Battery formation method and device, battery and production method, system and device thereof
During the formation process of lithium-ion batteries, the target film forming voltage determined by the differential voltage-voltage change curve is used to extend the film forming reaction time of the solid electrolyte interface film, and the problem of poor film forming quality of the battery is solved and the improvement of battery performance and life is achieved.
Patent Information
- Application Number
- CN202510222683.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2045-02-27
AI Technical Summary
During the first charging process of lithium-ion batteries, the film formation quality of the solid electrolyte interface film is poor, resulting in oxidative decomposition and re-repairing processes during recycling, affecting the performance and life of the battery.
In the battery formation method, the battery is charged and constant voltage charging using the target film forming voltage determined by the differential voltage-voltage change curve, and the film forming reaction time of the solid electrolyte interface film is extended to improve its film forming quality.
It effectively improves the film formation quality of the solid electrolyte interface film, extends the service life of the battery, and improves the performance of the battery.