How is the high-temperature performance of lithium-ion battery?

I can't find the answer to this question at present. The usual lithium-ion battery is carved with anti-explosion valve, because the internal pressure of battery is too large at high temperature. At that time, the explosion-proof valve works. Firstly, the explosion-proof valve will open and make the pressure release. As for safety test of the battery, it also involves high temperature processes, such as hot box what 150℃, 800℃ iron plate and ejection in high temperature. No explosion will be qualified. However, explosion-proof valve may not open on time. Therefore, there is a saying that it won't be qualified unless there is no explosion within a certain time.

The general lithium-ion battery under the high temperature test, there are 130 degrees, 150 degrees, 800 degrees, etc., but under normal circumstances, do not contact with such a high temperature in usual life, but sometimes we see or excessive use of electric battery charging damage. Recent hot intelligent device, in particular, bending the built-in battery, has 48 process safety inspection alone, including high temperature project in bend into a battery and more than 50 degrees, in daily life, such temperature, bend is unlikely to come into contact with the battery

Search for bending battery in Baidu, you can only find one energy company, which illustrates the basic parameters of polymer lithium battery (bending cells of smart devices). It is discussed in the the high temperature test, we only know that bending cell process is very complex, and it said that this special batteries battery may eradicate the possibility of high temperature damage and explosion. We know little about new bending cell, and find that its information is negligible. There is only some news. If you search for bend battery, you can only find one company that is work for it.

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