eyebrow pencil in 79 yuan was expensive or not, to the collective departure of Hua Xizi’s public relations team, and now he is "rolling around in his Weibo" for attention, and the road of Hua Xizi is getting narrower and narrower.

On the night of "madness" on September 26, Hua Xizi wrote in the comment area:

"I still want to speak out loud! ! ! ! I am also a 20W+ product experience officer, and every product must go through 1000+ user tests when it goes on the market … We are awesome! "

"It doesn’t matter if you are laughed at or ridiculed. I have been neighbors with LV and Gucci on the edge of the West Lake, and I will be opposite Chanel in Isetan, Japan’s top department store, and then I will go to France, Dubai and the United States to wait for me. "

"Does anyone really take grams to measure the value of eyebrow pencil?"

"Who knows the family, whose child is the only beauty brand when he is over 6 years old, and has been included in the Xinhua News Agency’s’ TOP10′ Global Communication Power of China Brands’ list together with brands such as Maotai, Alibaba and Huawei" …

Behind this series of speeches, Hua Xizi is eager to re-introduce his thoughts. Perhaps it is the fans of the authorities. Hua Xizi’s "crazy" marketing has received almost negative feedback from all sides.

△ Many netizens poured into the Huaxizi live broadcast room to brush the screen.

First of all, consumers, instead of feeling sorry for the difficult situation of Hua Xizi, add a little disgust.

Judging from its comment area, consumers have a set of logic to refute whether it is about doing public welfare, product production level or brand honor, and have labeled Hua Xizi as "green tea", "full of dad’s taste" and "greasy". Whether it’s selling badly or marketing, it’s hard for Huaxizi to let consumers choose it again by these few words.

Many Internet V’s are also puzzled by Hua Xizi’s operation. The "People Five _" with 1.35 million fans wrote: "I feel that Hua Xizi’s hair is very funny, because it is particularly old-fashioned. How many years have you been selling your feelings and dreams here? We bloggers all know that we should be altruistic when making content, and Hua Xizi is still dreaming here, as if going back to ten or twenty years ago to see that an amateur with no talent wanted to be a star and went crazy on the stage. No one cares about your dreams, everyone has their own life! "

Technology blogger "Joe Kevin" said: "No … he doesn’t think everyone will buy it, does he?"

In combination with the news that Hua Xizi was recruiting public relations with a sense of network with high salary, "crazy literature" did touch the internet, but I am afraid Hua Xizi has not learned the game of pulling emotions.

The sky-high traffic didn’t bring sales.

After dropping a bomb into the traffic pool of the whole network, Hua Xizi’s live broadcast room gained a higher popularity, but popularity does not mean user understanding and sales conversion.

On the evening of September 26th, the number of people in the live broadcast room of Tik Tok, the official flagship store of Huaxizi, was about 2,000, and the barrage was constantly refreshed, which looked highly interactive. However, in addition to the brand officialreview manipulationIn addition to a small number of barrage, more are still negative voices such as "I heard that you changed your product promotion" and "started to clear the inventory".

It is also worth mentioning that both the official live broadcast room of Hua Xizi and the live broadcast room with goods brought by a third party are mainly promoting the flower Xizi honey powder cake, and the most controversial eyebrow pencil has not been put on the shelves.

The overall effect of bringing goods is not as good as before. According to the data of Grey Dolphin, among the live broadcast data of Tik Tok Live Room, the official flagship store of Huaxizi in recent 30 days, except the number of times of bringing goods increased by 11.03%, the rest of the data such as the total number of people watching, the average number of people watching, the peak number of people watching, the average number of people online and the average length of stay in the field are all green.

In the month before Li Jiaqi’s "rollover", the total sales volume of Tik Tok Live Room, the official flagship store of Huaxi Zi, was between 1 million and 2.5 million, but in the past two days, even with the traffic blessing, the total sales volume was only between 25,000 and 50,000.

Looking at the bleak data, it is no wonder that Hua Xizi is so anxious to save the hearts of consumers. What’s more, in sharp contrast, it is the hot selling tide of domestic products after "a whale falls and everything lives".

The three "little old men" in the live broadcast room of Vitality 28 know nothing about traffic and marketing, but they have increased their powder by over 3 million, and their daily sales exceeded 5 million; While relying on 79 yuan’s product set to gain a lot of interaction, the bee flower also successfully exploded the product; There are also brands such as Hongxing Erke, Mixue Ice City, White Elephant Instant Noodles, Huiyuan Juice, Southern Black Sesame Paste, Wei Long, etc., which have achieved amazing results.

These old-fashioned domestic products, who had been unable to enter the live broadcast room of the anchor with goods on their heads, finally waited for the moonlight moment through the splash of wealth by Li Jiaqi and Hua Xizi. More importantly, consumers have also been instilled with the idea that "the original cost of living can not be so high" in this wave of domestic products "chaos", and good and cheap domestic products have begun to occupy the minds of users.

And this kind of effortless relaxation is exactly what Hua Xizi craves. However, Hua Xizi may think that this is a test of network sense, but in the eyes of consumers, this is just a matter of consumption returning to reason and marketing giving way to strength.

△ Changes in sales data of the official flagship store of Huaxizi in Tik Tok live broadcast room

Hua Xizi, who understands the Internet, has not yet understood consumers.

