公开(公告)号：US20240014531A1

公开(公告)日：2024-01-11

申请号：US18348869

申请日：2023-07-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shaohua AI ,  Chengdong SUN ,  Yi ZHENG

IPC: H01M50/586 ,  H01M4/62 ,  H01M4/13 ,  H01M10/42 ,  H01M50/59 ,  C09D133/10 ,  C09D115/00 ,  C09D133/20 ,  C09D133/26 ,  C09D7/20 ,  C09D7/61

CPC classification number: H01M50/586 ,  H01M4/62 ,  H01M4/13 ,  H01M10/4235 ,  H01M50/59 ,  C09D133/10 ,  C09D115/005 ,  C09D133/20 ,  C09D133/26 ,  C09D7/20 ,  C09D7/61 ,  H01M2004/028

Abstract: A fluorine-free insulating slurry includes a first resin selected from resins with a glass transition temperature of above 80° C. and a liquid absorbency in a standard electrolyte solution below 15%, a second resin selected from resins with a glass transition temperature below −5° C., an inorganic filler, and an organic solvent.

公开(公告)号：US20240128432A1

公开(公告)日：2024-04-18

申请号：US18532918

申请日：2023-12-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuxi ZHANG ,  Shaohua AI ,  Xin ZHOU ,  Yu CHEN ,  Qi ZENG

IPC: H01M4/04 ,  C23C14/16 ,  C23C14/24 ,  C23C14/58 ,  H01M4/1395 ,  H01M4/66 ,  H01M10/0525

CPC classification number: H01M4/0423 ,  C23C14/16 ,  C23C14/24 ,  C23C14/5806 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/1395 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/028

Abstract: The present application provides a method for preparing a prelithiated positive electrode current collector, the method comprising the following steps: gasifying a lithium source in an evaporation chamber filled with a protective gas; enabling an aluminum foil layer to pass through the evaporation chamber and depositing the metal lithium on a surface of the aluminum foil layer by means of vapor deposition; and transferring the aluminum foil layer deposited with the metal lithium to an annealing chamber filled with a protective gas and performing high-temperature annealing to form a lithium-aluminum alloy layer on the surface of the aluminum foil layer.

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：US20230207815A1

公开(公告)日：2023-06-29

申请号：US18109277

申请日：2023-02-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shaohua AI ,  Yi ZHENG ,  Chengdong SUN

IPC: H01M4/62 ,  H01M10/058 ,  H01M4/04

CPC classification number: H01M4/622 ,  H01M10/058 ,  H01M4/0404 ,  H01M2004/028

Abstract: This application provides an insulating slurry and a preparation method thereof, a positive electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus. The insulating slurry may include a resin, an inorganic filler, and an organic solvent, where the resin is selected from polyfluorinated olefin resins prepared in a suspension polymerization method, and the inorganic filler is a two-dimensional inorganic material. In this application, both a coating velocity of the insulating slurry and safety performance of the secondary battery can be improved.

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.