Power storage device, lid element, outer package film, and ignition prevention element
JPWO2026023581A1Pending Publication Date: 2026-01-29
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Filing Date
- 2025-07-18
- Publication Date
- 2026-01-29
AI Technical Summary
Technical Problem
Existing electricity storage devices face issues with sealing performance degradation due to heat generated by the electrode assembly, which can lead to damage and potential ignition.
Method used
Incorporation of an exterior film and lid with integrated heat absorption and fire extinguishing functions, along with a fire prevention element positioned between the electrode body and the exterior film or lid, to maintain sealing integrity and prevent ignition.
Benefits of technology
The solution ensures the electrode body remains sealed even at high temperatures, preventing damage and ignition, thereby enhancing the safety and reliability of the electricity storage device.
✦ Generated by Eureka AI based on patent content.
Abstract
Provided is a power storage device comprising an electrode body and an outer packaging body in which the electrode body is sealed. The outer packaging body comprises: an outer packaging film that wraps the electrode body; and a lid member that seals the electrode body and the outer packaging film. The power storage device is provided with an ignition prevention element that has at least one of a heat absorption function and a fire extinguishing function.
Need to check novelty before this filing date? Find Prior Art