Without last night’s "Crazy Literature", although Hua Xizi was branded as a "cosmetic assassin" by consumers, there are still some people who think that he was just accidentally implicated by Li Jiaqi and was "sitting together". But after one night, those former fans seem to find it hard to love Huaxizi any more, and even begin to think that Huaxizi and Li Jiaqi can be deeply bound for such a long time, in the final analysis, they are still the same kind.

Hua Xizi’s "Crazy Literature" has repeatedly mentioned his achievements. These titles and awards are true, but of course they are inseparable from the power of marketing.

Since its establishment in 2017, Huaxizi has grown at an amazing speed. A year later, Hua Xizi reached a business cooperation with Li Jiaqi Live Studio, and even got on the express train. Then Hua Xizi’s loose powder won the sales volume of more than 700,000 boxes during the double 11 in 2019.

The reason why Hua Xizi’s achievements are directly linked to marketing investment is that beijing business today once reported that Hua Xizi’s GMV will reach 3 billion yuan in 2020 and 5.4 billion yuan in 2021, and his marketing investment is very huge. According to statistics, Hua Xizi only invested 20 million yuan in monthly marketing expenses on the live broadcast platform in the early days.

In the era when traffic is dominant and live broadcast is paramount, such a development model is normal. Paying more attention to marketing than R&D has become a big environment, and telling stories, discussing packaging and doing marketing has also become a routine way for emerging brands to rise rapidly.

As a result, brands such as Huaxizi, Perfect Diary and Winona came from behind one after another, and walked smoothly under the name of "the rise of domestic products". On the contrary, those old-fashioned domestic products that are honestly engaged in research and development and production have always been outside the Internet, unable to enter the consumer’s field of vision, and even the problem of survival has become difficult.

But the change of the times has always come suddenly. When consumers realize that the price of Hanako’s eyebrow pencil is higher than that of Shu Uemura and that of loose powder is higher than that of Chanel, the backstab feeling brought by the brand will deepen consumers’ negative emotions.

But what Hua Xizi, an "Internet aborigine", is imagining is to use a successful marketing to cover up negative public opinion. When "crazy", it may think: as long as I shout loudly enough, then everyone can understand me and feel sorry for me.

Facts have proved that Hua Xizi was wrong. Consumers not only won’t buy it, but also responded with a louder voice. "You have to know who brought you these honors. It is our ordinary consumers. Without us, you are nothing." Some users said this.

There is also the public relations of domestic brands who told the author, "Hua Xizi’s practice this time has a big mistake of blindly explaining and exporting, trying to show all his advantages." Although words have a sense of network, they have no real feelings, but they reveal a wronged and misunderstood grievance. In the case of overwhelming negative public opinion, such an approach is actually only to further deepen the rebellious psychology of consumers. "

Indeed, at present, regardless of Hua Xizi’s research and development technology, production technology, charity work and brand determination, consumers have been unable to pay more attention, and attitude is the focus they care more about. After all, to be miserable, those domestic brands that once lived a hard life and are still cheap and good are more worthy of support in the eyes of consumers.

The public opinion storm of the national crusade against Hua Xizi is still sweeping. It is still unknown what other operations Hua Xizi with a "good attitude" can come up with, but from the current point of view, it still doesn’t know how to think from the perspective of consumers.

Zhiji Automobile released the road map of intelligent driving products in the next 3-5 years and moved towards the end of automatic driving.

Beijing News Shell Finance News (Reporter Lin Zi) On August 16th, Beijing News Shell Finance reporter Zi Zhiji learned that Guo Hui, the chief scientist of Zhiji automobile intelligent driving, announced that Zhiji would officially open the public beta of "iAd City NOA" in October this year, and iAd intelligent driving would be fully data-driven, and most scenes would be automatically driven in the next 3-5 years, leading to the end of automatic driving.

From the road map, in the next 3-5 years, Zhiji Automobile will start the intelligent driving products to accelerate the running, and the intelligent driving products such as high-precision map NOA, urban NOA and commuting mode will be intensively launched. Among them, "going to the high-precision map NOA", IM AD will open the public beta in September; "City NOA", which started internal testing in April this year, is progressing smoothly and will start public testing in October; "Commuting mode" is expected to quickly cover 100+ cities nationwide in 2024; In 2025, IM AD will enter the era of Door to Door.

Zhiji Automobile was established on December 25th, 2020. It is a brand-new user-oriented automobile science and technology company jointly built by SAIC, Zhangjiang Hi-Tech and Alibaba Group. In July this year, SAIC announced the signing of a memorandum of understanding with Audi to jointly sprint the new electric intelligent track. It is reported that the two sides may cooperate on Zhiji’s electric vehicle platform.

Editor Yue Caizhou

Proofread Junyan Zhang

Look quickly! All the secrets of LI are here.

  [car home Information] March 2 was a magical day. On the other side of the ocean, Musk talked about secret ambitions on Investor Day; Li Xiang, CEO of China and LI, spent five pages of PPT at the media communication meeting and shared it for two hours. In view of all the contents he shared, this paper only extracts the product information that everyone cares about, focusing on the follow-up product planning, autonomous driving progress and intelligent cockpit.

Some core messages:

1. Ideal to be a pure electric product, and still adhere to brand positioning: the luxury electric vehicle preferred by the family can be at the same price as the extended-range product.

2. NOA, the ideal city, was pushed to Max users in the fourth quarter.

3. Ideally, 8295 chips will be introduced, and L7/L8/L9 will support the replacement of 8295 chips.

Home of the car

■ What is the ideal pure electric vehicle?

