Electrode assembly, battery and electric device

By introducing elastic insulating members into the electrode assembly to support the current collector, the problem of the pole sheet being crushed when the electrode ear and the current collector are welded is solved, and the safety and service life of the battery are improved.

CN222637619UActive Publication Date: 2025-03-18JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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Patent Information

Application Number
CN202421272965.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-05
Publication Date
2025-03-18
Estimated Expiration
2034-06-05

AI Technical Summary

Technical Problem

During the battery assembly process, welding of the electrode ear and the current collector easily leads to inverted insertion of the electrode ear and the electrode plate being crushed, causing the risk of abnormal lithium-ion and self-discharge of the battery.

Method used

An electrode assembly is designed, including an electrode assembly body, a first electrode ear and an elastic insulating member. The first electrode ear and an elastic insulating member are arranged on the same side of the electrode assembly body and are connected thereto. The elastic insulating member is used to support the current collector to avoid the inverted insertion of the electrode ear and the pole sheet being crushed.

Benefits of technology

Through the buffering effect of the elastic insulating member, external pressure damage to the electrode sheet during welding of the electrode ear and the current collector is effectively avoided, and the safety and service life of the battery are improved.

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Abstract

The utility model relates to the technical field of batteries, and provides an electrode assembly, a battery and an electric device. Wherein the electrode assembly comprises an electrode assembly body, a first tab part and an elastic insulating piece, the first tab part and the elastic insulating piece are arranged on the same side of the electrode assembly body and are both connected with the electrode assembly body, the first tab part is used for being electrically connected with the current collecting piece, and the elastic insulating piece is used for supporting the current collecting piece. The current collecting piece is supported by the elastic insulating piece, so that welding external force can be effectively prevented from directly acting on the pole piece through the current collecting piece when the pole lug is welded, and the pole piece is prevented from being crushed by the external force.
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