一种轴向堆叠圆柱电芯模组的连接支架及电连接结构

By employing a connecting bracket and a pressure relief channel plate in the axially stacked cylindrical cell module, the problems of uneven current distribution and thermal runaway pressure relief are solved, achieving the effects of uniform current distribution and safe pressure relief.

CN121507281BActive Publication Date: 2026-07-17YANTAI LIHUA ELECTRIC POWER TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YANTAI LIHUA ELECTRIC POWER TECHNOLOGY CO LTD
Filing Date
2025-11-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In axially stacked cylindrical battery cell modules, the connection between the battery cell and the spring is unstable, resulting in uneven current distribution, spring wear and insufficient current carrying capacity, and inability to effectively relieve pressure in case of thermal runaway, posing a safety hazard.

Method used

The design incorporates a connecting bracket, including a corrugated electrical connection metal sheet and a pressure relief channel plate, combined with an annular metal foam material and insulating pads, to ensure uniform current distribution and provide overcurrent protection and pressure relief channels.

Benefits of technology

It achieves uniform current distribution, prevents cell aging, improves current carrying capacity, and effectively relieves pressure in case of thermal runaway, thus avoiding safety risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及圆柱电芯模组领域,具体是一种轴向堆叠圆柱电芯模组的连接支架及电连接结构,用来解决现有技术中上下两层电芯依靠弹簧进行串联,存在接触面积不稳定、弹簧过细无法保证高效充放电等问题,包括圆柱电芯、连接支架和泄压通道板,所述圆柱电芯分为上层圆柱电芯和下层圆柱电芯,所述连接支架位于上层圆柱电芯和下层圆柱电芯之间,所述连接支架设有四排安装孔,所述安装孔内设有圆环,所述上层圆柱电芯和下层圆柱电芯设在安装孔内,所述连接支架设有泄压槽,所述泄压槽设在四排安装孔的中央,所述安装孔侧边设有泄压孔,其中中间两排安装孔的泄压孔与泄压槽相连通,所述泄压通道板安装在泄压槽上,所述泄压通道板设有与泄压孔对应的凹槽。
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