Secondary battery
By adding carbon nanotubes, especially single-layer and multi-layer carbon nanotubes, to the positive electrode flux layer of secondary batteries, the problem of insufficient heat dissipation of the positive electrode is solved, the fast charging characteristics and electrolyte stability of the battery are improved, and it is suitable for long plate batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
- Filing Date
- 2024-12-13
- Publication Date
- 2026-07-17
AI Technical Summary
In existing rechargeable batteries, insufficient heat dissipation at the positive electrode during fast charging leads to electrolyte degradation, affecting fast charging characteristics, especially in the case of long electrode plates where the problem is more pronounced.
Adding carbon nanotubes, especially single-layer and multi-layer carbon nanotubes, to the positive electrode compound layer improves the heat dissipation of the positive electrode, and combined with the end face current collection structure, ensures that heat does not easily accumulate in the positive electrode.
It effectively improves the fast charging characteristics of secondary batteries, suppresses electrolyte degradation, especially in long plate batteries, and reduces resistance and temperature after fast charging.
Smart Images
Figure CN122422984A_ABST