公开(公告)号：US20190157684A1

公开(公告)日：2019-05-23

申请号：US16008286

申请日：2018-06-14

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengyou XING ,  Xiang LI ,  Taosheng ZHU ,  Peng Wang ,  Yulian ZHENG

IPC: H01M4/70 ,  H01M4/13

Abstract: The present disclosure relates to the technical field of rechargeable battery and, particularly, relates to an electrode member, an electrode assembly and a rechargeable battery. The electrode member includes an electrode body and a conduction structure, the electrode body comprises an insulation substrate and an conduction layer placed on a surface of the insulation substrate, the conduction layer includes a first portion and a second portion extending from the first portion, the first portion is coated with an active material while the second portion is not coated with the active material, and the conduction structure is connected to the second portion. After the electrode assembly is formed by winding or stacking of the electrode members, adjacent current guide portions are electrically connected to one another by the conduction structure, without being limited by the insulation substrate, so that the conductivity of the electrode member is effectively improved.

公开(公告)号：US20190109302A1

公开(公告)日：2019-04-11

申请号：US15874508

申请日：2018-01-18

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yulian ZHENG ,  Chengyou XING ,  Quankun LI ,  Peng WANG ,  Lulu BAI

IPC: H01M2/02 ,  H01M2/06 ,  H01M2/30

Abstract: The present disclosure provides a cap assembly for a secondary battery and a secondary battery. The cap assembly for the secondary battery includes a cap plate, a fixing member, a connecting member, an electrode terminal and a reinforcing portion, wherein the cap plate has an electrode lead-out hole; the fixing member is fixed to the cap plate through the connecting member; the electrode terminal comprises a terminal board, wherein the terminal board has an outer peripheral surface at least partially surrounded by the fixing member so that the electrode terminal is fixed to the fixing member, and the terminal board is provided on a side of the cap plate and covers the electrode lead-out hole; and the reinforcing portion is fixed to the cap plate, and extends along a width direction of the cap plate.

公开(公告)号：US20180159108A1

公开(公告)日：2018-06-07

申请号：US15816975

申请日：2017-11-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yulian ZHENG ,  Chengyou XING ,  Zhijun GUO ,  Peng WANG

IPC: H01M2/26 ,  H01M2/02

CPC classification number: H01M2/26 ,  H01M2/0217 ,  H01M2/0277 ,  H01M2/04 ,  H01M2/06 ,  H01M2/345 ,  H01M2200/00

Abstract: The present disclosure provides a secondary battery which comprises: a cap plate provided with a first electrode terminal and a second electrode terminal; an electrode assembly comprising a main body, a first electrode tab provided to the main body and a second electrode tab provided to the main body; a first connecting piece connected between the first electrode tab and the first electrode terminal. The second electrode tab is connected with the second electrode terminal. The first electrode tab includes a first connecting portion welded with the first connecting piece and a first bending portion bent downwardly and connected between the main body of the electrode assembly and the first connecting portion. A first insulating adhesive is adhered on weld zones which are formed during welding of the first connecting portion and the first connecting piece and face the main body of the electrode assembly.

公开(公告)号：US20240421457A1

公开(公告)日：2024-12-19

申请号：US18817281

申请日：2024-08-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shengyun SHI ,  Zhijun GUO ,  Yulian ZHENG ,  Chengyou XING ,  Congsheng CHEN

IPC: H01M50/636 ,  H01M50/186

Abstract: A battery cell includes a housing, an electrode assembly, and a sealing member. The housing is provided with an electrolyte injection hole for injecting an electrolyte. The electrode assembly is accommodated in the housing. The sealing member includes a main body portion, a transition portion surrounding an outer side of the main body portion, and a connecting portion surrounding an outer side of the transition portion. The connecting portion is located on a side of the housing back away from the electrode assembly, at least part of the main body portion protrudes from a first surface of the connecting portion facing the housing and is accommodated in the electrolyte injection hole, and the connecting portion is connected to the housing to seal the electrolyte injection hole.

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：US20240097272A1

公开(公告)日：2024-03-21

申请号：US18518611

申请日：2023-11-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wanqiu MENG ,  Qian LIU ,  Yonghuang YE ,  Yulian ZHENG ,  Longfei XUE ,  Xiaoxi ZHANG

IPC: H01M50/30

CPC classification number: H01M50/394

Abstract: A gas-exhausting apparatus includes a gas-exhausting body and a gas-exhausting mechanism. The gas-exhausting mechanism includes a connecting assembly and a gas-ventilating member. The connecting assembly includes first and second connecting members. The first connecting member is provided with a first through hole for communicating with an inside of the battery cell. The second connecting member is provided with a second through hole for communicating with an outside of the battery cell. The first connecting member is configured to attach to a surface of the gas-ventilating member facing the inside of the battery cell. The second connecting member is configured to attach to a surface of the gas-ventilating member facing away from the inside of the battery cell. An orthographic projection of the first through hole on the gas-ventilating member and an orthographic projection of the second through hole on the gas-ventilating member are arranged to be staggered from each other.

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.