  Friends who care about the ideal know that the ideal is not a dead-end extended range, but also pure electricity, and will make extended-range products until 2030. Unfortunately, at this communication meeting, we still don’t know what the ideal first pure electric product is. LI’s classmates told me that it is a "form you haven’t seen before", and the spy photos that have flowed out at present show that it may be an MPV. But obviously the ideal is not only a pure electric product, combined with the information of the financial report communication meeting at the end of February,The ideal pure electric product has a product sequence similar to the L series, which meets the needs of home users in the price range of 200,000-500,000.Of course, no matter what body shape it is, it is bound to have a big impact on the pure electric products that are mainly used at home at this stage.

Home of the car

"ideal pure electric MPV spy photos"

  However, no matter what this pure tram is, it still adheres to the ideal concept of "luxury electric car preferred by the family". Therefore, friends who care about their families can rest assured that the ideal pure electric product will not suddenly go off course, and get a big super-run with a speed of 100 kilometers for 3 seconds, so just wait and buy it.

  Li Xiang mentioned in his speeches everywhere that choosing extended range can solve two problems, one is battery cost and the other is energy supplement. Excellent manufacturers are trying their best to solve these two problems, such as Tesla’s extreme cost reduction and overcharging, and Weilai’s desperate efforts to build and replace power stations.

  The cost of batteries remains high, either manufacturers lose money to earn money or consumers spend more money; It is inconvenient to replenish energy. Some people say that an ideal range extender with low technical content directly hangs the 800 VSiC that a manufacturer has worked hard to make, which is not rough.

  Of course, we can’t say that the technology of 800V SiC is not good. In fact, the ideal pure electric vehicle is also this technology, and this technology is used to solve the above-mentioned cost and energy supplement problems.

Home of the car

  In terms of cost, Li Xiang said that 800V pure electric products are not so expensive, and they can achieve the same price as extended range. He said that the battery of 100kWh can last about 600km now, but we can use 80kWh through 800V and SiC components. And let the cost drop by 30,000-40,000 yuan, and the money saved will of course be piled up in the comfortable and intelligent configuration that we like to see.

  In terms of energy supplement, Li wanted to show a set of mode of household slow charging+urban fast charging (200kW)+ high-speed overcharge (480kW), and he also made the account clear. For example, a charging station with 480kW+3 250kW piles costs 1 million RMB, and 1,000 stations are built, which will be shared over five years, with an annual income of 2 billion, that is, 100 billion yuan.

  However, some people question this set of accounting logic and the pressure of the power grid. As we are not experts, we will not analyze it indiscriminately. In short, we all know that the ideal is to replenish energy, and it will not be worse than other manufacturers.

  Summarize the characteristics of ideal pure electric products: strong household attributes, the same price as extended range, and comfortable energy supplement. As for the time, although Li Xiang didn’t say it, according to the news in early February, it was off the assembly line in July and officially mass-produced in September.

Home of the car

  By the way, L5 is a big satellite in LI. At present, there are only two information points that Li wants to talk about in Weibo, namely, the non-SUV form and the price range of 200,000-300,000. However, according to Li Xiang himself, the ideal L7/L8/L9 is just like an Apple mobile phone, except for the case. This is really keep real… Then the L6 (five-seat SUV within 300,000) and L5 are estimated to be quite different. The form of non-SUV is a supplement to the ideal product line. After all, you have to walk on two legs these days.

■ NOA internal test of the ideal AD Max open city in the fourth quarter.

   It is not a new force to not engage in autonomous driving these days. In the new year, everyone began to roll up the city NOA. The ideal plan is to open the internal test of early bird users in NOA city on the ideal AD Max in the fourth quarter of this year. It should be noted here that the AD Pro version does not support urban NOA, but the actual experience of high-speed NOA is basically the same as that of the Max version, so you must pay attention when buying a car.

Home of the car

  Li Xiang believes that electric vehicles that cannot realize NOA in cities can only be called "electric vehicles", not "smart electric vehicles". The city NOA is actually similar to the high-speed NOA realized by many manufacturers at present, except that the scene is changed to the city, and the automatic driving from point A to point B is realized in the city without human takeover.

  From the second half of 2022, the city NOA has taken shape. Tucki, the pioneer of autonomous driving, pushed CNGP (city NOA, called by different manufacturers) on P5 in September 2022; Extreme Fox Alpha S HI and Huawei, WEY Mocha and Millie Zhixing have all realized this function.

Home of the car

"Tucki city navigation aid"

  At present, there are various factions and ideas under NOA in the city. For example, whether the high-precision map is used or not has undergone a series of changes and iterations. Previously, Tucki was a high-precision map player (it seems that he hasn’t completely given up now, and He Xiaopeng also proposed to speed up the review process of high-precision maps at the two sessions), and he also has Grade B mapping qualification. But now most players are gradually turning to the route of "emphasizing perception and ignoring maps", and in terms of perception, there are also pure visual Tesla and radar cameras.

  Under the mode of relying on high-precision maps, the city NOA will be limited to cities that allow surveying and mapping. For example, the city NCA of Polar Fox is still limited to Shenzhen and Shanghai. Li Xiang said that the ideal will not demarcate the city NOA one by one like the traditional model, but will promote NOA in many cities based on the big model and BEV (Bird’s Eye View, not electric cars). This is also the so-called software 2.0 era.

