CYLINDRICAL BATTERY AND METHOD FOR PRODUCING SUCH A CYLINDRICAL BATTERY
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2020-11-30
- Publication Date
- 2026-04-01
AI Technical Summary
Conventional cylindrical batteries suffer from deformation and potential runaway due to electrode assembly expansion and thermal energy accumulation during charging/discharging, especially when high-capacity and high-output requirements are needed.
The cylindrical battery design incorporates electrically separated top cap assemblies with insulators and gas storage units to prevent deformation and enable rapid discharge of thermal energy, using insulators to move and protrude when pressure builds, allowing gas to be safely vented and potentially using fire extinguishing gases to prevent fires.
The design effectively prevents deformation and runaway by minimizing stress concentration and enabling rapid thermal energy discharge, enhancing safety and performance in high-capacity applications.