Battery pack and method for manufacturing a battery pack

The battery pack design addresses manufacturability and heat dissipation challenges by using an adhesive retainer and plastic material to securely fasten cells, enhancing thermal conductivity and reducing thermal resistance.

JP7864550B2Active Publication Date: 2026-05-25KK TOSHIBA
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
KK TOSHIBA
Filing Date
2022-05-25
Publication Date
2026-05-25

AI Technical Summary

Technical Problem

Conventional battery packs face challenges in improving manufacturability while achieving effective battery cooling and heat dissipation, with design considerations like increased strength loss around counterbored holes and thermal resistance due to protruding screws, leading to larger and heavier packs.

Method used

A battery pack design featuring a resin case with a metal plate and insulating layer, using an adhesive retainer and plastic material to securely fasten cells, enhancing thermal conductivity and reducing thermal resistance.

Benefits of technology

The design improves manufacturability and maintains efficient heat dissipation performance by minimizing thermal resistance and pack size, while ensuring secure cell fixation.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide a battery pack structure which enables improvement of manufacturability and achieves cooling and heat radiation performance of a battery.SOLUTION: A battery pack 1 includes: a resin case 5 which houses cells 12 arranged parallel to each other with a separator 13 sandwiched between the cells 12; a metallic plate 21 having an upper surface facing a bottom plate of the resin case 5 and bottom surfaces of the cells 12; an insulator layer 214 disposed on the metallic plate 21; an adhesion retaining agent 47 which bonds the bottom surfaces of the cells 12 to the bottom plate 55 of the resin case 5; an adhesive 49 which bonds the bottom plate 55 of the resin case 5 to the insulator layer 214; and plastic materials 41 each of which is housed in a frame hole 554, which is formed penetrating through the bottom plate 55 of the resin case 5, and closely contacts with the bottom surface of the cell 12 and the insulator layer 214, compressed between the bottom surface of the cell 12 and the insulator layer 214.SELECTED DRAWING: Figure 8
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