电极组件及其制造方法、电池单体、电池和用电装置

By wrapping the electrode edges with two layers of diaphragms and using a 'Z+U' shaped stacking method, the problems of low production efficiency and short-circuit risk in stacked batteries have been solved, thus improving both safety and production efficiency.

CN116648808BActive Publication Date: 2026-07-17CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
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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 cells have low production efficiency and pose a risk of short circuits due to foreign objects on the electrode sheets, which affects safety.

Method used

The electrode sheet without tabs is wrapped with two layers of diaphragm and then bonded to the electrode sheet by hot pressing or bonding. At the same time, the electrode sheet is folded and stacked in a 'Z+U' shape to reduce cutting steps and improve production efficiency.

Benefits of technology

It effectively reduces the risk of short circuits, improves battery safety and production efficiency, avoids lithium-ion transport blockage and lithium plating risks, and enhances the overall performance of the battery.

✦ 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；第一隔膜；第二隔膜，第二隔膜和第一隔膜位于第一极片的沿厚度方向的相对两侧，第一隔膜和第二隔膜均翻折并包覆第一极片的未设置极耳的边缘。基于此，可有效提升电池的安全性能。
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