公开(公告)号：US20240413508A1

公开(公告)日：2024-12-12

申请号：US18810537

申请日：2024-08-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Long Chen ,  Denghua Lin ,  Shoujun Huang ,  Xinxiang Chen ,  Yulian Zheng ,  Peng Wang ,  Haizu Jin

IPC: H01M50/627 ,  H01M50/103 ,  H01M50/15 ,  H01M50/249 ,  H01M50/578 ,  H01M50/593 ,  H01M50/682

Abstract: The present application provides a battery cell, a battery, an electrical device, and a method and device for manufacturing a battery cell. The battery cell comprises: a housing, a first wall of the housing being provided with a liquid injection hole; a first electrode assembly and a second electrode assembly; an insulating structure arranged between the two electrode assemblies and comprising a second wall and a third wall; a first surface of the insulating structure facing the first wall is provided with a third through hole, the third through hole being used for guiding into the insulating structure an electrolyte injected through the liquid injection hole, so that the electrolyte in the insulating structure flows through the first through hole towards the first electrode assembly and flows through the second through hole towards the second electrode assembly.

公开(公告)号：US11710871B2

公开(公告)日：2023-07-25

申请号：US17585110

申请日：2022-01-26

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang Chen ,  Yulian Zheng ,  Shoujun Huang ,  Peng Wang

IPC: H01M50/147 ,  H01M10/04

CPC classification number: H01M50/147 ,  H01M10/0431 ,  Y02P70/50

Abstract: An end cover assembly, a battery cell and an electrolyte injection method therefor, a battery, and a power consumption device are provided. The end cover assembly may include an end cover provided with a through hole for injecting an electrolyte and an accommodating portion; a seal configured to seal the through hole; and a cover body covering at least part of the seal, the cover body including a limiting portion, the limiting portion being located within the accommodating portion to restrict the cover body from separating from the end cover, and the cover body being movable together with the seal by movement of the limiting portion relative to the accommodating portion, wherein when the cover body moves to a first position, the seal covers the through hole, and when the cover body moves to a second position, the seal avoids the through hole.

公开(公告)号：US20190355943A1

公开(公告)日：2019-11-21

申请号：US16413749

申请日：2019-05-16

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang Chen ,  Chengyou Xing ,  Shoujun Huang ,  Yulian Zheng ,  Peng Wang

IPC: H01M2/04 ,  H01M2/26 ,  H01M2/08 ,  H01M2/34 ,  H01M2/12 ,  H01M10/0525 ,  H01M2/30

Abstract: The present disclosure provides a top cover assembly of a secondary battery. The top cover assembly includes: a top cover plate and a gas exhaust valve mounted in the top cover plate. The gas exhaust valve includes a valve body, a valve sleeve and a valve cover. The valve body includes a valve part, and the valve part is provided with a gas exhaust hole that communicates with an interior of the secondary battery. The valve cover seals and is connected to the valve body to form an accommodation space. The valve sleeve is located in the accommodation space, and the valve sleeve covers the valve part. A gas exhaust passage is disposed between the valve sleeve and the valve part, the valve cover is provided with a venting hole that communicates with outside, and the gas exhaust passage communicates with the gas exhaust hole and the venting hole.

公开(公告)号：US11894568B2

公开(公告)日：2024-02-06

申请号：US17462741

申请日：2021-08-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiang Li ,  Yulian Zheng ,  Peng Wang ,  Shoujun Huang ,  Xinxiang Chen

IPC: H01M50/188 ,  H01M50/147 ,  H01M50/209 ,  H01M50/543 ,  B60K1/04 ,  H01M50/562 ,  H01M50/529 ,  H01M50/159 ,  H01M50/157 ,  H01M50/197

CPC classification number: H01M50/188 ,  B60K1/04 ,  H01M50/147 ,  H01M50/209 ,  H01M50/543 ,  B60K2001/0438 ,  H01M50/157 ,  H01M50/159 ,  H01M50/197 ,  H01M50/529 ,  H01M50/562 ,  H01M2220/20 ,  Y02E60/10

Abstract: This application relates to a secondary battery, a battery column, and an apparatus. The secondary battery includes a top cover plate, having an outer surface and an inner surface disposed opposite each other in a thickness direction of the top cover plate and an electrode lead-out hole extending along the thickness direction; a pole, disposed in the electrode lead-out hole, where the pole includes a first metal layer and a second metal layer, and the first metal layer and the second metal layer are stacked along a direction from the inner surface to the outer surface; an insulation member, disposed between the top cover plate and the pole; and a first bonding layer, disposed between the insulation member and the first metal layer, where the insulation member is hermetically connected to the first metal layer through the first bonding layer.

公开(公告)号：US11509026B2

公开(公告)日：2022-11-22

申请号：US16826228

申请日：2020-03-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Huasheng Su ,  Shoujun Huang ,  Yulian Zheng

IPC: H01M50/543 ,  H01M50/183 ,  H01M50/172 ,  H01M50/557

Abstract: The disclosure relates to a cap assembly and a secondary battery. The cap assembly includes: a cap plate including a main portion and a convex portion, wherein the main portion includes a first surface, a second surface and an electrode lead-out hole; an electrode terminal including an extension portion that extends beyond a hole wall of the electrode lead-out hole and extends in a circumferential direction of the electrode lead-out hole to form a ring structure, and the extension portion is arranged on a side of the first surface away from the second surface; and a sealing ring at least partially disposed between the extension portion and the main portion, wherein the convex portion is disposed on the second surface and around the electrode lead-out hole and has a thickness of 0.01 mm to 2 mm, a top surface of the convex portion extends out of the second surface.

