公开(公告)号：US20220131218A1

公开(公告)日：2022-04-28

申请号：US17564989

申请日：2021-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xinxiang CHEN ,  Yulian ZHENG ,  Shoujun HUANG ,  Peng WANG ,  Wei LI

IPC: H01M50/183 ,  H01M50/148 ,  H01M10/48 ,  H01M50/627

Abstract: The present application relates to an end cover assembly, a battery cell, a battery, a power consumption device and a liquid injection method. The end cover assembly includes an end cover, a sealing piece and a cover body, wherein the end cover is provided with a first hole for injecting electrolyte; the sealing piece is configured to seal the first hole; the cove body is configured to cover at least part of the sealing piece, the cover body is rotatable relative to the end cover to realize detachable connection between the cover body and the end cover; one of the sealing piece and the cover body is provided with a second hole, the other one of the sealing piece and the cover body is provided with a boss; the boss is inserted into the second hole, and the boss and the second hole are relatively rotatable.

公开(公告)号：US20210399372A1

公开(公告)日：2021-12-23

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 ,  B60K1/04 ,  H01M50/147 ,  H01M50/209 ,  H01M50/543

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：US20240222818A1

公开(公告)日：2024-07-04

申请号：US18440779

申请日：2024-02-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Denghua LIN ,  Long CHEN ,  Shoujun HUANG ,  Xinxiang CHEN ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

IPC: H01M50/548 ,  H01M10/04 ,  H01M50/593

CPC classification number: H01M50/548 ,  H01M10/049 ,  H01M50/593 ,  H01M2220/20

Abstract: A battery cell includes a housing, a first electrode component, a second electrode component, a first electrode terminal, and a second electrode terminal. The first electrode component and the second electrode component are accommodated within the housing and arranged along a first direction, and the first electrode component is insulated from the second electrode component. The first electrode terminal is arranged within the housing and electrically connected to the first electrode component to lead out electrical power from the first electrode component. The second electrode terminal is arranged within the housing and electrically connected to the second electrode component to lead out electrical power from the second electrode component.

公开(公告)号：US20240204341A1

公开(公告)日：2024-06-20

申请号：US18592996

申请日：2024-03-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xinxiang CHEN ,  Long CHEN ,  Denghua LIN ,  Shoujun HUANG ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

IPC: H01M50/342 ,  H01M10/04 ,  H01M50/103 ,  H01M50/15 ,  H01M50/209 ,  H01M50/538 ,  H01M50/548 ,  H01M50/55

CPC classification number: H01M50/3425 ,  H01M10/0404 ,  H01M10/0431 ,  H01M50/103 ,  H01M50/15 ,  H01M50/209 ,  H01M50/538 ,  H01M50/548 ,  H01M50/55 ,  H01M2220/20

Abstract: A battery cell includes: a housing; a plurality of electrode assemblies, accommodated in the housing; and a pressure relief mechanism, disposed on a first wall of the housing and located at a position on the first wall, where the position is opposite to a middle region between two adjacent electrode assemblies among the plurality of electrode assemblies, and the pressure relief mechanism is configured to release an internal pressure of the battery cell when the internal pressure of the battery cell exceeds a threshold.

公开(公告)号：US20240204312A1

公开(公告)日：2024-06-20

申请号：US18589579

申请日：2024-02-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Denghua LIN ,  Xinxiang CHEN ,  Shoujun HUANG ,  Long CHEN ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

IPC: H01M50/176 ,  H01M50/15 ,  H01M50/209 ,  H01M50/249 ,  H01M50/503 ,  H01M50/55

CPC classification number: H01M50/176 ,  H01M50/15 ,  H01M50/209 ,  H01M50/249 ,  H01M50/503 ,  H01M50/55 ,  H01M2220/20

Abstract: A battery cell includes a case, a first battery cell, and a second battery cell, the first battery cell being arranged inside the case, the first battery cell including a first main body part and a first electrode lead-out component extending from a first side of the first main body part, the second battery cell being arranged inside the case, and the second battery cell including a second main body part and a second electrode lead-out component extending from a second side of the second main body part, wherein the first side of the first main body part and the second side of the second main body part are adjacent and arranged oppositely, the first electrode lead-out component includes a first connection surface inclined with respect to the first direction, and the second electrode lead-out component includes a second connection surface inclined with respect to the first direction.

