公开(公告)号：US20190283171A1

公开(公告)日：2019-09-19

申请号：US16282898

申请日：2019-02-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Congmiao WU ,  Zhiqiang GUO ,  Zuyu WU ,  Jianfeng LI ,  Guodong LI ,  Taosheng ZHU

IPC: B23K20/10 ,  H01M4/66

Abstract: The present disclosure relates to a welding device and a processing apparatus for a secondary battery current collector. The welding device includes: a welding head; and an anvil block. A welding station is disposed between the welding head and the anvil block. The welding device is configured to weld a foil to a portion of a composite current collector at the welding station. According to this solution, the foil can be used as a tab of the composite current collector by using the foil to connect with the composite current collector so as to output the current in the battery cell.

公开(公告)号：US20180294447A1

公开(公告)日：2018-10-11

申请号：US15823131

申请日：2017-11-27

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhijun GUO ,  Mingchuan SUN ,  Peng WANG ,  Taosheng ZHU

IPC: H01M2/04 ,  H01M2/12 ,  H01M2/34 ,  H01M10/04

Abstract: The present disclosure provides a cap assembly for a secondary battery and the secondary battery. The cap assembly of the secondary battery includes: a cap plate including a cover sheet having a first electrode lead-out hole; a first terminal member including a first terminal and a conductive sealing ring, the first terminal penetrating into the first electrode lead-out hole and the conductive sealing ring surrounding the first terminal and sealing the first electrode lead-out hole, wherein the conductive sealing ring is in a compression state, the first terminal is electrically connected with the cover sheet through the conductive sealing ring, and the conductive sealing ring has a resistance value greater than a resistance value of the first terminal.