公开(公告)号：US20220399579A1

公开(公告)日：2022-12-15

申请号：US17884538

申请日：2022-08-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huang TANG ,  Ming ZHANG ,  Hao DONG ,  Qifan WU ,  De LIN

IPC: H01M10/42 ,  H01M4/62 ,  C08F220/56

Abstract: A secondary battery includes a positive electrode sheet which includes a positive-electrode current collector, a positive-electrode active material layer, and a coating layer arranged between the positive-electrode current collector and the positive-electrode active material layer. The coating layer includes a conductive agent and a copolymer.

公开(公告)号：US20180226685A1

公开(公告)日：2018-08-09

申请号：US15891197

申请日：2018-02-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Feng JU ,  Shaowei FENG ,  Changlong HAN ,  Xiaochong ZHOU ,  Ming ZHANG

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0525

Abstract: The present disclosure provides an electrolyte and a secondary battery. The electrolyte comprises: a non-aqueous organic solvent; an electrolyte salt dissolved in the non-aqueous organic solvent; and an additive dissolved in the non-aqueous organic solvent. The additive comprises a first additive, the first additive is selected from boron phosphate represented by formula 1. When the electrolyte of the present disclosure is applied in the secondary battery, the performances of the secondary battery under high temperature environment can be effectively improved.

公开(公告)号：US20240047683A1

公开(公告)日：2024-02-08

申请号：US18487613

申请日：2023-10-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Tongxian ZHANG ,  Ming ZHANG

IPC: H01M4/62 ,  H01M4/04 ,  H01M10/052

CPC classification number: H01M4/622 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/0411 ,  H01M10/052 ,  H01M2004/027

Abstract: A negative electrode plate includes a negative current collector and a negative film layer located on a surface of the negative current collector. The negative film layer has a length direction consistent with a length direction of the negative current collector and a width direction consistent with a width direction of the negative current collector. A cross section of the negative film layer perpendicular to the length direction includes a uniform thickness region located at a middle portion in the width direction and edge regions located at two ends in the width direction. Either of the edge regions has a thickness continuously decreasing in a direction from the uniform thickness region to the edge region. A width a of either of the two edge regions and an average thickness d of the uniform thickness region satisfy a/d≤1.5 and d≤300 μm.

公开(公告)号：US20240021864A1

公开(公告)日：2024-01-18

申请号：US18449311

申请日：2023-08-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ming ZHANG ,  Qifan WU

IPC: H01M10/056 ,  H01M10/04 ,  H01M50/204

CPC classification number: H01M10/056 ,  H01M10/045 ,  H01M50/204

Abstract: An electrolyte, a secondary battery, a battery, and an electrical device are described. The electrolyte comprises a C2-C4 alkene substituted with a halogen atom and/or a partially halogenated saturated polyalkene. By adding the C2-C4 alkene substituted with a halogen atom and/or the partially halogenated saturated polyalkene to the electrolyte, an electrochemical reduction reaction may produce on a surface of a negative electrode active material to generate a solid electrolyte interphase; so as to improve a low temperature performance and service life.

公开(公告)号：US20230402608A1

公开(公告)日：2023-12-14

申请号：US18458149

申请日：2023-08-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Tongxian ZHANG ,  Ming ZHANG

IPC: H01M4/62 ,  H01M4/139 ,  H01M4/04

CPC classification number: H01M4/622 ,  H01M4/623 ,  H01M4/139 ,  H01M4/0404 ,  H01M2004/027

Abstract: A negative electrode plate includes a current collector and a negative electrode film layer disposed on at least one surface of the current collector. The negative electrode film layer includes a negative electrode active material and an emulsion-type binder. At least a portion of the emulsion-type binder is in irregular film-like distribution on surface of the negative electrode active material.

