"Don't afford fire" battery frequency, the power lithium battery company is doing a big industry or "inner volume"?

　　Author ：Iflowpower – Portable Power Station Supplier

Security issues have always been the core pain in the development of new energy automotive industries. To solve this pain point, major cars and powered lithium-ion battery companies are actively. Previously, Great Wall Motors brought a heavy egg on the 8th Tech Festival: the big-ranking battery launched "can't affection".

The reporter learned that many companies have launched a variety of power lithium-ion batteries with "can't afford fire", such as BYD's blade battery, Ningde Times, "Never Fire" battery, Guangzhou Automobile Ean's magazine battery, Ruipi energy does not afford the fire battery, etc. When the "battery new product" at the conference is generally in the public's vision, when the company is doing a big industry or gradually "inner volume" in the company. The Great Wall Auto "Zero-Heat Loss" 2022 comprehensively applied the deputy general manager of Great Wall Automobile R & D, said that the Great Wall Motor uses "Daxie to treat water, it is blocked as" as concert, successfully developed "zero heat loss "The" Daxie Battery "can effectively solve the fire, explosion problem after the thermal loss of different chemical system batteries.

The reporter learned that the basic principle of this security technology is that after the thermal out of control of the single battery, one hand takes effective measures to prevent the adjacent electrical cells from continuously occurring thermal out-of control, and the other side is designed in the battery pack, exported The flue gas that appears in thermal out of control, the temperature of the flue gas flow is below 100 degrees. After using this technology, it can effectively prevent the thermal spread caused by the single battery core heat loss, thereby achieving a good effect that does not afford fire. Dong Yang, a vice president of the auto industry association, secretarial director, secretarial, said that "Dagu battery technology is not a new technology of a battery, but a safe technology for the design of the vehicle battery pack.

"In his view," this new technology is simple and easy to effectively prevent the fire explosion caused by the battery heat. Daxie battery will be fully applied in 2022, as the next generation of new power lithium-ion batteries, equipped with new energy series models under Great Wall Auto. It is worth noting that Great Wall Cars announced to the whole society to open "Daxie Battery" dozens of patents, which is to announce the "Can't afford fire" in many companies, the first announcement technology details.

company of. "If you don't affection, you don't explode" fast into new product standards, all companies are in various Xiqong new energy car independent researchers Cao Guangping told reporters that the current electric vehicle lithium-ion battery is important to three yuan lithium-ion batteries and lithium iron phosphate ion batteries. Two technical routes, lithium lithium iron phosphate from the material system is safer.

He said that the two types of batteries are now fully competitive in the industrial application, so you can compete in the external system outside the battery. At the Shanghai Auto Show in April, the dynamic lithium-ion battery company "Black Horse"-Ruilo Energy held the new product conference, announced the introduction of a new-generation phosphate ion battery. According to the official statement, this battery has achieved no smoke, no fire, not exploded.

On March 10, Guangqi Egyan official announced a new generation of power lithium-ion battery safety technology - magazine battery system security technology. This system has 4 core technologies: ultra-high heat-resistant stable battery, superior heat-insulation battery safety cabin, three-dimensional cooling cooling system, fifth generation battery management system. Battery technology can be applied to cell packages of lithium iron phosphate and three-dimensional lithium.

It is worth noting that the magazine battery system security technology has passed the whole package acupuncture test. It is the industry's first three-yuan lithium-ion battery. In December last year, Xinwangda announced the battery system solution for "smoke, not fire".

In November last year, it was officially launched 100KWH battery pack. The battery pack is equipped with Ningde Times nickel 55 three-yuan battery and the latest CTP group technology, which can achieve "no heat spread", that is, Ningde Times beforewards. "Don't afford fire" battery.

Previously, BYD announced the blade battery, showing the safety stability of lithium iron phosphate ion battery by acupuncture test. It can be seen from the sorting. Since last year, Ningde Times and BYD have a "acupuncture experiment" to "boil", "can't affection" battery has become a standard for companies to launch new products.

In response to this phenomenon, some industry people say that there is no absolute power lithium-ion battery, and the company will focus on "can't affection for fire", and how many propaganda and perseverance. my country's automobile power lithium-ion battery industry Innovation Alliance, Ma Xiaoli said in an interview with "my country Automobile News" report that each company will definitely want to obtain industry concerns when the battery is announced. From the perspective of industrial development, they are At the same time, the technical achievements showing the demonstration can also play the industry to stimulate.

This can make the industry to file a spirit, excitation the power lithium-ion battery industry to see new perspectives, and close the development of technology routes to the safer direction. Pay more attention to the battery safety technology company to do a big new energy automotive industry. In fact, the current pneumatic hotspots of the new product of lithium-ion batteries are also surely reflected in the strive of industry supervision.

On January 1 this year, the "three strong standards" organized by the Ministry of Industry and Information Technology were approved by the State Market Supervision Administration, the National Standardization Management Committee, has begun to implement. In response to the vehicle power lithium ion battery, "Electric Motor Power Battery Safety Requirements" added battery system thermal diffusion test, requiring battery cells after heat loss, battery system does not affont fire within 5 minutes, reserved for the occupant Safety escape time. Therefore, safety this core pain is more important to the company.

The reporter learned that three-dimensional lithium-ion batteries and lithium-phosphate ion batteries, there are three levels of safety technology development. The first level is the adjustment of the internal material body of the battery. That is, the choice of iron lithium material system, the ratio of the proportion of the ternary system, including various additives and electrolyte modification, etc.

, the second level is a combined safety design such as a battery, module, battery pack, including battery management BMS And battery thermal management design, the third level is the battery in the car and combined with the charging method, such as reserved battery safety surplus capacity, battery charge and discharge safety warning, battery waterproof and anti-collision safety design, battery chassis Chemize. Cao Guangping mentioned that "my country's new energy automotive industry has attached great importance to the safety, quality and technical level of products and components in the process of driving to the market by policy driver. This is the market's full competition.

Typical representative. "Ma Xiaoli told reporters that" the development of the dynamic lithium-ion battery industry has moved forward. Every company participating in it has made your own contribution to the development of the entire industry throughout the industry.

"In addition, while security issues are greatly concerned, it should be noted that in addition to security issues, the power lithium-ion battery is also facing pain points such as endless mileage, battery life, low temperature performance. On the basis of improving the safety level, you can do this in synchronization, in order to truly promote the industry further. .