公开(公告)号：US12119503B2

公开(公告)日：2024-10-15

申请号：US18237902

申请日：2023-08-25

Applicant: Contemporary Amperex Technology Co., Limited

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

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

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：US11721811B2

公开(公告)日：2023-08-08

申请号：US17132506

申请日：2020-12-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yaping Huang ,  Mingkui Guo ,  Yaohui Wang ,  Yongshou Lin ,  Fenggang Zhao

IPC: H01M4/66 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/661 ,  H01M4/133 ,  H01M4/134 ,  H01M4/366 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: The present application relates to the electrochemical field, and in particular, to a negative electrode plate and a secondary battery including the electrode plate. The present application provides a negative electrode plate. The negative electrode plate includes a negative electrode current collector, a first negative electrode active substance layer disposed on at least one surface of the negative electrode current collector, and a second negative electrode active substance layer disposed on the first negative electrode active substance layer. The first negative electrode active substance layer includes a first negative electrode active substance, and the second negative electrode active substance layer includes a second negative electrode active substance. The first negative electrode active substance satisfies 1 GPa≤Young's modulus≤10 GPa, and the second negative electrode active substance satisfies 11 GPa≤Young's modulus≤30 GPa.

公开(公告)号：US11616251B2

公开(公告)日：2023-03-28

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 ,  H01M50/293 ,  H01M50/209 ,  H01M10/625 ,  H01M50/291

Abstract: The disclosure provides a battery module. 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：US11450916B2

公开(公告)日：2022-09-20

申请号：US17113025

申请日：2020-12-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M50/20 ,  H01M50/502 ,  H01M50/342 ,  H01M10/643 ,  H01M10/6556 ,  H01M10/647

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：US11223063B2

公开(公告)日：2022-01-11

申请号：US16468946

申请日：2018-12-04

Applicant: Contemporary Amperex Technology Co., Limited

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

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

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：US20250105455A1

公开(公告)日：2025-03-27

申请号：US18974830

申请日：2024-12-10

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

Inventor： Hu Xu ,  Haizu Jin ,  Shaojun Niu ,  Fenggang Zhao ,  Yuqun Zeng

IPC: H01M50/474 ,  B60L50/64 ,  H01M4/70 ,  H01M50/103 ,  H01M50/15

Abstract: This utility model relates to an electrode assembly, a battery cell, a battery, and an electric device. An electrode assembly includes an anode electrode plate and a cathode electrode plate. At least one side of the anode current collector is coated with an anode active substance layer. At least one side of the cathode current collector is coated with a cathode active substance layer and an additional layer. In a plane perpendicular to the stacking direction of the anode electrode plate and the cathode electrode plate, a projection of the anode active substance layer covers a projection of the cathode active substance layer and partially covers a projection of the additional layer. A battery includes the battery cells. An electric device includes the battery cells or the foregoing battery. The electrode assembly, battery cell, battery, and electric device can mitigate or reduce electrode plate cracking.

公开(公告)号：US12062750B1

公开(公告)日：2024-08-13

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: H01M50/559 ,  H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/179 ,  H01M50/538 ,  H01M50/545 ,  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：US11780645B2

公开(公告)日：2023-10-10

申请号：US16663058

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

IPC: B65D21/02 ,  H01M50/249 ,  H01M50/242 ,  H01M50/202 ,  B60L50/60 ,  B60L50/64 ,  B60K1/04

CPC classification number: B65D21/0217 ,  H01M50/202 ,  H01M50/242 ,  H01M50/249 ,  B60K1/04 ,  B60L50/64 ,  B60L50/66 ,  H01M2220/20 ,  Y02E60/10 ,  Y02T10/70

Abstract: The present disclosure provides a battery box and a vehicle, the battery box comprises an upper box body, a lower box body, a connecting member, a fixing member. The upper box body comprises a first eave portion, the lower box body comprises a second eave portion. The first eave portion is provided with a first connecting hole, the second eave portion is provided with a second connecting hole and a mounting hole. The connecting member passes through the first connecting hole and the second connecting hole to connect the upper box body and the lower box body. The fixing member passes through the mounting hole to make the lower box body mounted to external equipment, compared with the conventional battery box, the lower box body is equivalent to the arrangement of eliminating the third eave portion, it simplifies the structure and reduces the weight, thereby improving the energy density.

公开(公告)号：US10573872B2

公开(公告)日：2020-02-25

申请号：US15917296

申请日：2018-03-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M4/00 ,  H01M2/26 ,  H01M2/20 ,  H01M2/24 ,  H01M2/04 ,  H01M2/30 ,  H01M10/04

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

公开(公告)号：US20240322372A1

公开(公告)日：2024-09-26

申请号：US18519060

申请日：2023-11-26

Applicant: Contemporary Amperex Technology Co., Limited ,  SINOMA LITHIUM BATTERY SEPARATOR (CHANGDE) CO., LTD.

Inventor： Jianrui Yang ,  Fenggang Zhao ,  Lianguang Wang ,  Tianle Yang

IPC: H01M50/451 ,  H01M50/406 ,  H01M50/417

CPC classification number: H01M50/451 ,  H01M50/406 ,  H01M50/417

Abstract: The present application provides a separator and a preparation method thereof, an electrochemical device, an electrochemical apparatus and a powered device. The separator comprises a base film, the base film has a tensile energy per unit thickness of ≥1.8 J/10 μm in both MD direction and TD direction, and an elongation of ≥150% in both MD direction and TD direction, and the thickness of the base film is 2 μm˜40 μm.