Battery cell and battery module
By using mica-based cell covers and upper insulating components in battery cells and modules, the problem of fragment short circuits during battery thermal runaway is solved, improving battery safety and stability and ensuring effective fire extinguishing by fire extinguishing agents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2026-03-27
AI Technical Summary
In the event of thermal runaway, existing battery cells and modules are prone to short circuits caused by fragments, which can lead to the spread of fire. Furthermore, fire extinguishing agents are difficult to effectively reach the fire source, affecting safety and stability.
The monolithic cover and upper insulating component, made of mica material, cover the joint and venting parts of the electrode assembly to prevent debris from splashing out, and limit heat transfer through layered insulating material. Combined with the bracket and cover, the busbar is protected to prevent short circuits.
It effectively prevents internal debris from splashing out of battery cells, reduces the risk of short circuits, improves the safety and stability of battery modules, ensures that the extinguishing agent can effectively extinguish fires, and prevents the fire from spreading.
Smart Images
Figure CN121748735A_ABST