Battery cells, batteries and electrical devices
CN122139260APending Publication Date: 2026-06-02CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2024-02-04
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
The existing battery cells have shortcomings in circulation performance and structural strength, resulting in heat accumulation, temperature rise and structural deformation, affecting the reliability and life of the battery.
Method used
By optimizing the appearance design of the battery cell, the spacing between the first and second shell walls is set to D1 mm, and the outer surface area S of the second shell wall is set to 36 to 500 times the square of D1 to improve heat dissipation efficiency and structural strength.
Benefits of technology
It achieves good heat dissipation efficiency and structural strength of the battery cell, reduces the temperature rise during the charging and discharging process, extends the cycle life, and improves the reliability of the battery.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122139260A_ABST
Abstract
This application discloses a battery cell, a battery, and an electrical device. The battery cell includes a casing and an electrode assembly. The casing includes a first casing wall and a second casing wall disposed opposite each other along a first direction, wherein the area of the second outer surface of the second casing wall is less than or equal to the area of the first outer surface of the first casing wall. The electrode assembly is housed within the casing and includes a main body and a first electrode tab. The main body is located between the first casing wall and the second casing wall in the first direction, and the first electrode tab extends from at least one end of the main body along a second direction, which intersects the first direction. The distance between the first casing wall and the second casing wall along the first direction is D1 mm, and the area of the second outer surface of the second casing wall is S mm. 2 S is 36 to 500 times the square of D1.
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