Battery pack
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- LG ENERGY SOLUTION LTD
- Filing Date
- 2024-12-09
- Publication Date
- 2026-06-02
AI Technical Summary
Secondary batteries are vulnerable to thermal events, which can lead to chain reactions causing accidents such as fires and explosions, especially in densely packed battery modules and packs used in electric vehicles, necessitating improved thermal safety measures.
A battery pack design with internal flow paths, partition walls, and injection holes that allow direct injection of a cooling fluid into specific locations during thermal events, using caps that melt to open and seal injection holes, maintaining high pressure within the system.
Enhances thermal safety by suppressing heat propagation and acting as a fire extinguisher, improving cooling efficiency and maintaining high pressure for effective fluid injection.
Smart Images

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