Battery top cover and battery

WO2026137883A1PCT designated stage Publication Date: 2026-07-02HUNAN DESAY BATTERY CO LTD

Patent Information

Authority / Receiving Office: WO · WO
Patent Type: Applications
Current Assignee / Owner: HUNAN DESAY BATTERY CO LTD
Filing Date: 2025-08-12
Publication Date: 2026-07-02

AI Technical Summary

Technical Problem

In existing lithium-ion batteries, sensor modules are fixed by welding, which makes the manufacturing process complex and inconvenient for later maintenance and replacement, and cannot effectively monitor key data such as temperature and pressure inside the battery.

Method used

The sensor module is fixed to the battery top cover body using a snap-fit method. The snap-fit and buckle structures enable simple installation and convenient maintenance of the sensor module. The bottom of the sensor assembly is embedded in a through hole to obtain internal battery data.

Benefits of technology

It enables simple and convenient installation of the sensor module and facilitates subsequent maintenance. It can effectively monitor information such as internal air pressure and temperature of the battery, thereby improving the reliability and service life of the battery.

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Figure CN2025113970_02072026_PF_FP_ABST

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Abstract

The present application relates to the technical field of battery production. Disclosed are a battery top cover and a battery. The battery top cover comprises a top cover body, a terminal assembly, and a sensor module. The top cover body is provided with a first through hole and a second through hole, and a first snap-fit structure is provided on the top cover body on the side of the second through hole away from the first through hole; the terminal assembly is mounted in the first through hole, and a first engaging structure is arranged on the upper surface of the terminal assembly and / or the top cover body; and the sensor module comprises a fixing assembly and a sensor assembly, the fixing assembly comprises a first end and a second end which are arranged opposite each other in the direction of length, and the sensor assembly is connected between the first end of the fixing assembly and the second end of the fixing assembly. The battery top cover of the present application enables the sensor module to be fixed to the top cover body in an engaging manner, such that the mounting manner is simple and convenient, and subsequent maintenance and replacement are facilitated.

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