SEALED BATTERY
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- PANASONIC ENERGY CO LTD
- Filing Date
- 2020-11-19
- Publication Date
- 2026-06-10
AI Technical Summary
Existing sealed batteries require multiple components for the sealing member to function, increasing processing complexity and the risk of clogging due to the small exhaust hole formed by fracturing, which affects the current cut-off and gas exhaust functions.
A vent member with an annular or C-shaped first easy fracture part and a second easy fracture part with a smaller inner area, where the second fracture part fractures at a lower pressure than the first, reducing the number of components and enhancing the current cut-off and gas exhaust functions.
The solution allows for a reduced number of components, simplifying processing and ensuring stable current cut-off and effective gas exhaust without clogging, thereby improving safety and reducing manufacturing costs.