Battery shell sheet, battery shell, power battery and battery pack
By installing an explosion-proof valve in the non-maximum end face area of the battery casing and equipping it with a removable protective plate, the problem of easy damage to the explosion-proof valve is solved, the safety and structural compactness of the battery are improved, and the risks caused by the opening of the explosion-proof valve are reduced.
CN224554448UActive Publication Date: 2026-07-24DRAGONFLY LAB (SHENZHEN) CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DRAGONFLY LAB (SHENZHEN) CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-24
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Figure CN224554448U_ABST
Abstract
The utility model relates to power battery technical field provides a battery shell piece, battery shell, power battery and battery pack, and this battery shell piece includes: shell piece body, explosion -proof valve and protection piece, shell piece body has at least four end face areas, explosion -proof valve is welded on the area non maximum end face area, at least one part of protection piece is pasted in the opening outside of explosion -proof valve, at least one of shell piece body and explosion -proof valve can detachable connection protection piece, the size of protection piece in length direction is L, the size of explosion -proof valve in length direction is L1, satisfies 0.6 <= L1 / L <= 0.85, the size of protection piece in width direction is D, the size of explosion -proof valve in width direction is D1, satisfies 0.5 <= D1 / D <= 0.85, the length direction of explosion -proof valve and the width direction of explosion -proof valve are parallel to the end face area of welding explosion -proof valve. The battery shell piece is used for improving the safety and sealed reliability of battery under abnormal working condition.
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