公开(公告)号：US20230369598A1

公开(公告)日：2023-11-16

申请号：US18208350

申请日：2023-06-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qifan WU ,  Ming ZHANG

IPC: H01M4/62 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M4/622 ,  H01M4/0404 ,  H01M10/0525 ,  H01M2004/028

Abstract: The present disclosure provides a positive electrode slurry containing polyether polyol, where the polyether polyol has the following constitutional formula:






where R1, R2, R3, R4, R5, and R6 are as defined in the specification.

公开(公告)号：US20230369595A1

公开(公告)日：2023-11-16

申请号：US18340019

申请日：2023-06-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qifan WU ,  Ming ZHANG

IPC: H01M4/62 ,  H01M4/58 ,  H01M4/136 ,  C07C43/23

CPC classification number: H01M4/62 ,  H01M4/5825 ,  H01M4/136 ,  C07C43/23 ,  H01M2004/021

Abstract: A positive electrode slurry contains polyether polyol, where the polyether polyol has the following constitutional formula:




where R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, and Y are as defined in the specification.

公开(公告)号：US20230361303A1

公开(公告)日：2023-11-09

申请号：US18352961

申请日：2023-07-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qifan WU ,  Ming ZHANG

IPC: H01M4/62 ,  C09D5/24 ,  C09D171/02 ,  C09D7/61 ,  H01M4/58 ,  H01M4/136

CPC classification number: H01M4/62 ,  C09D5/24 ,  C09D171/02 ,  C09D7/61 ,  H01M4/5825 ,  H01M4/136 ,  H01M2004/028

Abstract: A positive electrode slurry containing polyether polyol, where the polyether polyol has the following constitutional formula:




where n1, n2, n3, R1, R2, R3, R4, R5, R6, B1, and B2 are as defined in the specification are described. The addition of the polyether polyol described in this application can increase a coating weight of positive electrode plates, thereby increasing energy density of batteries.

公开(公告)号：US20230299300A1

公开(公告)日：2023-09-21

申请号：US18069170

申请日：2022-12-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ming ZHANG ,  Tongxian ZHANG ,  Qifan WU

IPC: H01M4/62 ,  H01M4/58 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  C08K3/32 ,  C08K3/11

CPC classification number: H01M4/628 ,  H01M4/5825 ,  H01M4/623 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  C08K3/32 ,  C08K3/11 ,  C08K2003/328 ,  C08K2003/324

Abstract: A positive electrode slurry includes a lithium-containing phosphate material, a first positive electrode additive, a second positive electrode additive, and a binder. The first positive electrode additive includes at least one of a compound represented by structural formula 1 or a compound represented by structural formula 2 below. R1 is selected from C2-C4 alkylene, alkenylene, and derivatives thereof, substituted or unsubstituted by halogen. R2 and R3 are each independently alkyl, alkenyl, alkynyl, or aryl, substituted or unsubstituted by halogen. The binder includes a polymer including a repeating unit represented by structural formula 3 below. A pH value of the second positive electrode additive is greater than or equal to 10.0.

公开(公告)号：US20230231137A1

公开(公告)日：2023-07-20

申请号：US18120438

申请日：2023-03-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qifan WU ,  Ming ZHANG ,  Yacheng LIU ,  Ziyi YIN ,  Tongxian ZHANG

IPC: H01M4/62 ,  H01M4/525 ,  C08G65/327 ,  C08G65/14 ,  C08G65/24

CPC classification number: H01M4/62 ,  H01M4/525 ,  C08G65/327 ,  C08G65/14 ,  C08G65/24 ,  H01M2004/028

Abstract: Provided is a positive electrode slurry comprising a polyether phosphate, wherein the polyether phosphate may comprise at least the following structural units:




and a structural unit (IV) that is a phosphate group,



A being hydrogen, halogen or haloalkyl; B is hydroxyl, R, OR, or ROR′, the R and R′ being each independently a linear or branched alkyl group containing 1 to 8 carbons; and E is phenyl, alkyl-substituted phenyl, ether-substituted phenyl, or halophenyl.