公开(公告)号：US20240250397A1

公开(公告)日：2024-07-25

申请号：US18593997

申请日：2024-03-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Congsheng Chen ,  Wenfa Lin ,  Yaoling Wen

IPC: H01M50/645 ,  H01M50/15 ,  H01M50/184

CPC classification number: H01M50/645 ,  H01M50/15 ,  H01M50/184

Abstract: Provided are a battery cover plate assembly, including: a cover plate provided with a filling port; and a sealing pin for sealing the filling port; wherein the sealing pin includes a main body portion and a welding portion, and the welding portion is located at a periphery of the main body portion and extends from the main body portion toward an outer circumferential side; and the cover plate is provided with a second recess and a first recess, which are sequentially arranged from the inside to the outside at a periphery of the filling port, the main body portion is located in the second recess, and the welding portion is welded to a bottom surface of the first recess. According to the present application, the main body portion is located in the second recess, and the welding portion is welded to the bottom surface of the first recess.

公开(公告)号：US20240313365A1

公开(公告)日：2024-09-19

申请号：US18674947

申请日：2024-05-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yaoling Wen

IPC: H01M50/533 ,  H01M50/103

CPC classification number: H01M50/533 ,  H01M50/103

Abstract: Provided is an electrode plate, an electrode assembly, a battery cell, a battery, and an electric device. The electrode plate includes: a body portion having a surface at least partially coated with an active material; a tab portion arranged on at least one side of the body portion and connected to the body portion; and an opening penetrating the tab portion in a thickness direction of the tab portion. The opening has a first end and a second end that are sequentially arranged away from the body portion. The opening extends from the first end to the second end along a predetermined path. In the electrode plate of embodiments of the present disclosure, an occurrence of folding of the tab portion of the electrode plate during manufacturing can be reduced, avoiding an insufficient overcurrent area of the tab portion.

公开(公告)号：US20240363985A1

公开(公告)日：2024-10-31

申请号：US18767948

申请日：2024-07-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhitong Shang ,  Yaoling Wen

IPC: H01M50/645 ,  H01M50/15 ,  H01M50/184 ,  H01M50/186 ,  H01M50/197 ,  H01M50/198

CPC classification number: H01M50/645 ,  H01M50/15 ,  H01M50/184 ,  H01M50/186 ,  H01M50/197 ,  H01M50/198 ,  H01M2220/20

Abstract: This application relates to an end cover, an end cover assembly, a battery cell, a battery, and an electric apparatus. The end cover includes a cover body, the cover body having an electrolyte injection hole running through two sides in a thickness direction of the cover body, the electrolyte injection hole including a first hole section and a second hole section that are opened top-down in the thickness direction of the cover body, and the first hole section and the second hole section being connected at two ends in close proximity to each other. The first hole section is configured to accommodate an electrolyte injection nozzle, at least a part of a hole wall fits with an outer wall of the electrolyte injection nozzle to form an overflow prevention zone, and the overflow prevention zone is located above an electrolyte injection port in the electrolyte injection nozzle.