Electric vehicle accident frequent battery management system standard will be introduced

Electric vehicle accident frequent battery management system standard will be introduced

Beijing time August 16th, Tsla electric vehicles once again happen to a self-ignition accident. TSLA has been continuously from the combustion accident in recent years, and the industry is generally considered that the battery is too bad..

Tsla electric cars is a typical representative of the three-yuan material battery application, and whether the safety performance has been questioned.. TSLA electric cars despite greater battery life, it often means that the battery capacity means low safety factor.

“Electric car battery life is a threshold at 400 kilometers.. “Dong Yang, executive vice president of my country Automobile Industry Association, participated in the electric car hundreds of people.

. Domestic power lithium batteries have been present in the phosphate ion battery and the three-yuan material battery route. The core of the debate is actually in the first place, or the two have no better combination.

“There are currently multi-party debates on how to choose electric vehicle technology routes, but it also looks at market development status and demand.. Dong Yang said.

According to statistics from the Ministry of Industry and Information Technology, since 2009, my country’s new energy vehicle safety accident has a total of 31 cases. Among them, 17 have occurred since 2015. There are 4 accidents in this 17 accidents, and 6 are related components.

Accidents There are 2, which is caused by the defect of charging system. Of course, 5 are caused by violations or improper use..

As of the end of 2015, the accident rate reached 0.17 ‰, and the average world has doubled..

Kirk, Vice President of the Charily Group Research, said: “TSLA uses a loose lithium-ion battery, and many industries are basically recognized by the pole representative of the battery, but my country has different countries, in order to reduce the initial cost in my country. In order to reduce the initial cost, try to use Smaller batteries and over-consuming battery life. Therefore, for the power lithium battery company, my country’s market is the world’s most challenging market.

. “Battery Management System Standards will be introduced in my country’s battery system, lithium iron phosphate is relatively safe, but the energy density is low, which has gradually been replaced by high-energy density of three-yuan material batteries, but the three-yuan material battery safety needs to be tested..

According to the data of the test institution, in the existing power lithium battery system, the risk of monomer batteries is generally existent, and low-risk includes leakage, deformation, exhaust, high risk including spark, explosion, etc.. If the single battery is thermal out of control, the three-dimensional material battery is more likely to have sparks than lithium iron phosphate materials.

. Safety issues of three-yuan material battery, not to solve. Chen Liquan, Chinese Academy of Engineering, said: “The liquid electrolyte that does not contain flammable in the solid state can greatly improve the safety of the battery.

This is the only opportunity of my country’s lithium-ion battery. If this opportunity is wrong, the lithium sulfur battery is going to study the lithium sulfur battery. The battery will lose the opportunity.

“At present, there have been electric vehicles produced by French Bellore, which have been produced by French Bellore, and the battery is lithium phosphate to do positive electrodes. Metal lithium is a negative electrode, the middle is a solid battery, called PEO. But in 2014, my country has advanced related research work, and has not made breakthrough progress.

. Chen Liquan said: “It is recommended to support the research, development and industrialization of solid-state batteries..

I hope to achieve industrialization within five years.. “Battery monomer is one of the factors affecting electric vehicle safety; the other party is the battery system, which may have no uniform plan due to the lack of rationality of its overall design.

. According to relevant institutional investigations, the top 10 manufacturers in the field of new energy parts systems, with regard to the gap size between the battery’s template and battery packs, there is no uniform standard and requirements, high-voltage electrical components such as connector, cable, and Motor controller and other system security protection are still lacking reasonable, unified planning. Li Dong, Director, Department of Equipment Industry, Ministry of Industry and Information Technology, said: “The country has organized an electric vehicle remote monitoring standard, and electric passenger car safety conditions will be announced.

Battery management system technical conditions, power lithium battery encoding, specifications, etc. are being prepared, revised, and also issued as soon as possible..

And at the same time, we are taking the revision of new energy automotive production companies and product access rules, and proposes to improve the company’s research and development capabilities and production conditions, improve performance and safety requirements.. “Multi-line and more insurance? Public transport system and new energy passenger cars are always important entry points for the government to promote new energy automotive products.

As of the end of 2015, the national new energy bus vehicle reached 86,000, up 136% year-on-year, of which 36,000 pure electric vehicles were up to 3.9% year-on-year, and more than 7,000 pure electric taxi were up to 72% year-on-year. Big.

Among them, lithium iron phosphate and three-dimensional lithium ion battery is an important battery route.. On January 14 this year, the Ministry of Industry and Information Technology announced the “New Energy Automobile Promotion Application Recommended Vehicle Catalog”, which did not see the three-yuan electric commercial passenger car, the model that did not enter the “directory” will not be able to enjoy government subsidies, and the policy-free policy discount.

Some industry insiders said that this has a great impact on the enthusiasm of the car factory.. Developing high-energy density dynamic lithium battery systems has become an international mainstream trend.

According to statistics, the ternary material battery currently accounts for more than 80% of the global lithium-ion battery market, and high-energy density is one of the core technical indicators of my country’s 13th Five-Year Planning Power Lithium Battery.. This is also the current industrialized electric car battery life, and there is still no inevitable result of market demand.

. In this regard, Kirk said: “We use a number of technical routes in parallel, including the material system, including the specifications and model of the product..

“On the basis of ensuring safety, improve the life of the life is the core pursuit of the power lithium battery.. Zheng Shixiong, deputy president of Samsung SDI Co.

, Ltd., said that Samsung SDI is developing a new generation of battery-ended mileage requirements by exploring potential new generation materials..

In fact, South Korea Samsung SDI and LG, etc.. However, this does not mean that the future will definitely be the three-yuan lithium-ion battery, the battery industry has always been a generation of materials, and the entire industry has not stopped the excavation of new materials and new technologies, higher energy density.

And safer performance is always two major propositions that the company tried to balance. .

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