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Is the power battery safe? Take a look at the second acupuncture test of the magazine battery

2021-08-04

In 2020, my country reported more than 72 electric vehicle fire incidents, and 38 models of 25 brands were involved. Obviously, battery safety is still an important issue in the development of new energy.

Judging from the cause of battery fire, foreign body puncture, external force collision, internal overheating and short circuit, battery overcharge and over-discharge, water ingress, etc. will cause lithium battery fire. Among them, the impact of foreign body puncture is particularly serious. This is also a problem faced by many car companies today. .

In May 2020, the Ministry of Industry and Information Technology clarified the technical requirements for electric vehicle power batteries, that is, after the battery cells are thermally out of control, the battery system will not fire or explode within 5 minutes. This has immediately become the main research direction of battery manufacturers and car companies.

So which step has today's battery safety achieved? Prior to this, BYD launched the blade battery and GAC Aian launched the magazine battery. Both acupuncture tests have achieved no smoke. On the morning of May 20th, GAC Aeon announced the more stringent second-pin test results for the magazine battery, and the performance of the magazine battery has improved. At the same time, the battery category tested this time is not the first ternary lithium battery, but another mainstream Lithium Iron Phosphate Battery.

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