Answer: The internal pressure of a battery is the pressure formed by the gas generated during the charging and discharging process. It is mainly affected by factors such as the manufacturing process and structure of the battery material. Generally, the internal pressure of a battery is maintained at a normal level. In the case of overcharging or discharging, the internal pressure of the battery may increase. If the speed of the composite reaction is lower than that of the decomposition reaction, the gas produced cannot be consumed in time, which will cause an increase in the internal pressure of the battery
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