-Why did lithium batteries explode?

Why did lithium batteries explode?
author:enerbyte source:本站 click348 Release date: 2023-07-27 13:57:12
abstract:
1. Excessive moisture content The water can react with the electrolyte in the lithium battery cell to produce gas. When charging, it can react with the generated lithium to generate Lithium oxide, which will cause the capacity loss of the battery cell and easily overcharge t...

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1. Excessive moisture content

The water can react with the electrolyte in the lithium battery cell to produce gas. When charging, it can react with the generated lithium to generate Lithium oxide, which will cause the capacity loss of the battery cell and easily overcharge the battery cell to generate gas. The decomposition voltage of the water is low and it is easy to decompose to generate gas when charging. When this series of generated gases will increase the internal pressure of the battery cell, and when the battery cell shell cannot bear, the lithium-ion battery will explode.

2. Internal short circuit

Due to the occurrence of internal short circuits, the battery cell discharges with high current, resulting in a large amount of heat and burning the diaphragm, resulting in even greater short circuits. This leads to high temperatures in the battery cell, causing the electrolyte to decompose into gas and causing excessive internal pressure. When the shell of the battery cell cannot withstand this pressure, the battery cell will explode.

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