电极组件及其制造方法、电池单体、电池和用电装置

By using the "Z+U" shaped stacking method, the problems of low production efficiency and poor safety of stacked batteries have been solved, achieving both high-efficiency production and improved safety performance.

CN116745926BActive Publication Date: 2026-07-17CONTEMPORARY AMPEREX TECHNOLOGY CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Filing Date
2021-11-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Stacked batteries have low production efficiency and are susceptible to short circuits and lithium plating, which affect their development and safety performance.

Method used

The electrode adopts a "Z+U" shaped stacking method, in which the first electrode is folded back and forth along the first direction and the second electrode is folded once along the second direction to form an alternating stacking structure, which achieves efficient heat dissipation between the electrode assembly and the shell, preventing damage to the electrode tabs and short circuits.

Benefits of technology

It improves the production efficiency of stacked batteries, reduces the risk of short circuits, improves heat dissipation and safety, and prevents lithium plating.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请涉及电池领域,具体涉及一种电极组件及其制造方法、电池单体、电池和用电装置。其中,电极组件包括:第一极片,沿第一方向进行往复折叠,使得第一极片包括依次连接并堆叠的多片第一叠片;和第二极片,与第一极片极性相反,并沿第二方向进行单次折叠,使得第二极片包括彼此连接的两片第二叠片,第二方向与第一方向垂直或平行,第二叠片与第一叠片依次交替堆叠。基于此,可有效提升叠片电池的生产效率。
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