Battery monomer, battery and electric device

By using a first insulating member in the battery cell to insert the first pole ear into the accommodation space, the problem of short-connection of the pole ear to the shell is solved, and the reliability of the use of the battery cell is significantly improved.

CN222637434UActive Publication Date: 2025-03-18CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421047132.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2025-03-18
Estimated Expiration
2034-05-14

AI Technical Summary

Technical Problem

During use, existing battery cells are prone to short-connection between the pole ear and the shell, which leads to internal short-connection risk and affects the reliability of use.

Method used

A battery cell is designed, with a structure of a housing, an electrode terminal, an electrode assembly and a first insulating member. The first insulating member is composed of a first insulating portion and a second insulating portion, the first insulating portion is arranged between the wall portion and the first pole ear, and the second insulating portion is arranged around the first insulating portion to form an accommodating space to insert the first pole ear.

Benefits of technology

Through the design of the first insulating member, the first pole ear and the shell are effectively separated, the insulation isolation effect is improved, the risk of short connection is reduced, and thus the reliability of the battery cell is improved.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model provides a battery monomer, a battery and a power utilization device, and belongs to the technical field of batteries. The battery monomer comprises a shell, an electrode terminal, an electrode assembly and a first insulating part, the housing has a wall portion. The electrode terminal is provided on the wall portion. The electrode assembly is contained in the shell, the electrode assembly is provided with a first tab, the first tab is arranged at one end, close to the wall part, of the electrode assembly in the thickness direction of the wall part, and the first tab is electrically connected with the electrode terminal. The first insulating part comprises a first insulating part and a second insulating part, at least part of the first insulating part is located between the wall part and the first tab in the thickness direction of the wall part, the second insulating part is arranged around the first insulating part in a surrounding mode, and the second insulating part and the first insulating part jointly define a containing space; and at least part of the first tab is inserted into the accommodating space. The separation between the first tab and the shell can be realized through the first insulating part, and the effect of insulating and isolating the first tab and the shell by the first insulating part can be improved.
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