公开(公告)号：US20230395908A1

公开(公告)日：2023-12-07

申请号：US18448195

申请日：2023-08-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yanyu LIU ,  Yulian ZHENG ,  Shoujun HUANG ,  Xinxiang CHEN ,  Peng WANG

IPC: H01M50/169 ,  H01M50/242

CPC classification number: H01M50/169 ,  H01M50/242 ,  H01M2220/20

Abstract: Embodiments of this application provide a battery cell, a battery, and an apparatus using a battery, where the battery cell includes: a housing with an opening; and an end cover covering the opening. The housing and the end cover are welded together to form a fusion zone. The end cover is provided with a first stress-relieving groove on an inner surface. The first stress-relieving groove is configured to recess from the inner surface of the end cover in a direction leaving the inside of the battery cell, so as to relieve stress produced by welding of the housing and the end cover. The technical solutions provided in the embodiments of this application can enhance safety performance of batteries.

公开(公告)号：US20230378574A1

公开(公告)日：2023-11-23

申请号：US18225688

申请日：2023-07-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenwei CHEN ,  Xinxiang CHEN ,  Yulian ZHENG ,  Xiangyan BU ,  Quankun LI ,  Peng WANG ,  Haizu JIN

IPC: H01M50/15 ,  H01M50/553 ,  H01M50/564 ,  H01M50/55 ,  H01M50/176 ,  H01M50/188 ,  H01M50/184 ,  H01M50/588 ,  H01M50/59 ,  H01M50/103

CPC classification number: H01M50/15 ,  H01M50/553 ,  H01M50/564 ,  H01M50/55 ,  H01M50/176 ,  H01M50/188 ,  H01M50/184 ,  H01M50/588 ,  H01M50/59 ,  H01M50/103 ,  H01M2220/20

Abstract: An end cover assembly may include an end cover and an electrode terminal. The end cover may have an abutting surface. A terminal assembly may include the electrode terminal and a connector, where the connector may be configured to connect the electrode terminal and the end cover so as to fix the electrode terminal to the end cover, and the connector abuts against the abutting surface. The abutting surface may be provided with a concave portion recessed in a thickness direction of the end cover, and the concave portion may be configured to accommodate a part of the electrode terminal.

公开(公告)号：US20230261313A1

公开(公告)日：2023-08-17

申请号：US18303017

申请日：2023-04-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shoujun HUANG ,  Yulian ZHENG ,  Peng WANG ,  Xinxiang CHEN ,  Yanyu LIU

IPC: H01M50/342

CPC classification number: H01M50/3425

Abstract: A pressure relief mechanism is provided. The pressure relief mechanism is disposed on a housing plate of a battery cell, and including: a connecting portion, located in a peripheral region of the pressure relief mechanism, and configured to connect to the housing plate; a first part, where one end of the first part is connected to the connecting portion, and the other end of the first part extends obliquely toward an interior of the battery cell; a fragile portion, connected to the extending end of the first part; and a second part, taking a shape that protrudes toward the interior of the battery cell. An outer edge region of the second part is connected to the fragile portion. When an internal temperature or gas pressure of the battery cell is less than a preset value, the fragile portion is squeezed and pressed by the first part and/or the second part.

公开(公告)号：US20220384904A1

公开(公告)日：2022-12-01

申请号：US17701905

申请日：2022-03-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shoujun HUANG ,  Yanyu LIU ,  Xinxiang CHEN ,  Yulian ZHENG ,  Peng WANG

IPC: H01M50/325 ,  H01M10/04

Abstract: The present application provides an end cover assembly, a battery cell, a battery, an electric device and a method for preparing a battery cell and an apparatus for manufacturing a battery cell. The present application provides an end cover assembly, where the end cover assembly includes: a cover plate provided with a pressure relief hole; a fixing member fixed on the cover plate, the fixing member having a first through hole and a second through hole, and the first through hole being opposite to the pressure relief hole; and a gas permeable membrane covering at least a portion of the pressure relief hole, an edge part of the gas permeable membrane being connected to the fixing member, and a portion of the edge part being embedded into the second through hole, so as to prevent the edge part from moving relative to the fixing member.

公开(公告)号：US20220367996A1

公开(公告)日：2022-11-17

申请号：US17622024

申请日：2020-09-07

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang CHEN ,  Shoujun HUANG ,  Yulian ZHENG ,  Peng WANG ,  Wei LI ,  Chengdu LIANG

IPC: H01M50/655 ,  H01M50/15 ,  H01M50/186 ,  H01M50/342 ,  H01M50/308 ,  H01M50/184 ,  H01M50/103 ,  H01M50/209

Abstract: An end cover assembly includes: an end cover with a through hole for injecting electrolyte and a first clamping portion, wherein the first clamping portion is disposed along a circumferential direction of the through hole and is located on one side of the end cover away from an interior of the battery cell; a sealing ring for sealing the through hole; and a pressure relief device covering at least part of the sealing ring and closing the through hole; wherein the pressure relief device includes a second clamping portion, and is rotatable such that when the pressure relief device is rotated to a first position, the second clamping portion is clamped with the first clamping portion; and when the pressure relief device is rotated to a second position, the second clamping portion is disengaged from the first clamping portion.