Home of the car

"Tesla’s perceptual process"

   BEV perception is to establish a bird’s-eye view of camera images from multiple perspectives and then perceive them, and cooperate with Transformer algorithm to make autonomous driving more cattle. In the case that Tesla, a pioneer, explores the road for everyone, domestic car companies have also started this set of operations. Li wants to predict that these companies using the Orin computing platform will basically deliver the earliest NOA; for testing in the fourth quarter of this year; By the end of the year, most head enterprises can achieve the level of Tesla at the end of 2011, and by 2024, everyone can generally achieve the level of Tesla in North America at the end of 2022 and the beginning of 2023.

  In the end, the city NOA does not need to become fully autonomous driving, but it can help drivers improve their experience when there is traffic jam every day. If more than 60% or even more than 80% of the cars in the city can be driven by this function, and the safety is no problem, it will have a huge change. Just as consumers buy a 20-30-story building, it is a fundamental difference whether there is an elevator or not.

  Judging from the current situation, autonomous driving also requires manufacturers to continuously educate users to use it, so that users can’t live without it. The utilization rate of assisted driving in LI is over 13%, and the utilization rate in high-speed scenes has exceeded 50%. According to the Spring Festival travel data released by Weilai, its total mileage is 276,699,061 kilometers, and the total mileage of NIO Pilot is 39,135,610 kilometers, about 14%.

  But judging from the situation of G9, another new force in Tucki, it has little effect on assisted driving. I think that autonomous driving is indeed the right way, but this road has a long way to go. Perhaps next year, with the landing of NOA in the city, the utilization rate of automatic driving assistance can be significantly improved.

■ Don’t worry, the old owner can upgrade 8295.

  LI is known as "creating a mobile home", so they collectively refer to the things in the car as intelligent technology, and this space will be the largest, most comfortable and most intelligent. Everyone holds a screen at home, so be sure to put more screens in the car. In this regard, everyone is most concerned about getting on the 8295 chip.

  The computing power of Qualcomm 8295 chip is eight times that of 8155. According to the current rhythm, the ideal may be the same as that of Jidu, and 8295 will be delivered in the fourth quarter of this year, and the ideal new product is expected to be released during this time period. Then the question is coming. What about the old L9/L8/L7? I believe that everyone has not forgotten the rights protection incident of Li ONE’s change before?

LI Ideal L9 2022 Max

  But don’t worry this time, the old car owner can change the 8295 chip, but the change and how much money are still under study. At that time, Zhu Yu, who spent 300 million yuan to upgrade the old car owner for free, was in the front. What would the ideal do? However, it should be noted that the ideal delivery volume is not comparable to that of Krypton in that year, so I suggest that the old car owners should have a bottom in mind first, and it may be more comfortable to lower their expectations in the future.

Home of the car

  After getting on the bus, the 8295 has greatly improved the intelligent cockpit, supporting more screens, stronger 3D rendering ability and millisecond voice. Even due to its powerful computing power, even if NVIDIA’s autopilot chip dies, it can take over autopilot … At present, 8295 is still a piece of jade to be carved, depending on how the manufacturer empowers it. According to Jidu, at present, manufacturers have not fully utilized 8295, especially in the AI part. Just as the ideal is also very concerned about AI, we can look forward to how the ideal plays 8295.

LI Ideal L9 2022 Max

  In addition, the "ideal classmate" has changed from the elephant scheme to the ideal self-research, and has now evolved into a new generation of end-cloud integrated architecture, which can support the deployment of stronger and more complex algorithms in the car. In addition, the self-developed algorithm has also improved in voice and visual interaction. LI believes that a good voice assistant should be awake, quick in execution, accurate in recognition, able to understand everything and speak human words. That is, to improve perception, performance and recognition. Suppliers can no longer meet their needs, so they turn to self-research.

■ Where is the degree of "self-research"?

  Next, we want to talk about "self-research". Tesla, the industry leader, has always been a leader in its self-developed chips; BYD, the king of China, is a moat for its self-developed and self-produced batteries, which can also be exported. Many car companies are also flaunting their own self-research on assisted driving, electric driving and engines. Where is the degree of "self-research"?

  LI believes that self-research and self-control are two dimensions, and the proportion of self-research and self-control should be controlled at 25%-30%, which should not be too high or too low. In addition to fully meeting the needs of users, we should also ensure the landing of core technologies and the safety of supply chain. The direction of self-research of ideal core technology is all related to platform technology. Such as extended-range electric, high-voltage pure electricity, smart space, intelligent driving and EEA electrical architecture. There will also be some self-developed technologies such as silicon carbide functional modules and three-in-one motors on the pure level stage.

Home of the car

  In terms of meeting the needs of users, for example, a "task master", the hardware and software of the task master can be called together. Li Xiang said, whether it is self-research depends on how many functions can be called in the task master. Some functions are not open to you by the supplier. Only you can call all the functions by self-research and combine them together.

■ Edit summary

    Generally speaking, this paper only shows a small part of the ideal spring communication meeting. At this communication meeting, what Li wants to share is not only about products and technologies, but also a lot about companies, growth and entrepreneurship. It can even be said that if you want to start a business, you can also benefit from listening to this communication meeting.

