Briefly describe the impact of over-discharge of lithium battery packs

1. After the battery has discharged the internally stored power, after the voltage reaches a certain value, continuous discharge will cause over-discharge, usually according to the discharge current to determine the discharge cut-off voltage; 2. 2C-2C discharge is generally set to 1.0V/piece, above 3C For example, 5C or 10C discharge is set to 0.8V/pc; 3. Overdischarge of lithium battery pack may bring catastrophic consequences to the battery, especially large current overdischarge, or repeated overdischarge will have a greater impact on the battery. 4. Generally speaking, over-discharge of a high-temperature battery will increase the internal pressure of the battery and destroy the reversibility of the positive and negative active materials. Even if it is charged, it can only be partially restored, and the capacity will be clearly attenuated. From the influence of self-discharge on lithium battery packs, self-discharge can be divided into two types: self-discharge in which the loss capacity can be reversibly compensated; and self-discharge in which the loss capacity cannot be reversibly compensated. The more the lithium battery pack is discharged, the greater the loss of the battery. Lithium battery packs are best in the middle state of power, in which case the battery life is the longest. After the lithium battery has discharged the internally stored power, after the voltage reaches a certain value, continuous discharge will cause overdischarge. The discharge cut-off voltage is usually determined according to the discharge current. The 0.2C-2C discharge is generally set to 1.0V/piece, and the discharge above 3C, such as 5C or 10C, is set to 0.8V/piece. Over-discharge of the battery may bring catastrophic consequences to the battery. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Does too high and too low battery status affect the life of lithium batteries?