-Will overcharging lithium and lead-acid batteries cause explosions?

Will overcharging lithium and lead-acid batteries cause explosions?
author:enerbyte source:本站 click151 Release date: 2023-11-21 13:27:47
abstract:
1、 Lithium ion batteries can explode Lithium ion batteries pose a risk of explosion due to a process called thermal runaway in the internal reactions of the battery. Thermal runaway is an energy positive feedback cycle process: an increase in temperature causes the system t...

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1、 Lithium ion batteries can explode

Lithium ion batteries pose a risk of explosion due to a process called thermal runaway in the internal reactions of the battery. Thermal runaway is an energy positive feedback cycle process: an increase in temperature causes the system to heat up, which in turn causes the system to become hotter. Thermal runaway is a common phenomenon, which can occur in a large number of physical and chemical processes from concrete curing to stellar explosions.

2、 Lead acid batteries can also explode

Due to the abundance of chemical reactants, the new lead-acid battery has a higher terminal voltage and smaller internal resistance, while the old lead-acid battery has a lower terminal voltage and larger internal resistance. In the charging state, the charging voltage at both ends of the old lead-acid battery will be higher than the charging voltage at both ends of the new battery, resulting in the new lead-acid battery not being fully charged, while the old lead-acid battery has already been too high; In the discharge state, due to the larger capacity of the new lead-acid battery compared to the old battery, it leads to excessive discharge of the old battery, and even causes the old lead-acid battery to reverse polarity, causing the lead-acid battery to bulge and cause side effects. It will consume the electrical energy of new lead-acid batteries, and at the same time, it will cause voltage instability inside the appliance, and there is also a risk of overuse of old lead-acid batteries.

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