公开(公告)号：US20240247870A1

公开(公告)日：2024-07-25

申请号：US18626200

申请日：2024-04-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lei LU ,  Linzhen YU ,  Yalong WANG ,  Changyuan HU ,  Zheng WANG ,  Kaiming DENG ,  Shisong LI ,  Shengwu ZHANG

IPC: F26B13/14 ,  F26B13/08 ,  F26B13/10

CPC classification number: F26B13/14 ,  F26B13/08 ,  F26B13/108

Abstract: A drying apparatus for drying a material belt includes at least one material-belt turning mechanism, used for changing a travel direction of the material belt, and including a first passing roller, a turning roller, and a second passing roller sequentially arranged in the travel direction of the material belt. The turning roller is configured to move in a first direction relative to the first passing roller and the second passing roller to adjust a wrap angle of the material belt on the turning roller, the first direction perpendicular to an axial direction of the turning roller.

公开(公告)号：US20240282967A1

公开(公告)日：2024-08-22

申请号：US18651763

申请日：2024-05-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Changyuan HU ,  Lei LU ,  Yalong WANG ,  Zheng WANG ,  Kaiming DENG ,  Linzhen YU ,  Shisong LI ,  Shunhao DAI

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/58

CPC classification number: H01M4/622 ,  H01M4/0411 ,  H01M4/5825 ,  H01M2004/021 ,  H01M2004/028

Abstract: A secondary battery is disclosed. The secondary battery includes a first binder and a second binder, the first binder includes at least one of polyvinylidene fluoride, rubber, epoxy resin, polyurethane, and acrylate, and the second binder includes at least one of polytetrafluoroethylene, polyimide, polypropylene, polyethylene, ethylene vinyl acetate copolymer, and styrene-ethylene-butylene-styrene block copolymer.

公开(公告)号：US20240021827A1

公开(公告)日：2024-01-18

申请号：US18371479

申请日：2023-09-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kaiming DENG ,  Lei LU ,  Yalong WANG ,  Hai JIA ,  Shunhao DAI

IPC: H01M4/62 ,  H01M4/13 ,  H01M10/0525

CPC classification number: H01M4/622 ,  H01M4/13 ,  H01M10/0525 ,  H01M2004/027

Abstract: Embodiments of the present application provide a negative electrode plate, a secondary battery, a battery module, a battery pack and an electrical device. The negative electrode plate may comprise a negative electrode current collector; and a negative electrode active material layer, wherein the negative electrode active material layer may be disposed on at least one surface of the negative electrode current collector, and comprise, based on total weight of the negative electrode active material layer, 90.0% to 98.6% by weight of a negative electrode active material; 1.0%-5.0% by weight of a polymer binder; and 0.2%-4.0% by weight of a toughening fiber.

公开(公告)号：US20230335738A1

公开(公告)日：2023-10-19

申请号：US18338581

申请日：2023-06-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lei LU ,  Gaihong ZHU ,  Kaiming DENG ,  Shisong LI

IPC: H01M4/62 ,  H01M4/04 ,  H01M50/204 ,  H01M10/04

CPC classification number: H01M4/622 ,  H01M4/0404 ,  H01M50/204 ,  H01M10/0431 ,  H01M2004/021

Abstract: A binder includes a polymer obtained by polymerizing at least a first component, a second component, and a third component. The first component includes a flexible monomer selected from C4-18 alkene. The second component includes a rigid monomer including at least one of an alkene having a rigid group or a polymerized monomer having a strong polar group. The rigid group is selected from C5-20 aryl, C4-8 saturated or unsaturated ring group, and C5-30 heterocyclyl. The third component includes a hydrophilic monomer containing a hydrophilic group selected from carboxyl, hydroxyl, amine, aldehyde, alcohol, amino, and amido.