公开(公告)号：US20240339729A1

公开(公告)日：2024-10-10

申请号：US18749642

申请日：2024-06-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huaichao Tang ,  Qianjun Chen ,  Ting Li

IPC: H01M50/474 ,  H01M10/0585 ,  H01M50/586

CPC classification number: H01M50/474 ,  H01M10/0585 ,  H01M50/586

Abstract: Provided are an electrode assembly, a battery cell, a battery, and an electrical device, belonging to the field of battery technology. The electrode assembly includes a cladding layer, a plurality of stacked electrode sheets, and a separator disposed between the two adjacent electrode sheets. The electrode sheet includes an active material region and an inactive material region, the active material regions of the plurality of electrode sheets and the separator are stacked to form a body portion, and the inactive material regions of the plurality of electrode sheets are stacked to form a tab portion protruding from the body portion. The cladding layer at least clads a circumference of the body portion to cover an edge of the active material region.