电池单体、电池及用电装置

By setting insulating components of varying thicknesses between the electrode assembly and the casing, the problems of electrode assembly tilting and wobbling were solved, improving the manufacturability and reliability of the battery cell, enhancing the strength of the insulating components, and improving the centering of the electrode assembly.

CN224519899UActive Publication Date: 2026-07-17CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Filing Date
2025-05-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

After the electrode assembly is installed in the casing, it is easy to tilt or shake, which can cause local stress damage to the electrode sheets and affect the reliability of the battery cell.

Method used

An insulating component of different thickness is provided between the electrode assembly and the housing, including a first insulating part and a second insulating part. The second insulating part is thicker than the first insulating part and is located on one side of the electrode assembly to locally enhance the strength and thickness of the insulating component.

Benefits of technology

It improves the manufacturability and reliability of individual battery cells, reduces the risk of electrode assembly misalignment, enhances the strength of insulation components, reduces stacking redundancy during casing, and improves the problem of poor centering.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请公开了一种电池单体、电池及用电装置,电池单体包括:外壳;电极组件,容纳于外壳内,电极组件包括主体部和极耳部,极耳部沿第一方向突出于主体部;绝缘件,容纳于外壳内,绝缘件设置于电极组件和外壳之间,绝缘件包括第一绝缘部和第二绝缘部,第二绝缘部的厚度大于第一绝缘部的厚度,其中,第二绝缘部位于所述电极组件在第二方向和 / 或第三方向上的一侧,第一方向、第二方向和第三方向两两垂直。本申请实施例的技术方案中,局部增大绝缘件的厚度和强度,使得入壳更加容易,降低绝缘件堆叠冗余的概率,提高了电池单体的可制造性;同时可以改善电极组件居中度不佳的问题,降低电极组件偏斜的风险,提高电池单体的可靠性。
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