公开(公告)号：US20210242535A1

公开(公告)日：2021-08-05

申请号：US16967617

申请日：2020-03-27

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Yibo ZHANG ,  Xiang LI ,  Bin WANG ,  Ying SHAO

IPC: H01M50/44 ,  H01M50/431 ,  H01M50/449 ,  H01M50/46 ,  H01M50/414 ,  H01M10/0525

Abstract: The present application relates to an electrochemical device. The electrochemical device includes: at least one electrode, the at least one electrode having a first surface; and a fiber coating layer, the fiber coating layer including a fiber and being disposed on the first surface. The electrochemical device has the advantages of high energy density, strong liquid retention ability, good drop resistance, good chemical stability and the like since its fiber coating layer has small thickness, high porosity and stronger interfacial adhesion to the electrode.

公开(公告)号：US20210234231A1

公开(公告)日：2021-07-29

申请号：US16965786

申请日：2020-03-27

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Yibo ZHANG ,  Bin WANG ,  Xiang LI ,  Ying SHAO

IPC: H01M50/44 ,  H01M50/449 ,  H01M10/0525 ,  H01M50/414 ,  H01M50/446 ,  D01F8/04 ,  D01F8/18

Abstract: An electrochemical device including a coaxial fiber. The coaxial fiber includes a first fiber as a shell and a second fiber as a core, wherein the first fiber includes a polymer, and the second fiber includes a foamed material. The electrochemical device including the coaxial fiber has good overcharge resistance and abuse resistance.

公开(公告)号：US20230024456A1

公开(公告)日：2023-01-26

申请号：US17953656

申请日：2022-09-27

Applicant: Ningde Amperex Technology Limited

Inventor： Ying SHAO ,  Yibo ZHANG

IPC: H01M50/474 ,  H01M50/486 ,  H01M50/483 ,  H01M50/491 ,  H01M50/536

Abstract: An electrode assembly includes an electrode plate and an embedded tab provided on the electrode plate. A spinning layer is provided on a surface of the electrode plate, the spinning layer covers the surface of the electrode plate and is in contact with the surface of the electrode plate, and the surface of the electrode plate includes a surface of the tab. The spinning layer replaces a conventional separator, and the spinning layer and the electrode plate are integrated as a whole. Especially in a battery structure with the embedded tabs, because the spinning layer is able to isolate metal burrs. The spinning layer replaces the green glue originally affixed on the tab region, thereby eliminating the glue affixed on the tab region.