Battery device, electric device, and energy storage device
By optimizing the connection structure and heat dissipation design of the pouch battery cells, the problem of sealing failure of pouch battery cells was solved, thereby improving the energy density, reliability and cycle life of the battery device.
CN122393570APending Publication Date: 2026-07-14CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-14
AI Technical Summary
Technical Problem
The individual cells of pouch batteries are prone to sealing failure in battery devices, which reduces the reliability of the battery device.
Method used
By optimizing the connection structure of the individual pouch battery cells, including setting a large-area first connection part and appropriate spacing, combined with the design of thermally conductive materials and insulating components, heat accumulation is reduced, heat dissipation efficiency is enhanced, and the risk of seal failure is reduced.
Benefits of technology
It improves the energy density, reliability, and cycle life of the battery device, reduces the risk of seal failure, and enhances the overall strength and space utilization of the battery device.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122393570A_ABST
Abstract
The application provides a battery device, an electric device and an energy storage device. The battery device comprises a box body and a soft package battery cell. The box body comprises a support plate and a frame. A plurality of soft package battery cells are stacked in a first direction. The soft package battery cell comprises a first surface and a second surface, a plurality of first surfaces are oppositely arranged along the first direction, and the support plate is oppositely arranged with a plurality of second surfaces along a second direction. The soft package battery cell comprises a packaging bag, an electrode assembly, an electrode terminal and a first insulating piece, the electrode assembly is provided with a tab portion at the end thereof along a third direction, the electrode terminal is welded with the tab portion and forms a first connecting portion, the area of the first connecting portion is 20mm 2 to 60mm 2 , the first insulating piece surrounds the electrode terminal and is arranged between the electrode terminal and the packaging bag, the first insulating piece is sealingly connected with the packaging bag and forms a second connecting portion, and the minimum distance between the first connecting portion and the second connecting portion along the third direction is 2mm-7mm.
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