公开(公告)号：US20240052110A1

公开(公告)日：2024-02-15

申请号：US18381178

申请日：2023-10-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianghui LIN ,  Yanjie ZHAO ,  Xing LI ,  Haizu JIN

IPC: C08G79/14 ,  H01M4/62

CPC classification number: C08G79/14 ,  H01M4/623 ,  H01M2220/20

Abstract: The present application relates to a binder compound of formula (I), a method for preparing the same, and an electrode sheet comprising the same. In formula (I), R1, R2, and R3 each independently represents an unsubstituted or substituted linear or branched alkyl with 1-6 carbon atoms, or an unsubstituted or substituted aryl with 6-20 carbon atoms; R4 represents —COOM; R5 represents a bridging oxo or bridging imino; each M independently represents one of Li, Na, K, Rb, and Cs; Z represents a linear or branched alkylene with 1-6 carbon atoms; m is an integer selected from 7,600 to 47,000; n is an integer selected from 1,520 to 94,000; and m/n=0.1-10.

公开(公告)号：US20230336014A1

公开(公告)日：2023-10-19

申请号：US18329278

申请日：2023-06-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianghui LIN ,  Yanjie ZHAO ,  Xing LI ,  Haizu JIN

IPC: H02J7/00 ,  H01M4/13 ,  H01M10/44

CPC classification number: H02J7/0069 ,  H02J7/0048 ,  H02J7/00712 ,  H01M4/13 ,  H01M10/44 ,  H01M2004/028

Abstract: A method for supplementing lithium for a secondary battery includes performing a first round of lithium-supplementing charge and discharge on the secondary battery during routine charge-and-discharge cycles of the secondary battery if a capacity of the secondary battery has reduced by k1 in comparison with an initial capacity and performing a round of lithium-supplementing charge and discharge on the secondary battery after the first round of lithium-supplementing charge and discharge if the capacity of the secondary battery has reduced by k2 in comparison with the capacity achieved after a previous round of lithium-supplementing charge and discharge. k1 and k2 each are in a range from 1.5% to 17%. In a round of lithium-spplementing charge and discharge, a number of times of charge and discharge is at least one and a charge cut-off voltage is in a range from 4.45 V to 5 V.

公开(公告)号：US20240347859A1

公开(公告)日：2024-10-17

申请号：US18750818

申请日：2024-06-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianghui LIN ,  Yanjie ZHAO ,  Xing LI ,  Haizu JIN

IPC: H01M50/446 ,  H01M50/46 ,  H01M50/491

CPC classification number: H01M50/446 ,  H01M50/46 ,  H01M50/491

Abstract: A polymer-modified porous material, a membrane electrode, and applications thereof are disclosed. The polymer-modified porous material includes a porous material and a plurality of surface groups attached to the porous material; each of the surface groups includes a linking group and an adhesive group that are attached in sequence; the linking group has a structure represented by a structural unit I, wherein represents that O is linked to the porous material; the number of the structural units I in each of the surface groups is independent from each other; the total number n of moles of the structural units I in the polymer-modified porous material is 1,000-10,000; and the total number m of moles of the adhesive groups is 10-1,000, and n/m=10-1,000. The problem of serious self-discharge of existing membrane electrodes is alleviated.

公开(公告)号：US20220359879A1

公开(公告)日：2022-11-10

申请号：US17866509

申请日：2022-07-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianghui LIN ,  Yanjie ZHAO ,  Xing LI ,  Haizu JIN

IPC: H01M4/62 ,  C08F10/14 ,  C08G61/10

Abstract: A binder includes a copolymer including a building block (I) and a building block (II) The building block (I) is formed by copolymerizing a building block (i) and a building block (ii)

公开(公告)号：US20240313203A1

公开(公告)日：2024-09-19

申请号：US18676871

申请日：2024-05-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianghui LIN ,  Yanjie ZHAO ,  Xing LI ,  Haizu JIN

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M50/249

CPC classification number: H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M50/249 ,  H01M2004/021 ,  H01M2004/028

Abstract: A positive electrode plate includes a current collector and an electrode membrane formed on at least one surface of the current collector. The electrode membrane includes a first positive electrode active substance layer and a second positive electrode active substance layer, and the first positive electrode active substance layer is located between the current collector and the second positive electrode active substance layer. A first positive electrode active substance material in the first positive electrode active substance layer contains hollow particles, and a second positive electrode active substance material in the second positive electrode active substance layer contains solid particles.