Battery protection plate and battery

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AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
By placing the protection circuit module externally on the embedded circuit board and encapsulating it within the top seal structure of the cell, the problem of the protection board thickness affecting the battery energy density is solved, thereby improving the battery energy density and mechanical performance.

CN224480967UActive Publication Date: 2026-07-10SUNWODA ELECTRONICS CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: SUNWODA ELECTRONICS CO LTD
Filing Date: 2025-06-13
Publication Date: 2026-07-10

Application Information

Patent Timeline

13 Jun 2025

Application

10 Jul 2026

Publication

CN224480967U

IPC: H01M10/42; H01M50/105

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Technology Topics

Electrical battery Mechanical engineering

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AI Technical Summary

Technical Problem

The existing lithium-ion battery protection board design is not thin enough, which affects the improvement of battery energy density.

Method used

The protection circuit module is moved out of the main body of the protection board and placed on the embedded circuit board. The embedded circuit board is then encapsulated within the top sealing structure of the battery cell. The redundant space in the top sealing area of the battery cell is used to integrate the protection circuit module.

Benefits of technology

By reducing the thickness of the protection board, the space of the top sealing area of the cell can be fully utilized to improve the energy density of the battery and enhance the mechanical properties of the top sealing structure of the cell.

✦ Generated by Eureka AI based on patent content.

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Figure CN224480967U_ABST

Patent Text Reader

Abstract

This application relates to the field of lithium-ion battery technology, and in particular to a battery protection board and a battery. The battery protection board includes a protection board body and an embedded circuit board. The protection board body is externally mounted on one end of the battery cell and electrically connected to the cell's tabs and load. The embedded circuit board integrates a protection circuit module. The embedded circuit board is externally mounted on one side of the protection board body and encapsulated within the top sealing structure of the battery cell. An extension is electrically connected to the embedded circuit board, extending out of the top sealing structure and electrically connected to the protection board body, allowing the protection circuit module to be connected to the battery cell's charging and discharging circuit to control and monitor the charging and discharging process. By moving the protection circuit module out of the protection board body, this application can reduce the thickness of the protection board body to a certain extent. By encapsulating the embedded circuit board within the top sealing structure of the battery cell, the redundant space in the top sealing area of the battery cell can be fully utilized, thereby effectively improving the battery's energy density.

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