Battery monomer, battery and electric equipment

By using an insulating protective layer and sealing connection section in the battery cell to separate the electrode assembly and the shell, the problem of easy breakdown in the battery cell shell in a high voltage environment is solved, and the effect of improving breakdown voltage and reducing the risk of combustion or explosion is achieved.

CN119725934AActive Publication Date: 2025-03-28CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202311271481.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-28
Publication Date
2025-03-28
Estimated Expiration
2043-09-28

AI Technical Summary

Technical Problem

The housing of the battery cell is prone to high-voltage breakdown in a high-voltage environment, resulting in the risk of combustion or explosion.

Method used

The electrode assembly is coated with an insulating protective layer, which separates the electrode assembly from the shell through a sealed connection section, thereby increasing the creepage distance, thereby enhancing the breakdown voltage of the shell.

Benefits of technology

It effectively improves the high-pressure breakdown ability of the battery cell shell and reduces the probability of combustion or explosion.

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Abstract

The invention relates to the technical field of battery structures, and provides a single battery, a battery and electric equipment.The single battery comprises a shell, an electrode assembly and an insulation protection layer, the shell is provided with a containing cavity, the electrode assembly is arranged in the containing cavity, and the insulation protection layer wraps the electrode assembly; according to the battery monomer provided by the embodiment of the invention, the electrode assembly is coated with the insulating protection layer, and the electrode assembly and the shell are separated through the insulating protection layer, so that the creepage distance between the shell and the electrode assembly is increased, and the purpose of improving the breakdown voltage resistance between the shell and the electrode assembly can be achieved; and therefore, the high-voltage breakdown resistance of the shell can be effectively improved, and the probability of combustion or explosion of the battery monomers is reduced.
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