公开(公告)号：US20240145839A1

公开(公告)日：2024-05-02

申请号：US18407472

申请日：2024-01-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huanji Liu ,  Ziyi Yin ,  Xin Sun ,  Haizu Jin ,  Fenggang Zhao

IPC: H01M50/253 ,  H01M4/66 ,  H01M10/42 ,  H01M10/647 ,  H01M50/209 ,  H01M50/51

CPC classification number: H01M50/253 ,  H01M4/662 ,  H01M10/42 ,  H01M10/647 ,  H01M50/209 ,  H01M50/51 ,  H01M2010/4292 ,  H01M2220/20

Abstract: A battery and an electrical device are provided. The battery includes at least one first battery cell and at least one second battery cell, an internal resistance of the first battery cell is greater than that of the second battery cell, and a heat transfer rate of the first battery cell is less than that of the second battery cell.

公开(公告)号：US20240072296A1

公开(公告)日：2024-02-29

申请号：US18501049

申请日：2023-11-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ruhu Liao ,  Gang Zeng ,  Fenggang Zhao ,  Ya Dai ,  Jianlei Wang

IPC: H01M10/04 ,  H01M50/46

CPC classification number: H01M10/0454 ,  H01M10/0404 ,  H01M10/0459 ,  H01M50/46

Abstract: Provided are an electrode assembly, a battery cell, a battery and an electrical device, belonging to the technical field of battery manufacturing. The electrode assembly comprises: a first electrode sheet, comprising a plurality of bending segments and a plurality of stacking segments arranged in layers, wherein each bending segment is configured to connect two adjacent stacking segments, the first electrode sheet has a first broken seam, and the first broken seam extends in the width direction of the first electrode sheet to break the first electrode sheet; and a plurality of second electrode sheets, wherein the polarity of the second electrode sheet is opposite to the polarity of the first electrode sheet, and each second electrode sheet is arranged between two adjacent stacking segments in the stacking direction of the plurality of stacking segments.

公开(公告)号：US20230318044A1

公开(公告)日：2023-10-05

申请号：US18328777

申请日：2023-06-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M50/46

CPC classification number: H01M10/0587 ,  H01M10/0525 ,  H01M50/461 ,  H01M2220/20

Abstract: An electrode assembly and a processing method and apparatus therefor, a battery cell, a battery, and a power consuming device are provided. The processing method includes: applying an adhesive on a preset part of a surface of a member to be coated, the adhesive forming a barrier layer, and the member to be coated including at least one of a cathode plate, a separator, and an anode plate; and winding the cathode plate, the anode plate, and the separator to form an electrode assembly. The barrier layer is located between the cathode active material layer and the anode active material layer adjacent to each other after the winding. The barrier layer blocks at least some ions de-intercalated from the cathode active material layer located on one side of the barrier layer from being intercalated into the anode active material layer located on the other side of the barrier layer.

公开(公告)号：US11664524B2

公开(公告)日：2023-05-30

申请号：US16436683

申请日：2019-06-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun Zeng ,  Fenggang Zhao ,  Chuanlian Chen ,  Yangzhi Huang ,  Pengfei Gao ,  Jihua Yao

IPC: H01M10/04 ,  H01M50/209 ,  H01M50/522 ,  H01M50/505 ,  H01M50/509

CPC classification number: H01M10/0431 ,  H01M50/209 ,  H01M50/505 ,  H01M50/509 ,  H01M50/522

Abstract: The present disclosure relates to a battery module and a battery pack. The battery module includes a plurality of battery units connected in series; at least two electrode output connecting pieces each disposed at an output end of the plurality of battery units; a plurality of bridging busbars, each connecting two battery units spaced by one or more other battery units among the plurality of battery units; and an adjacent busbar connecting two adjacent battery units among the plurality of battery units. An electrical connection path is formed in the battery module by the electrode output connecting pieces, the bridging busbars and the adjacent busbar. The battery module according to the present disclosure is applicable in diverse situations, and capable of improving safety performance and energy density.

公开(公告)号：US11456501B2

公开(公告)日：2022-09-27

申请号：US16663048

申请日：2019-10-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun Zeng ,  Fenggang Zhao ,  Xingdi Chen ,  Lei Wang ,  Linggang Zhou ,  Peng Wang ,  Derong Wang ,  Cong Bao

IPC: H01M50/20 ,  B65D21/02 ,  H01M50/249 ,  H01M50/242 ,  H01M50/244 ,  B60K1/04 ,  B60L50/60

Abstract: The present disclosure provides a lower box body, a battery box and a vehicle, the lower box body comprises a base body, a first protecting assembly, a mounting hole. The base body comprises a bottom plate portion, a side plate portion, eave portions. The first protecting assembly is provided at outside of the base body, fixed to the base body and is attached to the eave portion. The mounting hole penetrates the eave portion and the first protecting assembly. The first protecting assembly improves the entirety structural strength of the lower box. Because the mounting hole is formed by penetrating the eave portion and the first protecting assembly, the structural stability of the mounting location of the lower box body is improved, thereby making the mounting location of the lower box body not be prone to be deformed or damaged when the battery box is subjected to the external force.

