Roller, roller manufacturing method, rolling equipment and current collector surface treatment method

• Main Authors: LIU LONGJIANG, YANG YUNA, ZHOU SUCHAO, CHANG KAIDE, ZHANG FANGXU, CHEN YANPENG
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ELECTRICITY; MACHINE TOOLS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; PUNCHING METAL; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The invention provides a roller, a roller manufacturing method, rolling equipment and a current collector surface treatment method.The roller comprises a roller body, and a plurality of laser-engraved three-dimensional shapes are arranged on the peripheral face of the roller body in the axial direction and the circumferential direction of the roller body at intervals; therefore, a regular microstructure is formed on the surface of the current collector rolled on the roller. The roller provided by the invention can solve the problems that the morphology formed by the existing current collector surface treatment method is poor in uniformity and disordered, so that the structures of the two surfaces of the current collector are asymmetric, the capacity of electrode materials on the two surfaces cannot be uniformly released, and the attenuation of the battery capacity is accelerated. 本公开提供一种轧辊、轧辊制造方法、辊压设备和集流体表面处理方法，其中轧辊包括辊体，在所述辊体的外周面上沿所述辊体轴向和周向相互间隔设置有多个由激光雕刻的三维立体形貌，以使在轧辊上进行辊压的集流体表面形成规律的微观形貌。本公开提供的轧辊能够解决现有的集流体表面处理