Electrochemical device and electronic device comprising the same
By adjusting the parameters of the negative electrode current collector and active materials, as well as the electrolyte composition, the structure of the lithium-ion battery was optimized, solving the problem of poor high-temperature storage performance and achieving a more stable high-temperature storage effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NINGDE AMPEREX TECHNOLOGY LTD
- Filing Date
- 2022-08-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing lithium-ion batteries suffer significant performance degradation when stored at temperatures above 80°C. Improving the high-temperature storage performance of electrochemical devices has become an urgent technical problem to be solved.
By adjusting the length-to-width ratio (L/W) of the negative electrode current collector and the R value of the negative electrode active material, combined with appropriate conductivity, areal density, compaction density and electrolyte composition, the structure and composition of the electrochemical device can be optimized to improve its high-temperature storage performance.
It effectively alleviates the gas generation phenomenon of electrolyte reaction, reduces the expansion risk of electrochemical devices, and improves their storage performance at high temperatures.
Smart Images
Figure CN122417833A_ABST