The global fire is one after another, the ternary lithium battery is coming?

by:CTECHi     2021-08-17

Recently, due to the potential fire hazard of batteries, Hyundai Motor recently announced the second large-scale recall plan for its KONA electric vehicles. This recall involves all KONA electric vehicles sold in Korea, which is expected to reach about 33,000. Completely replace its LG Chem power battery.

One stone stirs up a thousand waves of waves, to torture the safety of ternary power lithium batteries

Recycling tens of thousands of batteries at a time , It is definitely the first time in the industry. The cost of the battery accounts for about 30% of the entire vehicle. The cost of this recovery is as high as 5.8 billion yuan, which shows the seriousness of the problem. So why LG, as the world's leading supplier of power batteries, makes such low-level mistakes in product quality? Has Hyundai Motor also not undergone scientific and rigorous quality verification?

Aberdeen’s foundation is not strong enough to make up for it.

In life, we are faced with various trade-offs. The same is true for selection.

Power batteries are facing a variety of technical routes. Among them, ternary lithium batteries have high energy density, poor safety, and obvious advantages and disadvantages. In order to pursue higher cruising range, enhance products Competitiveness, various car companies have started the endurance competition, and the ternary lithium battery is naturally more favored. The ternary battery is prone to thermal runaway due to its material characteristics. Subsequent “buildings” built on the basis of a weak foundation. Although certain safety remedial measures have been taken, they are only remedies and cannot eradicate hidden dangers. This is why it is equipped with The root cause of ternary lithium battery electric vehicle accidents. It is foreseeable that with the accumulation of unsafe factors in the use of power batteries and the increase in the number of power batteries, more and more power battery accidents will occur, and the possibility of causing serious loss of life and property cannot be ruled out.

Therefore, in the face of materials and safety features that are difficult to 'support' ternary lithium batteries, LG Chem and Hyundai Motors can do very limited, if not fundamentally I am afraid that the follow-up work will only be in vain.

Everything seems to have reached a critical point, and everyone has to return to the crossroads.

Domestic recycling will inevitably return to the right path of safety.

As we all know, most of the new energy vehicles sold in China, such as Tesi La, Weilai, and Xiaopeng Automobile, because of the pursuit of battery life, most of them use high-nickel ternary lithium batteries with higher energy density but higher safety risks. Recently, ternary lithium battery accidents have occurred frequently, and the safety problems exposed have become more and more serious. The farce between car manufacturers and power battery suppliers has occurred from time to time, indicating that the large-scale recycling of domestic ternary lithium battery electric vehicles may not be far away. Where will these depots with heavy path dependence go?

Safety is the guarantee for the sustainable development of the power battery industry. For example, the technical route adopted by the domestic power battery manufacturer BYD is to creatively develop a blade battery architecture based on the safer lithium iron phosphate route, which not only complements the shortcomings of the low volume energy density of iron-lithium batteries, but also allows this The 'safety longboard' of the material itself is even more prominent. Its first Han brand equipped with a blade battery focuses on safety. Its sales have exceeded 10,000 for several months, and even broke the 200,000-plus medium and large C-class sedan that foreign brands dominate The monopoly situation shows strong and sustainable product competitiveness.

Based on safety, respecting life, and providing consumers with safe products, this is the original intention of the development of new energy vehicles and the right path for industrial development.

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