Pretreatment assembly, electrode sheet lamination apparatus, and electrode sheet lamination method

By introducing a pretreatment assembly into the pole piece unit lamination device and extruding the pole piece unit connection using the crimping member, the problem that the crease cannot remain in the white gap is solved, and efficient folding and alignment guarantee of the pole piece unit is achieved.

WO2025055160A1 Publication Date: 2025-03-20EVE POWER CO LTD
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Patent Information

Application Number
PCT/CN2023/137258
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-11
Filing Date
2023-12-07
Publication Date
2025-03-20

AI Technical Summary

Technical Problem

During the lamination process of the pole sheet unit, the space gap between the two adjacent pole sheet units is small, resulting in the crease being unable to remain on the white space, affecting the performance and overall alignment of the pole sheet unit.

Method used

A pretreatment assembly is designed, including a crimping member and a tension member, the crimping portions of the crimping member can be moved to each other to squeeze the connections of two adjacent pole pieces units, creating indentations, thereby preventing the crease from remaining on the white gap when folded.

Benefits of technology

Through the use of pretreatment components, the overall alignment of the multiple pole sheet units after folding can be ensured, folding efficiency can be improved, and the problems of structural damage of the pole sheet unit and surface unevenness can be avoided.

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Abstract

The present application discloses a pretreatment assembly, an electrode sheet lamination apparatus, and an electrode sheet lamination method. The pretreatment assembly comprises a crimping member; the crimping member is provided with two crimping parts, the two crimping parts are respectively located on the upper and lower sides of electrode sheet units and are correspondingly arranged, and the two crimping parts can move toward each other to press a joint of two adjacent electrode sheet units, such that an impression is formed at the joint of the two adjacent electrode sheet units; and the moving direction of the crimping parts is perpendicular to the moving direction of the electrode sheet units.
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