公开(公告)号：US20220200058A1

公开(公告)日：2022-06-23

申请号：US17692748

申请日：2022-03-11

Applicant: BYD COMPANY LIMITED

Inventor： Jianjun WANG ,  Bingfei HUI ,  Zhixin JIANG ,  Xiaoqiang YIN

IPC: H01M10/0585 ,  H01M50/198

Abstract: A cell includes a positive electrode plate, a negative electrode plate, and a separator. An insulating adhesive tape is attached to the positive electrode plate. A first adhesive-tape surface of the insulating adhesive tape is disposed on a same side as a first positive-electrode-plate surface of the positive electrode plate. The first positive-electrode-plate surface is arranged between the first adhesive-tape surface and the second adhesive-tape surface in the first direction. The second adhesive-tape surface is arranged between the first positive-electrode-plate surface and the second positive-electrode-plate surface in the first direction. The insulating adhesive tape extends from the first positive-electrode-plate end to the second positive-electrode-plate end in the second direction. A battery module, a battery pack, and a vehicle including same are also provided.

公开(公告)号：US20230347450A1

公开(公告)日：2023-11-02

申请号：US18006523

申请日：2021-07-19

Applicant: BYD COMPANY LIMITED

Inventor： Xinjun JIANG ,  Xiaobo TANG ,  Xiaoyong ZHANG ,  Jian ZHANG ,  Jianjun WANG

IPC: B23K26/38 ,  H01M4/139 ,  H01M4/04

CPC classification number: B23K26/38 ,  H01M4/139 ,  H01M4/0471

Abstract: The present disclosure discloses a method and device for forming a groove on an electrode plate. The method for forming a groove on an electrode plate includes: thinning an active material layer by a laser method, where the active material layer is located in a to-be-grooved area of the electrode plate; and removing the thinned active material layer by a physical removal method to form an accommodating groove that exposes the current collector layer. By adopting a combination of the laser method and the physical removal method, the present disclosure, the present disclosure, on the one hand, can quickly remove the active material layer in the to-be-grooved area, and on the other hand, can avoid damaging the current collector layer. This ensures the processing precision, speeds up the production and improves the product yield.

公开(公告)号：US20220200100A1

公开(公告)日：2022-06-23

申请号：US17692806

申请日：2022-03-11

Applicant: BYD COMPANY LIMITED

Inventor： Jianjun WANG ,  Bingfei HUI ,  Zhixin JIANG ,  Xiaoqiang YIN

IPC: H01M50/46 ,  H01M4/36 ,  H01M50/536 ,  H01M10/0587 ,  H01M50/457

Abstract: A battery separator includes a separator body and an insulating adhesive tape attached thereto. The separator body includes a first separator surface and a second separator surface arranged opposite to each other in a second direction, and includes a first separator end and a second separator end arranged opposite to each other in a first direction. The insulating adhesive tape includes a first adhesive-tape surface and a second adhesive-tape surface arranged opposite to each other in the second direction, and a first adhesive-tape end and a second adhesive-tape end arranged opposite to each other in the first direction. The insulating adhesive tape is attached to the separator body in the first direction, and the first adhesive-tape surface is arranged at a position corresponding to the first separator surface. The insulating adhesive tape extends from the first separator end to the second separator end in the first direction.