Why do Home Lithium batteries self-discharge? - page 1
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Why do Home Lithium batteries self-discharge?

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Aydan

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Why do Home Lithium batteries self-discharge?
« on: April 25, 2022, 10:47:42 AM »
The existence of self-discharge reaction of home lithium batteries not only leads to the reduction of the battery capacity, but also seriously affects the battery configuration and cycle life. The self-discharge rate of lithium-ion batteries is generally 2% to 5% per month, but the self-discharge reaction of lithium-ion batteries is inevitable, and its existence not only leads to the reduction of the battery's capacity, but also seriously affects the battery's configuration and cycle life. The self-discharge rate of lithium-ion batteries is generally 2% to 5% per month, which can fully meet the requirements of the use of a single battery.

The self-discharge phenomenon of lithium batteries is the phenomenon of spontaneous loss of capacity when the battery is in open-circuit shelving, also known as charge retention capacity. Self-discharge can be generally divided into two types: reversible self-discharge and irreversible self-discharge. The reversible self-discharge is the one where the lost capacity can be reversibly compensated, and its principle is similar to the normal discharge reaction of the battery. The self-discharge that cannot be compensated for the loss of capacity is irreversible self-discharge, which is mainly due to the irreversible reaction inside the battery, including the reaction between the positive electrode and the electrolyte, the reaction between the negative electrode and the electrolyte, the reaction caused by impurities in the electrolyte, and the irreversible reaction caused by the micro-short circuit caused by the impurities carried when it is made.

Data from BSLATT home lithium battery

 

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