公开(公告)号：US20240297425A1

公开(公告)日：2024-09-05

申请号：US18659632

申请日：2024-05-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhitong SHANG ,  Congsheng CHEN ,  Mingxi YU ,  Yaoling WEN ,  Wenfa LIN

IPC: H01M50/636 ,  H01M50/15

CPC classification number: H01M50/636 ,  H01M50/15

Abstract: A battery end cover assembly includes an end cover having a liquid injection hole penetrating along a first direction. The liquid injection hole includes a first hole segment and a second hole segment divided along the first direction; the cross-sectional area of the first hole segment is larger than the cross-sectional area of the second hole segment; a stepped surface is formed between the first hole segment and the second hole segment; and the stepped surface includes a first inclined surface inclined toward the second hole segment along the first direction.

公开(公告)号：US20230420812A1

公开(公告)日：2023-12-28

申请号：US18464945

申请日：2023-09-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Congsheng CHEN ,  Wenfa LIN ,  Yaoling WEN ,  Jiang LIN ,  Minghao TANG ,  Jia LIN

IPC: H01M50/566 ,  H01M50/103

CPC classification number: H01M50/566 ,  H01M50/103

Abstract: A tab welded structure includes a conductive member and a tab formed by stacking a plurality of layers of pieces in a first direction. The conductive member is welded to the tab to form a fused area. The fused area includes a first fused portion and a second fused portion. The first fused portion extends from the tab into the conductive member in the first direction. The second fused portion is demarcated from the first fused portion, the second fused portion is located at a side portion of the first fused portion, and the second fused portion is configured to be connected to the first fused portion and the tab.

公开(公告)号：US20230216077A1

公开(公告)日：2023-07-06

申请号：US18181597

申请日：2023-03-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yaoling WEN ,  Zhongping LUO ,  Wenfa LIN

IPC: H01M10/04 ,  H01M50/202

CPC classification number: H01M10/0409 ,  H01M10/0431 ,  H01M50/202

Abstract: Disclosed are a wound electrode assembly, and a method and manufacturing apparatus for manufacturing the wound electrode assembly. The wound electrode assembly includes an electrode sheet. The electrode sheet includes a winding ending section, the winding ending section is provided with a plurality of first tabs, the plurality of first tabs are laminated, and among the two adjacent first tabs, a width of the first tab close to a winding center of the wound electrode assembly is greater than a width of the first tab away from the winding center. Among the two adjacent first tabs, a width of the first tab close to the winding center is greater than a width of the first tab away from the winding center. After the winding ending section is wound, the amount of misalignment between the two adjacent first tabs is reduced.

公开(公告)号：US20240283118A1

公开(公告)日：2024-08-22

申请号：US18652909

申请日：2024-05-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhitong SHANG ,  Yaoling WEN

IPC: H01M50/636 ,  H01M50/103 ,  H01M50/15 ,  H01M50/186

CPC classification number: H01M50/636 ,  H01M50/103 ,  H01M50/15 ,  H01M50/186

Abstract: An end cap assembly includes an end cap, a first sealing member and a second sealing member. The end cap includes a cap body. The cap body includes a cap portion and a filling table, and has a filling hole penetrating the cap portion and the filling table. The first sealing member is blocked in the filling hole, and the second sealing member has a first sealing portion and a second sealing portion connected to each other. The first sealing portion covers the side of the first sealing member that faces away from the interior of the battery cell, the second sealing portion is bent toward the interior of the battery cell relative to the first sealing portion, and is sealingly connected to an outer peripheral side wall of the filling table.

公开(公告)号：US20230318155A1

公开(公告)日：2023-10-05

申请号：US18329807

申请日：2023-06-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Congsheng CHEN ,  Wenfa LIN ,  Yaoling WEN

IPC: H01M50/271 ,  H01M50/566

CPC classification number: H01M50/566 ,  H01M50/271 ,  H01M2220/20

Abstract: Embodiments provide a top cover assembly of a battery, a battery, and an electric apparatus, which can optimize the processing technology of batteries so as to improve the performance of batteries. The top cover assembly of the battery includes a top cover plate ; poles disposed on the top cover plate, each of which includes a first welding zone ; and adapting pieces configured to be electrically connected to the poles, where the adapting piece includes a second welding zone, and the second welding zone is configured to be correspondingly welded to the first welding zone to implement electrical connection; where both the first welding zone and the second welding zone are disposed obliquely with respect to a plane in which the top cover plate is located.