A plate-shaped anode plate for a negative electrode sheet lithium supplement process

By employing a stacked structure of insulating layer, conductive layer and lithium source layer in the plate-shaped anode plate of lithium-ion battery, along with a conductive pillar matrix distribution and electrode spacing adjustment mechanism, the problems of uneven current distribution and unstable electrode spacing are solved, thereby improving the performance and production efficiency of lithium-ion batteries.

CN121506882BActive Publication Date: 2026-06-09广东捷盟智能装备股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
广东捷盟智能装备股份有限公司
Filing Date
2025-11-19
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional plate-shaped anode plates have problems such as uneven current distribution, complicated installation, and unstable electrode spacing in lithium-ion battery manufacturing, which affect battery performance and production efficiency.

Method used

The structure employs a stacked structure of an insulating layer, a conductive layer, and a lithium source layer. The conductive pillars in the conductive layer are distributed in a matrix. Combined with the electrode spacing adjustment mechanism, it ensures uniform current distribution and stable electrode spacing. The lithium source layer is fixed through a pressing composite process.

Benefits of technology

It achieves uniform dissolution of lithium ions, improves battery performance and production efficiency, reduces the risk of lithium plating, and enhances battery life and safety.

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Abstract

The application discloses a plate-shaped anode plate for a negative plate lithium supplementing process, and belongs to the technical field of lithium supplementing, which is sequentially provided with an insulating layer, a conductive layer and a lithium source layer. The insulating layer comprises a T-shaped seat, a cable sealing seat and a conductive cable. The T-shaped seat is provided with a guide rail matched with a lithium supplementing device. The conductive cable passes through the cable sealing seat and the T-shaped seat and is electrically connected with the conductive layer. The conductive layer comprises a conductive plate and a plurality of conductive columns. The conductive columns are fixedly embedded in the conductive plate in a matrix mode, and the top working surface of the conductive columns is in contact with the surface of the lithium source layer. The lithium source layer is used for providing lithium ions in an electrochemical lithium supplementing process. The plurality of conductive columns embedded in the conductive plate in a matrix mode form a three-dimensional conductive network framework. The current of the conductive plate is uniformly transmitted to the lithium source layer. The problem of uneven current distribution caused by the edge effect of a traditional flat plate electrode is fundamentally solved. The lithium ions are uniformly and synchronously dissolved from all parts of the lithium source layer. The thickness consistency and capacity consistency of lithium supplementing are improved.
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