Battery monomer, current collector, battery device and electric equipment

By setting a buffer section and opening a groove in the current collector to achieve elastic deformation, the problem of current collector fracture under vibration and impact of battery cells is solved, and the toughness and structural strength of the current collector are improved.

CN224400501UActive Publication Date: 2026-06-23CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520759334.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-06-23
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

The current collector of a battery cell is prone to breakage under vibration and impact, and existing technologies are unable to effectively solve this problem.

Method used

A buffer section is installed in the current collector, and the buffer section has a groove to achieve elastic deformation, absorb external impact force, and improve the toughness of the current collector.

Benefits of technology

It effectively reduces the possibility of the current collector breaking due to external vibration, and improves the toughness and structural strength of the current collector.

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Abstract

The utility model discloses a battery monomer, a current collector, a battery device and electric equipment, the battery monomer comprises an electrode assembly, an end cover and the current collector, and the electrode assembly comprises a tab; the end cover comprises an electrode terminal; the current collector is arranged between the end cover and the electrode assembly, the current collector comprises a first connecting part, a second connecting part and a buffer part, the first connecting part is connected with the tab, and the second connecting part is connected with the electrode terminal; the buffering part is located between the first connecting part and the second connecting part, a groove body is formed in the buffering part, and the buffering part elastically deforms through the groove body and is used for absorbing external impact. According to the technical scheme provided by the embodiment of the invention, the toughness of the current collector can be improved, and the fracture failure risk is reduced.
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