公开(公告)号：US20230271278A1

公开(公告)日：2023-08-31

申请号：US18113073

申请日：2023-02-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yongli ZHANG ,  Zhihua WEN ,  Keqiang LI ,  Yitai GUO ,  Cong ZHANG ,  Yunru SHI

IPC: B23K37/02 ,  B23K20/10 ,  B23K37/04

CPC classification number: B23K37/0211 ,  B23K20/10 ,  B23K37/0247 ,  B23K37/0426 ,  B23K2101/36

Abstract: A welding device may include a frame, a welding assembly, a fastening bracket, a protective pressure plate, a first drive mechanism, and a second drive mechanism; the welding assembly may include a first welding head and a second welding head that are arranged opposite each other, and the first welding head may be fastened on the frame; the fastening bracket may be movably provided on the frame, and the second welding head may be fastened on the fastening bracket; the protective pressure plate may be fastened on the fastening bracket or the second welding head; and the first drive mechanism may be drivingly connected to the fastening bracket and configured to drive the fastening bracket so that the second welding head may reach a position of a welding point and the protective pressure plate may press against a to-be-welded member.

公开(公告)号：US20230187655A1

公开(公告)日：2023-06-15

申请号：US18069586

申请日：2022-12-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Mingling LI ,  Jia PENG ,  Xin LIU ,  Qisen HUANG ,  Keqiang LI ,  Cheng LI ,  Xianghui LIU

IPC: H01M4/66 ,  H01M4/82

CPC classification number: H01M4/667 ,  H01M4/82 ,  H01M4/661 ,  H01M4/668 ,  H01M2004/021

Abstract: A composite current collector includes a support layer and a conductive layer. The support layer has two surfaces opposite to each other along a thickness direction. The conductive layer is provided on the two surfaces and includes a first portion and a second portion. The first portion includes a first sub-portion and a second sub-portion provided on the two surfaces, respectively. The second portion includes a third sub-portion and a fourth sub-portion. The third sub-portion and the first sub-portion are integrally provided. The fourth sub-portion and the second sub-portion are integrally provided. The third sub-portion and the fourth sub-portion both project from the support layer. The third sub-portion and the fourth sub-portion are affixed to each other and fused as a whole.