METHOD FOR PRODUCING A SECONDARY BATTERY WITH SEGMENTED ELECTROLYTE INJECTION
Patent Information
- Application Number
- DE602022037695
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-11-02
- Filing Date
- 2022-10-13
- Publication Date
- 2026-05-27
- Estimated Expiration
- 2042-10-13
AI Technical Summary
Existing methods struggle to quantitatively inject large amounts of electrolyte greater than or equal to 200g into secondary batteries in a short time without causing internal/external contamination or reducing production efficiency.
A manufacturing method involving split injection of electrolyte, where the second injection amount is adjusted based on the average and standard deviation of the first injection, using a pump-type injection apparatus with syringes to control the electrolyte amount accurately, ensuring the total injection time is less than 3 seconds.
This method allows for precise and rapid electrolyte injection, reducing defect rates to 15ppm or less and improving battery performance by minimizing contamination and increasing production efficiency.