  In the first two months of the year 2023, the ideals are firmly in the top position of the new car-making forces. Obviously, the ideals still have big moves. So what level do you think LI can reach this year? Can you surpass the second-line luxury and challenge BBA? Welcome to communicate in the comment area. (Text/car home Xing Yueyang)

What a Three Kingdoms version of Infernal Affairs! I would like to call "The Wind Rises in Longxi" the "spy war drama king of the year"

Author: a dead end

Reprinted source: a little drama reading (ID: yidianjd)

"I don’t believe in him (Chen Gong), I believe in my heart."

"Kill me yourself as your last warlords."

 "If you are a wandering owl, your life is not your own."

"One person is exposed, which involves the lives of all people on the whole line."

……

These sounds like lines from spy movies, which can pull people into a turbulent era in one second, but in fact, this unique temperament comes from a "spy war drama in costume"-"The Wind Rises in Longxi" directed by Lu Yang and starring Chen Kun and White.

With the familiar stories of the Three Kingdoms, such as the Battle of the Northern Expedition and the defeat of the street pavilion, The Wind Rises in Longxi has opened an unknown intelligence battlefield of the Three Kingdoms, and its unique perspective has made it one of the most anticipated new dramas in the May 1 ST file.

"Help, after watching the first two episodes, I would like to call it my best drama-chasing this year", "The military division between Cao and Wei is too awesome, and it is broken step by step by following the clues just left by Shu and Han"-social platforms such as Douban and Weibo, and many viewers are transformed into tap water Amway.

Director Lu Yang’s lens language and pictures always give people a sense of mystery, which is the inherent temperament of the play "The Wind Rises in Longxi", and the story of the Three Kingdoms is familiar to the public. However, like Ma Boyong, under the creative principle of "historical possibility novels", it is rare to focus on a group of little people-"spy war informers" during the war period and give them ancient costume spy war dramas with flesh and blood and rich feelings for home and country.

From the perspective of subject matter, a number of producers such as iQiyi are undoubtedly "pioneering"; Looking back, the concept of "the universe of ancient Chinese city" of iQiyi was completely established after the successful launch of "The Wind Rises in Luoyang" adapted from Ma Boyong IP last year. Now, this wind has blown from Luoyang to Longxi.

After chasing six episodes in one breath, it can be said that the domestic costume spy war "The King of Drama" and "The Wind Rises in Longxi" are stable!

The Three Kingdoms version of Infernal Affairs,

Who is "Candle dragon" in The Wind Rises in Longxi?

 

In 228 AD, the northern expedition of Shu defeated Wei. Zhuge Liang, the military steward, shed tears and beheaded Ma Su, thus ending the Northern Expedition of Shu Army. Why did Zhuge Liang fail in this battle? Some people say that even a wise man sometimes nods, while others attribute the failure of this campaign to Ma Su’s embarrassing task.

In Ma Boyong’s works, another key point of the failure of this campaign lies in the intelligence error of the Shu army lurking in Wei, code-named "Bai Di", which led to the defeat of this war.

Then who will carry out this task? Of course, it is Feng Ying’s right-hand man Xun Xu (White). Interestingly, just before Xun Xu left, Feng Ying tortured him like a procedure and fed him poison before he was released. Xun Xu, who finally came to the state of Wei, made a "personal threat" to Chen Gong before he met him, which confirmed that he had not defected. What really led to the mistakes in military intelligence was the "Chi Di" planted by Wei in Shu, code-named Candle dragon.What a Three Kingdoms version of Infernal Affairs!

Judging from the first six episodes that have been updated at present, there are many things to watch in Wind Up and Longxi.One is the strong plot and fast pace based on spy war.For example, after the defeat of the Northern Expedition, the Shu army gave an order to exterminate the undercover and sent people to Wei to find out. Xun Xu learned the truth and went together with Chen Gong to find "Candle dragon". When watching a play, the audience really has a kind of pleasure to lift their hearts to their throats.

Then again. Why can Chen Gong gain a foothold in Shu and gain the trust of Guo Gang?This is due to the reasonable logical arrangement of the screenwriter.Lurking in the Wei Dynasty, Chen Gong did what he liked every day. In the World War I of Cao Wei and Tianshui, it was the key that he took risks to save Guo Gang’s life. This also indirectly explains why Chen Gong is suitable for "spy war".

In addition to the suspenseful spy fighting method, the drama "workplace palace heart" is also step by step. For example, the political struggle between Zhuge Liang and the general Li Yan, and Li Yan’s actions such as placing confidants around Zhuge Liang’s henchmen after his success in the upper position, all made the audience quite enjoyable.I have to say that the team’s careful polishing and layout of the relationship between the characters in the play are quite ingenious.

In a word,"The Wind Rises in Longxi" is a rare spy war masterpiece in domestic dramas in recent years.Its fine features are not only strong plot, fast-paced and logical plot, but also reflected in its picture.

Immersive pursuit of drama,

The "real" version of the Three Kingdoms context is coming!

 

What is the real context of the Three Kingdoms? Director Lu Yang once mentioned this sentence in the production of the special edition."It (the Three Kingdoms) is a period of war, and it is doomed that its scenery is relatively simple."Therefore, the whole article of The Wind in Luoyang can be said to adopt an aesthetic design of "doing subtraction".