公开(公告)号：US20220238945A1

公开(公告)日：2022-07-28

申请号：US17721384

申请日：2022-04-15

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Shoujun Huang ,  Xinxiang Chen ,  Yulian Zheng ,  Peng Wang

IPC: H01M50/15 ,  H01M50/186

Abstract: The present application provides an end cover assembly, a battery cell, a battery pack, apparatus and a liquid injection method. The end cover assembly includes an end cover plate, including a through hole for injecting electrolyte and a fixing portion arranged around the through hole; a nail body, including an accommodating portion for receiving the fixing portion. The accommodating portion is in a shape of annular and includes two inner walls arranged to be spaced apart from each other in a radial direction of the accommodating portion, and an inner wall and an outer wall of the fixing portion are respectively pressed against and engaged with the two inner walls of the accommodating portion to seal the through hole.

公开(公告)号：US11183722B2

公开(公告)日：2021-11-23

申请号：US16413762

申请日：2019-05-16

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang Chen ,  Shoujun Huang ,  Chengyou Xing ,  Yulian Zheng ,  Peng Wang

IPC: H01M50/147 ,  H01M50/183 ,  H01M50/342 ,  H01M50/531 ,  H01M10/0525 ,  H01M50/543 ,  H01M50/578

Abstract: The present disclosure provides a secondary battery and a top cover assembly thereof. The top cover assembly includes: a top cover plate and a valve sleeve. The top cover plate includes an accommodation groove and a valve part protruding upward from a bottom wall of the accommodation groove, and the valve part is provided with at least one gas exhaust hole that communicates with an interior of the secondary battery. The valve sleeve is located in the accommodation groove and covers the valve part, a gas exhaust passage that communicates with outside is disposed between the valve sleeve and the valve part, and the gas exhaust passage communicates with the at least one gas exhaust hole.

公开(公告)号：US20210135310A1

公开(公告)日：2021-05-06

申请号：US17128054

申请日：2020-12-19

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Shoujun Huang ,  Yuanbao Chen ,  Huasheng Su ,  Peng Wang

IPC: H01M50/148 ,  H01M10/0525 ,  H01M50/184 ,  H01M50/188 ,  H01M50/552 ,  H01M50/172

Abstract: The present application relates to a top cover assembly and a secondary battery. The top cover assembly includes: a top cover plate including a lead-out hole and an inside surface forming the lead-out hole; an electrode terminal including a cylindrical portion penetrating the lead-out hole and an annular flange, the annular flange extending beyond the inside surface along the lead-out hole; a sealing ring including a barrel portion and a ring portion, surrounding the cylindrical portion by the barrel portion. The ring portion includes a first ring body and a second ring body distributed in the radial direction; an insulating member including a connecting portion and an extension portion, and the connecting portion seals the second ring body; a portion of the insulating member beyond the second ring body forms the extension portion, and in the radial direction, the extension portion extends beyond the annular flange.

公开(公告)号：US20250112323A1

公开(公告)日：2025-04-03

申请号：US18976384

申请日：2024-12-11

Applicant: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED ,  CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haibo Ke ,  Quankun Li ,  Peng Wang ,  Shoujun Huang ,  Qi Cheng ,  Xiang Mei

IPC: H01M50/342 ,  B60L50/60 ,  B60R16/033 ,  H01M50/103

Abstract: This application discloses a housing, a battery cell, a battery, and an electric device, and pertains to the field of battery technologies. The housing has at least three edge portions intersecting at a same vertex. An indentation groove is provided on the housing, and the indentation groove intersects with at least two of the edge portions. Because the region near the edge portion of the housing has strong deformation resistance, the probability of abnormal cracking of the indentation groove due to creeping of the region in which the indentation groove is provided on the housing is reduced, thereby prolonging service life of the battery cell.

公开(公告)号：US11757157B2

公开(公告)日：2023-09-12

申请号：US17478888

申请日：2021-09-18

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Huasheng Su ,  Shoujun Huang ,  Xinxiang Chen ,  Yulian Zheng ,  Peng Wang

IPC: H01M50/528 ,  H01M50/591 ,  H01M50/147 ,  H01M50/562 ,  H01M50/176 ,  H01M50/553 ,  H01M50/55

CPC classification number: H01M50/528 ,  H01M50/147 ,  H01M50/562 ,  H01M50/591 ,  H01M50/176 ,  H01M50/55 ,  H01M50/553

Abstract: The present disclosure relates to a cap assembly and a secondary battery. The cap assembly includes a cap plate, an electrode terminal, a fixing member and a connection member. The cap plate includes an electrode lead-out hole, the electrode terminal includes a terminal board, the terminal board is located at a side of the cap plate and covers the electrode lead-out hole, the fixing member at least partially surrounds the terminal board to fix the terminal board to the fixing member, the connection member is separated from the electrode terminal by the fixing member, and the connection member is connected with the cap plate. The connection member includes a main body, the main body is provided with a first groove opened downwardly along a top of the main body, and a part of the fixing member is located in the first groove.