公开(公告)号：US11967725B2

公开(公告)日：2024-04-23

申请号：US17878293

申请日：2022-08-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaobo Chen ,  Fenggang Zhao ,  Yao Li ,  Peng Wang ,  Zhanyu Sun ,  Yongshou Lin

IPC: H01M50/20 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M50/342 ,  H01M50/502 ,  H01M10/615 ,  H01M10/623 ,  H01M10/643 ,  H01M10/647 ,  H01M10/653 ,  H01M10/6556 ,  H01M50/209 ,  H01M50/247 ,  H01M50/249 ,  H01M50/367 ,  H01M50/375 ,  H01M50/55

CPC classification number: H01M50/20 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M50/3425 ,  H01M50/502 ,  H01M10/615 ,  H01M10/623 ,  H01M10/643 ,  H01M10/647 ,  H01M10/653 ,  H01M10/6556 ,  H01M50/209 ,  H01M50/247 ,  H01M50/249 ,  H01M50/342 ,  H01M50/367 ,  H01M50/375 ,  H01M50/55 ,  H01M2220/20 ,  Y02E60/10

Abstract: Embodiments of the present application provide a case of a battery, a battery, a power consumption device, and a method and device for preparing a battery. The case includes: an electrical chamber configured to accommodate a plurality of battery cells and a bus component, where at least one battery cell of the plurality of battery cells includes a pressure relief mechanism; a thermal management component configured to accommodate a fluid to adjust temperatures of the plurality of battery cells; and a collection chamber configured to collect, when the pressure relief mechanism is actuated, emissions from the battery cell provided with the pressure relief mechanism; where the thermal management component is configured to isolate the electrical chamber from the collection chamber. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

公开(公告)号：US20230411744A1

公开(公告)日：2023-12-21

申请号：US18237902

申请日：2023-08-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang Zhao ,  Yuqun Zheng ,  Jian Guo ,  Quankun LI ,  Peng Wang

IPC: H01M50/148 ,  H01M50/55 ,  H01M50/553 ,  H01M50/176 ,  H01M50/593 ,  H01M50/588

CPC classification number: H01M50/148 ,  H01M50/55 ,  H01M50/588 ,  H01M50/176 ,  H01M50/593 ,  H01M50/553

Abstract: The present disclosure relates to a cap assembly and a secondary battery. The cap assembly includes a cap plate provided with an electrode lead-out hole; an electrode terminal, covering the electrode lead-out hole and including a main body, wherein the main body is provided with a recess on a side wall; an isolating member including a receiving portion, wherein the main body is received in the receiving portion; and a protrusion, connected to an inner wall of the isolating member and extending towards an axis of the electrode lead-out hole, wherein the protrusion is received in the recess so as to prevent the main body from rotating relative to the isolating member. The cap assembly according to the embodiments of the present application can improve an overcurrent capacity and stability of the electrode terminal.

公开(公告)号：US11777162B2

公开(公告)日：2023-10-03

申请号：US16976752

申请日：2019-09-12

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang Zhao ,  Yuqun Zeng ,  Jian Guo ,  Quankun Li ,  Peng Wang

IPC: H01M50/148 ,  H01M50/55 ,  H01M50/553 ,  H01M50/176 ,  H01M50/593 ,  H01M50/588

CPC classification number: H01M50/148 ,  H01M50/176 ,  H01M50/55 ,  H01M50/553 ,  H01M50/588 ,  H01M50/593

Abstract: The present disclosure relates to a cap assembly and a secondary battery. The cap assembly includes a cap plate provided with an electrode lead-out hole; an electrode terminal, covering the electrode lead-out hole and including a main body, wherein the main body is provided with a recess on a side wall; an isolating member including a receiving portion, wherein the main body is received in the receiving portion; and a protrusion, connected to an inner wall of the isolating member and extending towards an axis of the electrode lead-out hole, wherein the protrusion is received in the recess so as to prevent the main body from rotating relative to the isolating member. The cap assembly according to the embodiments of the present application can improve an overcurrent capacity and stability of the electrode terminal.

公开(公告)号：US20230163310A1

公开(公告)日：2023-05-25

申请号：US18099243

申请日：2023-01-19

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuqun ZENG ,  Fenggang Zhao ,  Qingyuan Jiang ,  Bo Han ,  Jiacal Cai ,  Qinglin Bai ,  Yuqian Wen ,  Zhiyang Wu

IPC: H01M4/66 ,  H01M50/531 ,  H01M50/553 ,  H01M50/55 ,  H01M50/176

CPC classification number: H01M4/661 ,  H01M50/531 ,  H01M50/553 ,  H01M50/55 ,  H01M50/176

Abstract: The present disclosure relates to a secondary battery and a method of manufacturing the secondary battery. The secondary battery includes: a case; an electrode assembly, accommodated in the case and including a main body and a tab connected to the main body; a cap plate, coupled to the case; an electrode terminal, located on an outer side of the cap plate and including a first metal layer and a second metal layer disposed one on top of another; and a current collecting member, connected between the tab and the electrode terminal.