For example, in the layout of military camps and homes in Shu and Wei countries, the simple layout of "one table, one chair and one candlestick" is mostly adopted (more blanks are left).There is a scene in the play, in which Chen Gong and Xun Xu discuss how to annihilate Guo Gang and replace Sima Mi. They sit at the table face to face, and the minimalist environmental layout and square gold composition in the room not only highlight the complex mood of the characters at this time, but also explain the wandering situation during the war.

Lu Yang’s shots are always subtle and poetic. For example, at the beginning of the series, Chen Gong and Guo Gang stood on the tower, and the panoramic view was swept away. Under the tower was Tianshui County, which was recovered. The two men smiled at each other, and the sky was overcast, suggesting that a real coup was about to take place in the city.

In addition to the superb use of lens aesthetics, the actors’ manners, including lighting design, are quite absent-mindedThe clothes worn by Chen Gong, Xun Xu and others are mostly cotton and linen cloth, which conforms to the background of the Three Kingdoms. White, Nie Yuan and many other people’s beards in the play were also specially stored by the actors before the crew started shooting. In lighting design, natural light, candlelight and other light sources are mostly used in the whole film, aiming at creating a real "Three Kingdoms" situation for the audience.

Actually, it’s not just that.There is also a lot of "real" elegance in the play.For example, the actor’s martial arts drama, the action design of "boxing to meat, never two knives that can be solved with one knife", all echoes the background of the Three Kingdoms; Wei Shu’s different climate environment, such as Shu’s humid, when shooting this part of the play, we choose the drizzle scene or create a thin sense of water vapor; Wei, on the other hand, is relatively rough and dry, and mostly adopts simple composition.

Why did the director team go to so much trouble to make these details? Lu Yang believes that this isCreate an immersive drama-following experience for the audience.. This kind of experience, in addition to his production level, is also reflected in many "small thoughts" of the film.

For example, at the beginning of each story, the audience will see the opening phrase "idiom". For example, the stealing of the beam in the first episode, the robbery in the second episode, and the shelling of the golden cicada in the third episode all have the meaning of "point". The adoption of this drama creation mode also shows the intention of the film-to facilitate the audience to better understand the plot. No wonder some netizens shouted: "Looking at" The Wind Rises in Longxi ",I seem to have read a book" The Art of War "."

At present, the audience is no longer a "simple" audience who is preoccupied with TV and just wants to watch men and women talk about love. They are constantly advancing with the times with high demands on the plot and detailed requirements.Whether it is a story or a scene picture, the "immersive" drama-chasing experience established by "Wind Up in Longxi" makes the audience feel refreshed and immersed.

This is an important reason why "The Wind Rises in Longxi" can stand out from a number of new dramas in the market at present, and continuously gain high-quality reputation. It is also the core driving force for the audience to enjoy it and keep chasing it.

Rebuilding the "China Story" in the Universe of Huaxia Ancient City

 

Now when we talk about the story of China, what will the audience think of first? Is it the ancient times when Nu Wa filled the stone and Jingwei filled the sea, or when Liu Guanzhang fought Cao Cao? Both. But it’s not complete.

The Wind Rises in Longxi is just such a "China Story" between history and fiction. Its traditional culture is not only reflected in the war between Wei and Shu in Longxi during the Three Kingdoms period, but also reflected in the humanistic spirit behind it.

What is humanistic spirit? exactlyA group of "little people" are constantly struggling, tumbling and firmly determined in the flood of war.Just like Chen Gong and Xun Xu, they are Shu people. For the sake of the great cause of their country, they both devoted themselves to the cause of spy war. After going through life and death tests again and again, they never changed their minds and remained bright. The purpose is to let the people end their wandering life as soon as possible. In the process of careful study, they also showed the affection for children in human care, such as the brotherly feelings of mutual trust and caring, the war love and ideal feelings of Chen Gong and his wife Zhai Yue.

Even as opposites, the "pseudo-brotherhood" between Chen Gong and Guo Gang was once moving. Sima Mi’s determination to Wei is equally valuable; Including Angelababy’s female masterpiece, it seems that there is also an unknown side.

It can be said that "The Wind Rises in Longxi" vividly expresses the positive and negative aspects of human nature.There is no absolute bad guy in the play, only a relative "loyal gentleman". This is the intriguing aspect of this drama, and it is also the humanistic spirit that has been mentioned in our traditional culture.

In fact,It is not the first time that Iqiyi has laid out the story of China and constructed the cosmic map of the ancient Chinese city.As early as in "The Wind Rises in Luoyang", which was also adapted for Ma Boyong IP, this traditional cultural spirit and China story, which went deep into the bone marrow, were expressed incisively and vividly. Although Gao Bingzhu, Bai Li Hongyi and Wu Siyue in the play are a group of small people with different backgrounds, they also have a benevolent heart to firmly protect the capital and let the people live a better life.

It is not difficult to find that, based on the core of China traditional culture, the background is set in the Millennium ancient city with rich cultural heritage, and with the help of wonderful story interpretation, the audience seems to be in the history of Chinese civilization, and explore the humanistic spirit behind the story … These are the expression of the value of the universe in the ancient city of Aiqiyi Huaxia.

At present, in the universe of the ancient Chinese city, there are Thirteen Lines of Guangzhou, which are based on Guangdong merchants in the Qing Dynasty, both of which are adapted from Ma Boyong IP, focusing on the 15th of Liangjing during the first year of Hongxi, Daming, and Dunhuang, a new network of red cities after the Forbidden City became popular in the market. These new explorations focusing on the story of China and uncovering the mysterious theme of the ancient city of China all correspond to the pursuit of the "Renaissance" by the trend of the Z era.

