汇流模块的成型模具、汇流排及复合储能电池

By casting and welding the positive and negative busbars on both sides of the cell, combined with the molding die and cooling pipe, the problems of uneven current distribution and poor welding precision in traditional batteries are solved, achieving more uniform current distribution and higher battery performance.

CN121082870BActive Publication Date: 2026-07-17CHAOWEI POWER GROUP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHAOWEI POWER GROUP CO LTD
Filing Date
2024-06-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In traditional batteries, the positive and negative busbars are connected to the tabs on one side of the battery by welding, which results in uneven current distribution and poor welding precision and uniformity.

Method used

A molding die is used to cast and weld the positive or negative busbars on both sides of the battery cell. The molding grooves and protrusions form a grid-like busbar, which is cooled by cooling pipes. This ensures that the positive and negative busbars are set up separately, and the current transmission path is optimized by conductive grids and transverse grids.

Benefits of technology

It avoids accidental short circuits due to contact between positive and negative electrodes, optimizes current distribution, reduces internal cell resistance, improves battery performance and lifespan, reduces cost per kilowatt-hour, and improves the uniformity and stability of current collection.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明的实施例涉及一种汇流模块的成型模具、汇流排及复合储能电池,属于蓄电池成型技术领域。成型模具包括:模具本体和冷却管。模具本体的表面形成有成型凹槽,成型凹槽与电芯的尺寸相匹配;成型凹槽用于容纳铸焊合金熔液;模具本体的内部形成有冷却腔;冷却管连接于模具本体,用于向冷却腔输送冷却流体,使成型凹槽内的铸焊合金熔液冷却并凝固于电芯的一侧,形成正极汇流排或负极汇流排。本发明的成型模具用于在电芯两侧分别铸焊正、负极汇流排,使得正极汇流排和负极汇流排分开设置在电芯两侧,避免了正负极意外接触而短路的问题,优化了正、负极汇流排的布局,有助于更均匀地分配电流以及减少电芯内部的电阻,从而提高电池性能和寿命。
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