一种电池极片模切工装

By combining an EVA cotton layer and a high-hardness PET mold layer, the problems of stress concentration and inaccurate positioning during the die-cutting of battery electrodes are solved, achieving high-precision die-cutting and efficient production, thus improving production efficiency and yield.

CN224509936UActive Publication Date: 2026-07-17XIAMEN XINSHUNENG ELECTRIC POWER TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN XINSHUNENG ELECTRIC POWER TECH CO LTD
Filing Date
2025-08-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional battery electrode die-cutting fixtures suffer from problems such as stress concentration leading to burrs, tearing, inaccurate positioning, long replacement time, die wear, and electrode adhesion, which affect production efficiency and yield.

Method used

The structure combines an EVA cotton layer and a high-hardness PET mold layer to form a rigid dispersion and elastic buffer. Combined with the positioning area and anti-stick coating, it achieves uniform stress release and precise positioning, adapting to electrode sheets of different specifications.

Benefits of technology

Reduce burr rate, improve die-cutting accuracy and production efficiency, extend die life, reduce maintenance costs, and improve electrode sheet picking efficiency and yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型公开了一种电池极片模切工装,包括承载组件、EVA棉层、高硬度PET模层以及定位区;所述EVA棉层铺设于所述承载组件上;所述高硬度PET模层铺设于所述EVA棉层远离所述承载组件的一侧;所述定位区设置于所述高硬度PET模层远离所述EVA棉层的一侧,用于放置待加工正极片;所述高硬度PET模层用于在模切过程中提升刀模边缘区域的强度,以实现待加工正极片与刀模之间应力的均匀释放。通过高硬度PET模层与EVA棉层的协同作用,形成刚性分散和弹性缓冲结构,有效分散模切应力,避免刀模边缘应力集中,使极片切口平整,毛刺率降低,可拆卸定位凸条可快速适配不同尺寸宽度极片,切换时间缩短,大幅提升通用性。
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