"It’s windy", just like a line by White in the play. Now, this hot air, which belongs to "The Wind Rises in Longxi" and belongs to the universe map of iQiyi Huaxia Ancient City, has just begun.

The "chain" on the data is the "health account" of the battery, and the new energy battery realizes the green cycle.

  CCTV News:In recent years, China’s new energy vehicle market has experienced explosive growth, and a round of "retirement tide" of new energy batteries is also coming. The battery contains a variety of heavy metals, which will cause environmental harm if it is not handled properly. While the new energy automobile industry is booming, where should the retired batteries go?

  In a battery recycling plant in Guangdong, the reporter saw that the batteries retired from new energy vehicles were piled up in the whole factory.

  Lin Xiaojie told reporters that in order to deal with the surge of retired batteries, the company built two new factories in Jiangmen and Jiangsu in 2023, and opened 10 new production lines. After the retired batteries enter the factory, they will go through the processes of screening, crushing and smelting. Valuable metals such as nickel, cobalt and manganese are extracted and resold. However, if this process is not handled properly, it will cause pollution to the environment.

  According to statistics, China has entered a period of large-scale decommissioning of power batteries. In 2023, China’s decommissioned power batteries will reach 590,000 tons. Since 2028, the decommissioning of power batteries in China will exceed 2.6 million tons per year. What should I do with the surge in retired batteries? The reporter saw various solutions in the investigation.

  According to the national standard for new energy vehicles, the remaining 80% capacity of the power battery can be retired. The decreased battery capacity will reduce the cruising range and affect the user’s experience. However, retired batteries can still be used in energy storage, electric bicycles and other scenes with low requirements on battery performance to achieve "step utilization".

  The "chain" on the data is the "health account" of the battery book.

  Although "step-by-step utilization" can prolong the service life of power batteries, it is not easy for recycling enterprises to practice, mainly because the cost of knowing the loss degree of retired batteries is very high. The reporter found in the investigation that the application of a new technology is bringing changes to the industry.

  In front of this big screen, the health data of more than 30 thousand power batteries are flashing in real time. Don’t underestimate these data. Liao Zhicheng, the head of the battery operation company, told reporters that they can make some batteries sell for three times more when they are recycled.

  In the past, if you want to reuse the retired batteries, the recycler can only disassemble the battery pack, test the health of each battery cell, pick out the appropriate ones and assemble them into new battery packs. And more recycling enterprises that lack the corresponding technology and manpower can only dismantle and crush the retired batteries as waste products and sell the heavy metals in the batteries directly.

  The chip in Liao Zhicheng’s hand is like a "healthy housekeeper" on the battery. It not only "accounts" the use of the battery at all times, but also uploads the data to the blockchain platform in real time so that they cannot be tampered with. In this way, the recycler can know all the "health data" of the battery without disassembling them one by one. The reporter learned that battery packs with a high degree of "health" can be sold to 300 yuan at the time of recycling, which is three times that of the past.

  At present, China has built the world’s largest new energy equipment blockchain platform, with more than 8 million new energy equipment on the chain. With the use of street lamps, toys and other scenes that require less battery capacity to join the cycle, it is possible to use new energy batteries more times.

  Green cycle of new energy batteries from production to recycling.

  After retirement, the service life of new energy batteries will become longer, but they will eventually be dismantled and recycled. How to make the new energy battery form a green cycle of energy saving and environmental protection from production to recycling?

  China’s lithium resources account for only 7% of the world’s total, but China’s production and sales of electric vehicles account for 60% of the world’s total. Therefore, it is of great significance to extract lithium, cobalt, nickel and other metals from batteries and recycle them into new batteries.

  The reporter learned in the investigation that at present, more than half of the retired batteries are handled by enterprises that do not have the qualification to handle them. There are some problems in dismantling and recycling, such as high energy consumption, low metal recovery rate and poor environmental protection. In view of the present situation, the Ministry of Industry and Information Technology announced four batches of white list enterprises for power battery recycling, and actively guided the regularization of power battery recycling.

  Experts told reporters that to form a stable, green and sustainable recycling system for power batteries, unified national standards, industry standards, recycling standards and recycling channels are needed. In recent years, China has successively issued national standards such as power battery disassembly specifications and residual energy detection, so as to promote the national unified coding of power batteries. The relevant departments said that they are speeding up the formulation of the Management Measures for the Recycling of Power Batteries for New Energy Vehicles to further improve the standard system of power batteries.

Full process control to ensure the safety of lithium battery

  Lithium battery production line. Photo courtesy of vision china

  ◎ Chen Ke Our reporter Changfeng Wu

  With the popularity of mobile phones and electric cars, lithium batteries are playing an increasingly important role in people’s lives. However, the fire and explosion accidents of electric vehicles and energy storage power stations caused by the inherent thermal runaway of lithium batteries also make the safety of lithium batteries a problem that cannot be ignored. This is also a long-term technical challenge faced by the lithium battery industry.

  At the Sichuan Science and Technology Awards Conference held recently, the team of Professor Xiang Yong from the University of Electronic Science and Technology of China, as the first completion unit, won the first prize of Sichuan Science and Technology Progress Award for the project "Key Technologies and Applications of Safety Control of Lithium Batteries Based on Multi-field Perception and Independent Flame Retardation". "How to improve the safety of lithium batteries and reduce the risk of overheating and explosion of batteries is a must." Xiang Yong said that in order to overcome this hurdle, he and his team have been exploring and struggling for more than ten years.

