A type of battery

By setting grooves on the insulating component to accommodate the tab connection, the problems of poor welding quality and thermal runaway caused by welding the tab to the lower surface of the adapter are solved, thus achieving high energy density and improved safety of the battery.

CN224437892UActive Publication Date: 2026-06-30CALB GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CALB GROUP CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the prior art, welding the tab to the lower surface of the adapter plate results in poor welding quality between the adapter plate and the electrode post, affecting the current carrying capacity and easily causing safety risks such as thermal runaway.

Method used

The tabs are welded to the upper surface of the adapter plate, and grooves are provided on the insulating part to accommodate the tab connection part. This reduces the gap between the tab insertion into the adapter plate and the terminal post, improves the welding quality and current carrying capacity, and enhances the energy density and safety of the battery.

Benefits of technology

By optimizing the connection method between the tabs and the adapter, the welding quality of the terminals and the adapter is improved, the overcurrent capacity of the battery is enhanced, the risk of thermal runaway during battery charging and discharging is avoided, and the energy density and safety of the battery are improved.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224437892U_ABST
    Figure CN224437892U_ABST
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Abstract

This application discloses a battery that reduces the problem of poor soldering between the adapter and the terminal caused by inserting the tab between the terminal and the adapter piece, and also reduces the situation where the adapter piece melts and fails due to overlap between the tab and the terminal. The battery includes: a casing, terminals, a cell, an adapter piece, and an insulating component. The casing has a first wall; the terminal is mounted on the first wall; the cell is disposed in the casing, and the cell includes a cell body and a tab, the tab including a connecting portion; the adapter piece is connected to the end of the terminal facing the cell and is located between the first wall and the cell body; the connecting portion is located on the side of the adapter piece away from the cell body and is located on the periphery of the terminal, the connecting portion being electrically connected to the adapter piece; the insulating component is disposed between the first wall and the adapter piece, and the insulating component has a groove for accommodating the connecting portion.
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