公开(公告)号：US20240222791A1

公开(公告)日：2024-07-04

申请号：US18437255

申请日：2024-02-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lei LI ,  Haiyi HONG ,  Xiaonan CHENG ,  Jianrui YANG ,  Haiyang KANG ,  Yi ZHENG ,  Chengdong SUN

IPC: H01M50/449 ,  H01M50/42 ,  H01M50/426 ,  H01M50/489

CPC classification number: H01M50/449 ,  H01M50/42 ,  H01M50/426 ,  H01M50/489

Abstract: This application relates to the field of battery technologies, and in particular, to a binder and a preparation method thereof, and a separator, electrode assembly, battery cell, battery, and electric apparatus containing such binder. The binder includes a core layer structure and a shell layer structure provided on a surface of the core layer structure, where the core layer structure includes a polyacrylate polymer, and the shell layer structure includes a polyvinylidene fluoride polymer.

公开(公告)号：US20240218169A1

公开(公告)日：2024-07-04

申请号：US18610259

申请日：2024-03-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lei LI ,  Haiyi HONG ,  Xiaonan CHENG ,  Jianrui YANG ,  Peng WANG ,  Yi ZHENG ,  Chengdong SUN

IPC: C08L33/12 ,  H01M50/426

CPC classification number: C08L33/12 ,  H01M50/426 ,  C08L2207/53

Abstract: A binder includes a core layer structure and a shell layer structure provided on a surface of the core layer structure and fully enveloping the core layer structure. The core layer structure includes a polyacrylate polymer, and the shell layer structure includes a polyvinylidene fluoride polymer.

公开(公告)号：US20240250315A1

公开(公告)日：2024-07-25

申请号：US18626973

申请日：2024-04-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaonan CHENG ,  Haiyi HONG ,  Lei LI ,  Jianrui YANG ,  Haiyang KANG ,  Yi ZHENG ,  Chengdong SUN

IPC: H01M10/42 ,  C08F220/14 ,  H01M4/62 ,  H01M50/42

CPC classification number: H01M10/4235 ,  C08F220/14 ,  H01M4/622 ,  H01M50/42

Abstract: A binder includes a polyacrylate copolymer and a lithium-containing compound. A preparation method of a binder includes adding monomers of a polyacrylate copolymer to a first emulsifier solution to obtain a pre-emulsion, adding an initiator to the pre-emulsion for reaction to obtain a reaction solution, and adding a lithium-containing substance to the reaction solution to adjust pH value to 7 to 8 and performing filtering to obtain the binder.

公开(公告)号：US20240120615A1

公开(公告)日：2024-04-11

申请号：US18502978

申请日：2023-11-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haiyang KANG ,  Lei LI ,  Yi ZHENG ,  Chengdong SUN ,  Shaohua AI

IPC: H01M50/446 ,  C08F220/14 ,  C08F220/18 ,  C08F220/28 ,  C08K9/06 ,  H01M50/42 ,  H01M50/423 ,  H01M50/434 ,  H01M50/443 ,  H01M50/451

CPC classification number: H01M50/446 ,  C08F220/14 ,  C08F220/1802 ,  C08F220/1804 ,  C08F220/1806 ,  C08F220/1811 ,  C08F220/281 ,  C08K9/06 ,  H01M50/42 ,  H01M50/423 ,  H01M50/434 ,  H01M50/443 ,  H01M50/451 ,  C08F2800/10

Abstract: A binder includes a polymer and ceramic particles modified with silane coupling agent. The polymer contains structural units derived from a first-type monomer, a second-type monomer, and a third-type monomer, and a molar ratio of the first-type monomer, the second-type monomer, and the third-type monomer is (50 to 58):(40 to 44):(2 to 6). The first-type monomer is selected from one or more compounds of formula I, the second-type monomer is selected from one or more compounds of formula II, and the third-type monomer is selected from one or more compounds of formula III.

公开(公告)号：US20240097276A1

公开(公告)日：2024-03-21

申请号：US18498850

申请日：2023-10-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lei LI ,  Haiyang KANG ,  Yi ZHENG ,  Chengdong SUN ,  Shaohua AI

IPC: H01M50/446 ,  H01M10/0525 ,  H01M50/434 ,  H01M50/443

CPC classification number: H01M50/446 ,  H01M10/0525 ,  H01M50/434 ,  H01M50/443 ,  H01M2220/20

Abstract: This application relates to the field of lithium battery technologies, and in particular, to a binder, a separator, and a lithium-ion battery using such separator, where the binder includes a terpolymer formed by copolymerization of a first monomer unit, a second monomer unit, and a third monomer unit that are specified.