公开(公告)号：US11050128B2

公开(公告)日：2021-06-29

申请号：US16666749

申请日：2019-10-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuqun Zeng ,  Fenggang Zhao ,  Yong Zhou ,  Zhijun Guo ,  Peng Wang

IPC: H01M2/30 ,  H01M2/06 ,  H01M2/26 ,  H01M50/543 ,  H01M50/172 ,  H01M50/531 ,  H01M50/15 ,  H01M50/528

Abstract: The present disclosure relates to a secondary battery and a manufacturing method of the secondary battery, and 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 provided with a through hole; and a current collecting member, including an extending portion and a connecting portion connected to the extending portion, wherein the connecting portion is located on an inner side of the cap plate and is directly connected to the tab, and the extending portion is adapted to extend toward the electrode terminal and protrude into the through hole, and is connected to the electrode terminal. The configuration of the secondary battery of the present disclosure is conducive to improving an energy density.

公开(公告)号：US20200091487A1

公开(公告)日：2020-03-19

申请号：US16517448

申请日：2019-07-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun ZENG ,  Fenggang Zhao ,  Shengtian CAI ,  Yangzhi HUANG ,  Chuanlian CHEN ,  Daohui LIU

IPC: H01M2/20

Abstract: The present disclosure provides a battery module, a busbar and a busbar assembly thereof. The busbar comprises a first connecting portion, a second connecting portion and a first main portion. The first connecting portion is connected to a first battery of the battery module, the second connecting portion is connected to a second battery. The first main portion connects the first connecting portion and the second connecting portion, and the first connecting portion and the second connecting portion are positioned at the same side of the first main portion in a transverse direction. The first connecting portion and the second connecting portion are spaced from each other in a longitudinal direction, and a first slit is formed between the first connecting portion and the second connecting portion. The first main portion is provided with a first notch, the first notch is communicated with the first slit.

公开(公告)号：US12080908B2

公开(公告)日：2024-09-03

申请号：US17564108

申请日：2021-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Siying Huang ,  Quankun Li ,  Shiyao Zhang ,  Jinmei Xu ,  Fenggang Zhao ,  Peng Wang

IPC: H01M50/271 ,  H01M50/143

CPC classification number: H01M50/271 ,  H01M50/143

Abstract: The present application relates to the field of an energy storage device, and more particularly, to a top cover assembly of a secondary battery, the secondary battery and an apparatus using a battery. The top cover assembly includes: a top cover sheet provided with an explosion-proof hole; an explosion-proof sheet, a position of the explosion-proof sheet corresponding to the explosion hole; and a fixing member, at least part of the fixing member being located between the top cover sheet and the explosion-proof sheet and connecting the top cover sheet and the explosion-proof sheet; where one of the explosion-proof hole and the fixing member is provided with a protrusion and the other is provided with a first groove, and the protrusion and the first groove are fixed.

公开(公告)号：US20240250283A1

公开(公告)日：2024-07-25

申请号：US18430512

申请日：2024-02-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu Xu ,  Siying Huang ,  Fenggang Zhao ,  Haizu Jin

IPC: H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/538 ,  H01M50/545 ,  H01M50/559 ,  H01M50/566

CPC classification number: H01M10/0431 ,  H01M10/0409 ,  H01M10/0422 ,  H01M50/107 ,  H01M50/152 ,  H01M50/538 ,  H01M50/545 ,  H01M50/559 ,  H01M50/566 ,  H01M2220/20

Abstract: A battery cell includes: a casing; an end cap assembly including an end cap body and an electrode terminal located on the end cap body; and an electrode assembly arranged in the casing and including a first electrode sheet and a second electrode sheet with opposite polarities; the first electrode sheet includes a first main portion and a first electrode tab protruding from the first main portion, and the second electrode sheet includes a second main portion and a second electrode tab protruding from the second main portion; an end of the winding body includes a first conductive region and a second conductive region, the first electrode tab is led out from the first conductive region, the second electrode tab is led out from the second conductive region, and adjacent first conductive region and second conductive region are arranged to be spaced along a radial direction of the winding body.

公开(公告)号：US11996545B2

公开(公告)日：2024-05-28

申请号：US17416026

申请日：2019-02-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Longfei Yang ,  Guobao Wang ,  Xiaomei Liu ,  Jiang Liu ,  Yongshou Lin ,  Fenggang Zhao

IPC: H01M4/134 ,  H01M4/02 ,  H01M4/133 ,  H01M4/136 ,  H01M4/36 ,  H01M4/38 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/42

CPC classification number: H01M4/134 ,  H01M4/133 ,  H01M4/366 ,  H01M4/382 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027 ,  H01M4/136 ,  H01M4/5825 ,  H01M2010/4292

Abstract: An electrode assembly and a lithium-ion battery are described. The electrode assembly includes a positive electrode plate, a separator, and a negative electrode plate, where the negative electrode plate includes a negative electrode current collector and a negative electrode active substance layer, the negative electrode plate further includes a lithium metal layer, the lithium metal layer is formed by a plurality of regular or irregular strip-shaped lithium-rich regions, and the plurality of lithium-rich regions present a discontinuous pattern of spaced distribution in a length direction of the negative electrode plate. The electrode assembly further satisfies that: negative electrode capacity per unit area/positive electrode capacity per unit area=1.2 to 2.1 and negative electrode capacity per unit area/(positive electrode capacity per unit area+capacity of the lithium metal layer on the surface of the negative electrode active substance layer per unit area× 80%)≥ 1.10.