公开(公告)号：US11101515B2

公开(公告)日：2021-08-24

申请号：US17137122

申请日：2020-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang Shi ,  Haizu Jin ,  Rui Yang ,  Fei Hu ,  Peng Wang ,  Yuqun Zeng ,  Yongshou Lin

IPC: H01M6/46 ,  H01M50/183 ,  H01M50/10 ,  H01M50/20

Abstract: The present disclosure provides a battery pack and a vehicle. The battery pack comprises a battery module, a box assembly and a first adhesive member. The battery module comprises first batteries arranged sequentially in a horizontal direction. The first battery comprises an electrode assembly and a case, and the electrode assembly is received in the case. The electrode assembly comprises a first electrode plate, a second electrode plate and a separator. The box assembly has a connection portion, and the connection portion is positioned at a side of the battery module in the vertical direction. An outer surface of the case comprises a first surface, and the first surface is connected with the connection portion via the first adhesive member. An area A of the first surface and an elastic modulus B of the first adhesive member satisfy a relationship: 0.02 cm2/MPa≤A/B≤9 cm2/MPa.

公开(公告)号：US11043715B2

公开(公告)日：2021-06-22

申请号：US17111126

申请日：2020-12-03

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Lei Wang ,  Linggang Zhou ,  Xingdi Chen ,  Peng Wang ,  Derong Wang

IPC: H01M50/20 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6554 ,  B60K1/04

Abstract: The present disclosure relates to a casing for a battery pack and a battery pack. The casing includes a receiving space and an opening in communication with the receiving space, the receiving space is formed by a wall portion of the casing, and the wall portion is formed from two or more stacked base plates, between which a plurality of cavities are formed. By forming a plurality of cavities in the wall portion, the casing for a battery pack provided by the present disclosure not only can improve the bearing capacity and the impact resistance of the casing, but also can achieve a thermal management of the battery assembly by filling the plurality of cavities with a phase change material or cooling liquid, which can further improve the mechanical property of the casing with a relatively light weight and relatively high reliability.

公开(公告)号：US10826047B2

公开(公告)日：2020-11-03

申请号：US15978447

申请日：2018-05-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhijun Guo ,  Jie Zhang ,  Peng Wang ,  Taosheng Zhu

IPC: H01M2/26

Abstract: The present disclosure provides a rechargeable battery, including an electrode assembly and a connecting member. The electrode assembly includes an electrode assembly body and an electrode tab extending from the electrode assembly body. The connecting member includes a guiding plate, a first connecting plate and a second connecting plate respectively connected to the guiding plate. The guiding plate extends along a width direction. The first connecting plate extends away from the guiding plate along the width direction. The electrode tab is bent with respect to a longitudinal direction and is connected to the first connecting plate. At least a part of the guiding plate protrudes toward the electrode assembly body with respect to the first connecting plate so as to form a protrusion, which abuts against the electrode assembly. The rechargeable battery of the present disclosure can improve the energy density.

公开(公告)号：US10784610B2

公开(公告)日：2020-09-22

申请号：US16515951

申请日：2019-07-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianwei Li ,  Zhiqin Weng ,  Shengshen Ruan ,  Linggang Zhou ,  Peng Wang

IPC: H01R13/20 ,  H01R13/42 ,  H01R13/502

Abstract: The present disclosure provides a conductive connection structure, a multifunctional high-voltage connector and a battery product, the conductive connection structure comprises: a main body portion; and two conductive connection portions. The main body portion comprises: a tube body having openings; and a conductive fusing body. The conductive connection portion has: a first contact segment connected to the conductive fusing body and sealing a corresponding opening; a second contact segment; and a transitional connection segment. It is not necessary to additionally provide the package plate, thereby making the structure of the conductive connection structure simple and the volume of the conductive connection structure small, reducing the assembling steps, and improving the space utilization of the multifunctional high-voltage connector. When the upper cover and the pedestal are assembled, the second contact segment is directly inserted into the corresponding mating terminal, thereby further reducing the connection resistance in the high-voltage circuit.

