公开(公告)号：US20230264293A1

公开(公告)日：2023-08-24

申请号：US18308686

申请日：2023-04-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhihong Zhang ,  Congcheng Qi ,  Zhengjuan Li ,  Shixiong Zheng

IPC: B23K26/142 ,  B23K26/14

CPC classification number: B23K26/142 ,  B23K26/1476

Abstract: A laser welding copper nozzle, a laser welding auxiliary apparatus and a laser welding device are provided. In some embodiments, the laser welding copper nozzle includes: a gas intake port configured to be in communication with a gas intake channel, so as to enable a blowing device to blow a gas to the gas intake port through the gas intake channel during laser welding; and a gas exhaust port configured to be in communication with a gas extraction channel, so as to enable a gas suction device to extract the gas from the gas exhaust port through the gas extraction channel during the laser welding. An axis of the gas intake port and an axis of the gas exhaust port are in the same straight line, and a laser channel for allowing laser to pass during the laser welding is formed between the gas intake port and the gas exhaust port.

公开(公告)号：US11784372B2

公开(公告)日：2023-10-10

申请号：US17127650

申请日：2020-12-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shixiong Zheng ,  Lei Wang ,  Pengfei Li ,  Congcheng Qi ,  Qiangguo Zhao ,  Ni Fang

IPC: H01M50/227 ,  H01M50/262 ,  H01M50/224 ,  H01M50/209

CPC classification number: H01M50/227 ,  H01M50/209 ,  H01M50/224 ,  H01M50/262

Abstract: This application relates to an end plate of a battery module as well as a battery module. The end plate includes a body and a connector connected to the body. The body is fixedly connected to a side plate through the connector. The connector is provided with a light shielding part. The light shielding part is located on a side of the connector that faces the side plate, and located between the connector and the side plate. In the end plate as well as the battery module according to this application, the end plate includes the body and the connector, and weldability between the body and the side plate is improved by the connector. The connector includes a light shielding part that avoids the problem of battery explosion caused by a laser beam radiated to a battery inside the battery module, and improves safety performance of the battery.