公开(公告)号：US20200006801A1

公开(公告)日：2020-01-02

申请号：US16272917

申请日：2019-02-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jiao CAO ,  Qifan ZOU ,  Guangbo LU ,  Shengwei WANG ,  Wenzhu XU

IPC: H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583

Abstract: The present disclosure provides a lithium-ion battery, and the lithium-ion battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte. The positive active material comprises a material with a chemical formula of LiaNixCoyM1-x-yO2, the negative active material comprises graphite, the OI value of the positive film represented by OIc and the OI value of the negative film represented by OIa satisfy a relationship: 0.05≤OIa/OIc≤10. By reasonably matching the OI value of the positive film represented by OIc and the OI value of the negative film represented by OIa and making OIa/OIc between 0.05 and 10, the dynamics performance of the positive electrode plate and the dynamics performance of the negative electrode plate can achieve an optimal match, the lithium-ion battery can have higher charging capability, and also have excellent cycle life and excellent safety performance during the long-term fast charging use.

公开(公告)号：US20200006802A1

公开(公告)日：2020-01-02

申请号：US16443371

申请日：2019-06-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenzhu XU ,  Chuanmiao YAN ,  Fuping LUO ,  Xinxin DU ,  Jiao CAO

IPC: H01M10/0525 ,  H01M10/04

Abstract: The present disclosure provides a lithium-ion battery, the lithium-ion battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte, the positive active material comprises a layered lithium-containing compound, the negative active material comprises graphite, the positive film and the negative film satisfy a relationship 0.3≤(OIc×PDc)/(OIa×PDa)≤20.0. The present disclosure can make the lithium-ion battery have smaller swelling and higher charging capability, and also make the lithium-ion battery have excellent cycle life and excellent safety performance during the long-term fast charging process.

公开(公告)号：US20240222753A1

公开(公告)日：2024-07-04

申请号：US18608314

申请日：2024-03-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yukun WU ,  Xiaoping ZHANG ,  Wenzhu XU

IPC: H01M50/169 ,  H01M50/103 ,  H01M50/15

CPC classification number: H01M50/169 ,  H01M50/103 ,  H01M50/15

Abstract: A top cap assembly includes a top cap plate, a mounting piece, and a protection film. The top cap plate includes an inner side and an outer side disposed opposite to each other along a thickness direction of the top cap plate, the inner side and the outer side are spaced apart from each other to form a receptacle in between, and the receptacle communicates with an outside space. The mounting piece is disposed protrusively in the receptacle and comprising a fixed end and a free end disposed opposite to each other. The fixed end is disposed on a wall of the receptacle, and the free end extends along the thickness direction of the top cap plate and is spaced apart from the wall of the receptacle to form a threading clearance. One end of the protection film is attached to the mounting piece through the threading clearance.

公开(公告)号：US20240258665A1

公开(公告)日：2024-08-01

申请号：US18634189

申请日：2024-04-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xihui WANG ,  Wenzhu XU

IPC: H01M50/586 ,  H01M50/533

CPC classification number: H01M50/586 ,  H01M50/533

Abstract: A battery cell, a battery and an electricity consuming apparatus are provided. The battery cell includes a cap assembly and an electrode assembly, the cap assembly includes a cap plate and an isolation member, and the isolation member is disposed on one side of the cap plate; the electrode assembly is disposed on a side of the isolation member facing away from the cap plate, the electrode assembly includes an electrode body and tabs protruding from the electrode body, and a protrusion connected with the electrode body is connected on a peripheral side of at least one of the tabs; wherein a clearance groove is provided on a surface of the isolation member facing away from the cap plate, and is configured to accommodate at least a portion of the protrusion.

公开(公告)号：US20240092211A1

公开(公告)日：2024-03-21

申请号：US18523933

申请日：2023-11-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qifan ZOU ,  Xihui WANG ,  Wenzhu XU ,  Xiaoming GE

IPC: B60L53/62 ,  B60L53/10 ,  B60L53/66 ,  B60L53/68

CPC classification number: B60L53/62 ,  B60L53/11 ,  B60L53/66 ,  B60L53/68

Abstract: The present application provides a method and a device for charging a secondary battery, a computer storage medium and electronic equipment. The charging method includes steps of: sending first charge information to a charging source by a battery management system, the first charge information includes a first charge power; performing a constant-power charging on the secondary battery by the charging source according to the first charge power; sending a plurality of pulse discharge information to the charging source by the BMS when a battery status parameter reaches a first predetermined value, each pulse discharge information includes a discharge power and a discharge duration; and performing multiple constant-power pulse discharges on the secondary battery by the charging source according to the discharge power and the discharge duration in the plurality of pulse discharge information.

公开(公告)号：US20230402689A1

公开(公告)日：2023-12-14

申请号：US18334532

申请日：2023-06-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Binjie TANG ,  Yongqiang ZHANG ,  Xiaoming GE ,  Wenzhu XU

IPC: H01M50/148 ,  H01M50/169 ,  H01M50/193 ,  H01M50/474 ,  H01M10/04

CPC classification number: H01M50/148 ,  H01M50/169 ,  H01M50/193 ,  H01M50/474 ,  H01M10/0404

Abstract: A battery cell includes a case having an opening and an end cover configured to cover the opening. The end cover comprises an end cover body and a support body. The end cover body is configured to be welded and fixed to the case. The support body is disposed on a bottom surface of the end cover body and is disposed along an edge of the end cover body in a circumferential direction. The support body is configured to abut against an inner side surface of the case.

公开(公告)号：US20230343958A1

公开(公告)日：2023-10-26

申请号：US18198844

申请日：2023-05-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xihui WANG ,  Wenzhu XU ,  Xiaoming GE

IPC: H01M10/0562 ,  H01M4/38 ,  H01M4/04 ,  H01M4/583 ,  H01M4/485 ,  H01M10/0525

CPC classification number: H01M4/583 ,  H01M4/0416 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/027 ,  H01M2220/20

Abstract: A negative electrode plate may comprise a negative electrode current collector and a negative electrode film layer provided on at least one surface of the negative electrode current collector; the negative electrode film layer may comprise a first region and a second region along the width direction, the first region may not comprise a solid electrolyte, while the second region may comprise a solid electrolyte.