公开(公告)号：US10673056B2

公开(公告)日：2020-06-02

申请号：US15669936

申请日：2017-08-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiang Li ,  Rulai Cai ,  Peng Wang ,  Wei Yang

IPC: H01M2/30 ,  H01M2/34 ,  H01M2/04 ,  H01M2/06

Abstract: A secondary battery, including an electrode assembly, a positive terminal, a negative terminal, a top cover plate, a conductive plate and a contact plate, wherein the electrode assembly includes a positive electrode plate, a negative electrode plate and a separator provided therebetween, the positive electrode plate is electrically connected with the positive terminal, and the negative electrode plate is electrically connected with the negative terminal, the contact plate is attached to the negative terminal, the top cover plate is insulated from the negative terminal and is electrically connected with the positive terminal, the conductive plate is fixedly connected with the top cover plate, the contact plate is configured to deform under gas pressure to be in contact with the conductive plate when an internal pressure of the secondary battery exceeds a reference pressure.

公开(公告)号：US10658647B2

公开(公告)日：2020-05-19

申请号：US15894779

申请日：2018-02-12

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quankun Li ,  Peng Wang ,  Taosheng Zhu ,  Baisong Chen

IPC: H01M2/22 ,  H01M2/06 ,  H01M2/04 ,  H01M2/30 ,  H01M2/20 ,  H01M10/42 ,  H01M10/052 ,  H01M2/26

Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes: a shell having an opening; an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a cap assembly including a cap plate and a first electrode terminal; a lower insulator located at a side of the cap plate away from the terminal board; and a wiring board including a main body portion and an extension portion, wherein the main body portion is located at a side of the lower insulator away from the cap plate and connected to the first electrode plate, the extension portion extends into the electrode lead-out hole and connected to the first electrode terminal, the first electrode plate is electrically connected to the first electrode terminal through the wiring board, and the first electrode terminal does not extend beyond a lower surface of the lower insulator.

公开(公告)号：US20190237743A1

公开(公告)日：2019-08-01

申请号：US15927515

申请日：2018-03-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yong Zhou ,  Zhijun Guo ,  Peng Wang

IPC: H01M2/36 ,  H01M2/04 ,  H01M2/12 ,  H01M10/04

CPC classification number: H01M2/365 ,  H01M2/04 ,  H01M2/0456 ,  H01M2/12 ,  H01M2/36 ,  H01M10/0431

Abstract: The present disclosure relates to a cap assembly and a power battery. The cap assembly comprises a cap plate including a top surface, a bottom surface opposed to the top surface in a thickness direction and a liquid injection hole penetrating through the cap plate from the top surface to the bottom surface, the liquid injection hole having an inlet provided on the top surface and an outlet provided on the bottom surface; and a blocking member provided on the bottom surface, a projection of the blocking member in the thickness direction at least partially covers the outlet, wherein a fluid channel is formed between the blocking member and the cap plate, and the fluid channel communicates with the outlet of the liquid injection hole. The cap assembly can be applied to the power battery.

公开(公告)号：US20190214619A1

公开(公告)日：2019-07-11

申请号：US16058510

申请日：2018-08-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiang LI ,  Peng Wang ,  Chengyou XING ,  Rulai Cai

IPC: H01M2/12 ,  H01M10/0525

CPC classification number: H01M2/1241 ,  H01M2/12 ,  H01M10/0525 ,  H01M2220/20

Abstract: The present disclosure relates to a vent for a secondary battery top cover, a top cover assembly, a secondary battery and a vehicle. The vent includes a flat base and a protrusion protruding outward with respect to flat base. The protrusion has a main nick and at least one branch nick connected to at least one end of the main nick. An angle formed between the main nick and the branch nick is more than zero. When the pressure inside the case increases excessively, gas causes stress concentration at the protrusion such that the vent is torn along the main nick and the at least one branch nick, thereby releasing the gas in the case, reducing explosion risk of the secondary battery, and improving safety of the secondary battery.

公开(公告)号：US20190214612A1

公开(公告)日：2019-07-11

申请号：US15969652

申请日：2018-05-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhijun GUO ,  Jie Zhang ,  Taosheng Zhu ,  Peng Wang ,  Guowei Li

IPC: H01M2/04 ,  H01M2/06 ,  H01M2/30 ,  H01M10/02

Abstract: The present disclosure provides a battery cap assembly, a secondary battery and a battery module. The battery cap assembly comprises a cap plate, a first electrode terminal and a first sealing member. The cap plate includes a first terminal hole. The first electrode terminal includes a first protruding portion and a first base portion, a cross-sectional area of the first protruding portion is larger than a cross-sectional area of the first terminal hole. The first sealing member includes a first main portion, the first main portion includes a first through-hole. The first protruding portion is used for welding with a first connecting piece to form a welding portion, a projection of the welding portion is positioned in the first through-hole. The secondary battery comprises a case, the battery cap assembly and an electrode assembly. The battery module comprises the first connecting piece and the secondary batteries.

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.