公开(公告)号：US11476492B2

公开(公告)日：2022-10-18

申请号：US17058463

申请日：2020-06-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Yiruo Wang ,  Chao Yang ,  Minghao Tang ,  Xiao Wang ,  Jiang Lin ,  Chuangchuang Xiang

IPC: H01M10/04

Abstract: The present application relates to a device for preparing an electrode assembly and a preparation method of the electrode assembly. Wherein the device for preparing the electrode assembly includes: a winding assembly; a plurality of first electrode plate unwinding apparatuses, configured to provide a plurality of first electrode plates for the winding assembly; and at least one second electrode plate unwinding apparatus, configured to provide at least one second electrode plate for the winding assembly, wherein a polarity of the first electrode plate is opposite to a polarity of the second electrode plate; and wherein the winding assembly is configured to wind the plurality of first electrode plates and the at least one second electrode plate, to form an electrode assembly. The present application is used for improving winding efficiency of the electrode assembly.

公开(公告)号：US11108109B2

公开(公告)日：2021-08-31

申请号：US17139801

申请日：2020-12-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shaoyu Chen ,  Jiang Lin ,  Xiang Fan ,  Chao Yang ,  Hongxin Fang

IPC: H01M50/166 ,  H01M50/15

Abstract: The present application relates to the technical field of battery and provides a device for press-fitting a battery top cover. The device for press-fitting a battery top cover comprises a press-fitting body. The press-fitting body 1 is arranged on one side of the battery top cover facing away from a battery housing. A pneumatic cleaning assembly is arranged on one side of the press-fitting body facing the battery top cover. The pneumatic cleaning assembly is arranged to allow the chips to move out of the battery housing together with gas along a gap between the battery housing and the battery top cover. In the present application, the pneumatic cleaning assembly is arranged to allow the chips to move out of the battery housing together with gas along the gap between the battery housing and the battery top cover under the action of the gas flow so that to keep the inside of the battery housing clean, avoid short circuit in the battery caused by the chips, and improve the safety performance of the battery.

公开(公告)号：US20210126309A1

公开(公告)日：2021-04-29

申请号：US17139801

申请日：2020-12-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shaoyu CHEN ,  Jiang Lin ,  Xiang Fan ,  Chao Yang ,  Hongxin Fang

IPC: H01M50/166 ,  H01M50/15

Abstract: The present application relates to the technical field of battery and provides a device for press-fitting a battery top cover. The device for press-fitting a battery top cover comprises a press-fitting body. The press-fitting body 1 is arranged on one side of the battery top cover facing away from a battery housing. A pneumatic cleaning assembly is arranged on one side of the press-fitting body facing the battery top cover. The pneumatic cleaning assembly is arranged to allow the chips to move out of the battery housing together with gas along a gap between the battery housing and the battery top cover. In the present application, the pneumatic cleaning assembly is arranged to allow the chips to move out of the battery housing together with gas along the gap between the battery housing and the battery top cover under the action of the gas flow so that to keep the inside of the battery housing clean, avoid short circuit in the battery caused by the chips, and improve the safety performance of the battery.