Why does the battery explode?

作者: zhushican 　发布: 2025-05-21　分类:彩绘知识　阅读: 192次　查看评论

 　　The vast majority of 18650 batteries are packaged in steel shells. Because the quality of the batteries is not maintained, the internal pressure will increase sharply when overcharged (moderate charging), and it will explode when the threshold value is exceeded.Problems such as short circuit, excessive temperature, or the battery being squeezed, deformed, or even pierced may cause the battery to explode.

 　　After 30 years of development, the preparation process of the 18650 battery has been very mature. In addition to the improvement of its function, its insurance is also very good.In order to avoid the generation of a sealed metal shell, the original 18650 battery would be equipped with a safety valve at the top. The safety valve is the standard configuration of every 18650 battery and it is also an important explosion-proof barrier.When the internal pressure of the battery is too high, the top safety valve will open the exhaust and reduce pressure to avoid explosion.

     However, when the safety valve is opened, the chemicals leaked from the battery will react chemically with the oxygen in the air under the premise of high temperature, and it is still possible to catch fire.In addition, the original local 18650 battery also came with a maintenance board, which had functions such as overcharge, over discharge and short circuit maintenance, and the insurance function was very high.

 　　The previous mobile power supply incidents were all caused by unscrupulous manufacturers using substandard 18650 batteries to save money, and even explosions caused by second-hand waste electricity.

     At present, the 18650 batteries produced by major battery manufacturers such as Panasonic, Sony, Samsung, etc. are actually very safe, and the utilization rate of the 18650 battery is very high. We may use it correctly during daily use and avoid short-circuiting, damage or excessive temperature of the battery. There is no need to worry about the battery exploding.

     We can't knock over a boatload of people with a bamboo pole, and use individual inferior products to characterize the insurance of 18650.

 　　Judgment: The regular quality and qualified 18650 battery is very safe and may be used freely.

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