公开(公告)号：US11594791B2

公开(公告)日：2023-02-28

申请号：US16666754

申请日：2019-10-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuqun Zeng ,  Fenggang Zhao ,  Qingyuan Jiang ,  Bo Han ,  Jiacai Cai ,  Qinglin Bai ,  Yuqian Wen ,  Zhiyang Wu

IPC: H01M50/543 ,  H01M4/66 ,  H01M50/172 ,  H01M50/531

Abstract: The present disclosure relates to a secondary battery and a method of manufacturing the secondary battery. The secondary battery includes: a case; an electrode assembly, accommodated in the case and including a main body and a tab connected to the main body; a cap plate, coupled to the case; an electrode terminal, located on an outer side of the cap plate and including a first metal layer and a second metal layer disposed one on top of another; and a current collecting member, connected between the tab and the electrode terminal.

公开(公告)号：US20220246975A1

公开(公告)日：2022-08-04

申请号：US17539225

申请日：2021-12-01

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang Zhao ,  Junda Tu ,  Xiaobo Chen ,  Dan Shen ,  Xuehui Wang

IPC: H01M10/04 ,  H01M10/613 ,  H01M10/647 ,  H01M10/653 ,  H01M10/658

Abstract: The disclosure relates to a battery module and the technical field of energy storage. The battery module comprises: a frame having an accommodation space; and a plurality of batteries successively arranged in the accommodation space in a thickness direction of the battery, wherein a partition is arranged between adjacent batteries, wherein the partition has a compressibility and a coefficient of compressibility δ1 at a pressure equal to or smaller than 2 MPa, which meets a relation C0×δ1≤A0×0.2, wherein C0 is an initial thickness of the partition, and A0 is an initial thickness of the battery.

公开(公告)号：US11296385B2

公开(公告)日：2022-04-05

申请号：US17353933

申请日：2021-06-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haizu Jin ,  Linggang Zhou ,  Peng Wang ,  Dongyang Shi ,  Xingdi Chen ,  Fei Hu ,  Fenggang Zhao ,  Yanhuo Xiang ,  Yongshou Lin

IPC: H01M50/209 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/533 ,  H01M50/591

Abstract: The embodiments of the present disclosure provide a battery module and a battery pack. A battery module includes: a cooling component; and a battery group, comprising secondary batteries disposed side by side in a first direction and each including a case having an accommodating hole, an electrode assembly disposed in the accommodating hole, and a cap assembly, the electrode assembly including two end faces disposed opposite to each other in a second direction intersecting the first direction and an electrode tab extending from each end face. The secondary batteries each includes two sides opposite to each other in the second direction, the cooling component is disposed on at least one of the two sides, the cooling component and the end face are respectively disposed on two sides of the case in the second direction, and the cooling component is connected and fixed to each of the secondary batteries.

公开(公告)号：US20240079729A1

公开(公告)日：2024-03-07

申请号：US18505140

申请日：2023-11-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jun Ni ,  Fenggang Zhao ,  Shengwu Zhang ,  Minghao Tang ,  Wenfa Lin ,  Jie Ye

IPC: H01M50/46 ,  B65H18/08 ,  H01M10/04 ,  H01M50/403 ,  H01M50/463 ,  H05B1/02

CPC classification number: H01M50/46 ,  B65H18/08 ,  H01M10/0409 ,  H01M10/0431 ,  H01M50/403 ,  H01M50/463 ,  H05B1/023 ,  B65H2511/212 ,  B65H2513/11 ,  H01M2220/20

Abstract: The present application provides an electrode assembly and a processing method and apparatus therefor, a battery cell, a battery, and a power consuming device. The electrode assembly includes: a cathode plate, an anode plate, and a separator, where the separator is configured to separate the cathode plate from the anode plate, a closed-pore portion is provided in part of the region of the separator, and the closed-pore portion is configured to block at least some ions de-intercalated from the cathode plate located on one side of the closed-pore portion from being intercalated into the anode plate located on the other side of the closed-pore portion. Heating the separator to form the closed-pore portion can reduce the occurrence of lithium precipitation.

公开(公告)号：US11335979B2

公开(公告)日：2022-05-17

申请号：US16708216

申请日：2019-12-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yulian Zheng ,  Chengyou Xing ,  Peng Wang ,  Taosheng Zhu ,  Fenggang Zhao

IPC: H01M4/00 ,  H01M50/538 ,  H01M50/50 ,  H01M50/148 ,  H01M50/155 ,  H01M50/529 ,  H01M50/531 ,  H01M50/543 ,  H01M10/04

Abstract: The present disclosure provides a secondary battery which comprises a cap plate, an electrode assembly and a first protecting piece. The cap plate comprises a first electrode terminal. The electrode assembly comprises a main body and a first electrode tab. The first electrode tab is electrically connected with the first electrode terminal. The first electrode tab includes a first connecting portion and a first bending portion, the first connecting portion is electrically connected with the first electrode terminal, and the first bending portion connects the main body and the first connecting portion. The first protecting piece is fixed to a bottom of the first connecting portion. The first protecting piece includes a main portion and a first curve portion, the first curve portion is connected with the main portion and is curved relative to the main portion. The first bending portion is bent downwardly along the first curve portion.

公开(公告)号：US11264610B2

公开(公告)日：2022-03-01

申请号：US16422860

申请日：2019-05-24

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang Zhao ,  Yongshou Lin ,  Zhenhua Li ,  Haizu Jin ,  Xiaowen Zhang

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/36

Abstract: This application relates to a battery comprising a positive electrode plate, a separator, and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active material coated on at least one surface of the positive electrode current collector, and wherein the underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material and a first conductive material, and the first polymer material comprises fluorinated polyolefin and/or chlorinated polyolefin polymer material. The battery has good safety and improved electrical properties.