  Overcoming three major problems of lithium battery safety

  "Since 2012, we have gradually developed a complete electrochemical Qualcomm characterization platform and made a series of achievements in the research of lithium battery electrolytes, electrode materials and packaging materials." Xiang Yong said that he and his team began to try to apply the electrochemical Qualcomm characterization technology to the research on the dynamic change of the safety performance of lithium batteries in the whole life cycle, but during the research and development process, they found that the parameters monitored by the existing characterization methods were not enough to directly reflect the thermal runaway risk of lithium batteries.

  In Xiang Yong’s view, the thermal runaway process of lithium batteries involves manufacturing defects, aging and deterioration, management failure, abnormal environmental conditions and other factors, as well as manufacturing, storage and transportation, service and other links, and many technical problems need to be solved urgently.

  "There are three main problems to be overcome to solve the safety management and control of lithium batteries throughout their life cycle." Xiang Yong told Science and Technology Daily that real-time monitoring of thermal runaway of lithium battery is the first difficult problem. The difficulty lies in that conventional sensors cannot be embedded in the battery, and external signal sensing can only be relied on to infer the safety state of the battery, which will lead to inaccurate monitoring data.

  "Early warning and protection of lithium battery thermal runaway process is the second problem." Xiang Yong said that the measures taken after the thermal runaway of lithium batteries are usually "one size fits all", that is, shutting down the whole power supply system, which can not fundamentally eliminate safety accidents and will damage the service reliability of the power supply system.

  "The combustion blocking after the lithium battery caught fire is the third problem." Xiang Yong said that in the electrolyte of lithium battery, the organic solvent will produce flammable and explosive components when it is decomposed by heat, which will become the root cause of the fire and explosion of lithium battery after being mixed with oxygen. Therefore, once the lithium battery catches fire, it is extremely difficult to block the combustion.

  After clarifying the R&D problems and selecting the R&D direction, Xiang Yong team, together with Sichuan Institute of Safety Science and Technology, Sichuan Institute of Product Quality Supervision, Inspection and Testing, Sichuan Branch of China Tower Co., Ltd., Southwest Petroleum University and other Industry-University-Research companies, conducted in-depth research and exploration on the monitoring and control of the safety status of lithium batteries throughout their life cycle. Under the leadership of Xiang Yong, the participating research institutes have made concerted efforts to tackle key problems, giving full play to their respective strengths in the fields of theoretical research, technology development and application promotion.

  "We have successfully developed the in-situ preparation integration technology of multi-parameter thin film sensor and lithium battery current collector, realized the integrated integration, and solved the problem of sensor ‘ Buried, measured accurately, transmitted, with little influence ’ Key technical challenges. " Xiang Yong said that the team independently developed a special algorithm for artificial intelligence electrochemical countermeasure migration learning, and combined with the precise design model developed in the early stage, the accuracy of fault battery identification was improved to 98.6% in one fell swoop; Self-developed Qualcomm electrolyte preparation and screening technology and related devices improve the screening efficiency by 100 times, and realize the rapid optimization of the flame retardant and electrochemical properties of electrolyte.

  On April 24th, 2022, an expert group headed by Academician Wu Feng, a famous lithium battery expert, evaluated the technical achievements of lithium battery safety series developed by Xiang Yong team. The expert group agreed: "This achievement belongs to the international frontier technology field, and its indicators, model prediction accuracy and electrolyte self-extinguishing time are at the international leading level."

  Accumulated economic benefits exceeded 1 billion yuan.

  Since 2019, China Tower Energy Company has applied the project results to the power supply system of China Tower communication base station, supported the real-time online monitoring of more than 500,000 lithium batteries in the standby system of Sichuan communication base station, and warned the safety risks of lithium batteries for more than 20,000 times, with a success rate of 100%. More than 13,000 failed batteries were safely returned, and fire hazards were eliminated for more than 1,500 times, which effectively ensured the safe operation of the tower communication base station without any lithium battery thermal runaway accident.

  Shanghai Institute of Space Power Supply applied this achievement to solve the problem of sudden safety failure of lithium battery module. At present, this technology has been applied to Fengyun-4 02 satellite, new technology test satellite and other models; Sichuan Changhong Power Supply Co., Ltd. has developed a special integrated power supply with high weight ratio and high density of batteries and accessories based on the results of this project.

  In October 2019, after introducing the technical achievements of the project, Hubei Yiwei Power Co., Ltd. further developed the online capacity prediction technology of lithium batteries, and successfully applied the new technology to the transformation of existing production lines and the construction of new production lines, effectively improving the production capacity of lithium batteries.

  Xiang Yong told reporters that the popularization and application of the project results can help to develop high-safety and high-reliability new lithium battery products, eliminate hidden dangers of production safety risks, and also help to develop new lithium battery safety management system and improve the safety management and control level of lithium battery system. "Especially for lithium battery users, it can reduce the accident rate of lithium battery thermal runaway, reduce disaster losses and save operation and maintenance costs."

  The data shows that since March 2019, the achievements of this project have accumulated over 1 billion yuan in economic benefits, and produced a wide range of social benefits, playing a role in serving major and key national projects.