公开(公告)号：US20240234789A1

公开(公告)日：2024-07-11

申请号：US18612823

申请日：2024-03-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yujie CHEN ,  Feng LIU ,  Xiaoming GE

IPC: H01M10/04 ,  H01M4/04 ,  H01M4/70 ,  H01M50/103 ,  H01M50/15 ,  H01M50/209

CPC classification number: H01M10/0431 ,  H01M4/0435 ,  H01M4/70 ,  H01M50/103 ,  H01M50/15 ,  H01M50/209

Abstract: An electrode assembly includes a positive electrode layer, a negative electrode layer, and an separator. The positive electrode layer, negative electrode layer, and separator are wound to form the electrode assembly. The separator wraps on both sides of each positive electrode layer and each negative electrode layer. A current collector of the negative electrode layer is made of a three-dimensional porous metal material. The negative electrode layer includes a first negative electrode section and a second negative electrode section extending along a winding direction and connected to each other. A winding start end of the second negative electrode section is substantially aligned with a winding termination end of the positive electrode layer. A thickness d2 of the second negative electrode section is less than a thickness d1 of the first negative electrode section.

公开(公告)号：US20240097143A1

公开(公告)日：2024-03-21

申请号：US18511585

申请日：2023-11-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yulei FAN ,  Yiheng WANG ,  Xiaoming GE ,  Manman WANG ,  Yujie CHEN ,  Xiaoping ZHANG

IPC: H01M4/78

CPC classification number: H01M4/78

Abstract: A battery unit includes an electrode assembly and a support component. The electrode assembly includes a positive electrode plate and a negative electrode plate that have opposite polarities, and a separator separating the positive electrode plate and the negative electrode plate. The electrode assembly is wound around an outer periphery of the support component. An outer peripheral wall surface of the support component includes a first arc surface and a second arc surface. A first end of the first arc surface is connected to a first end of the second arc surface, and a second end of the first arc surface is spaced apart from a second end of the second arc surface so as to form a step region on the outer peripheral wall surface. The step region is configured to accommodate at least part of the electrode assembly.

公开(公告)号：US20240372110A1

公开(公告)日：2024-11-07

申请号：US18773630

申请日：2024-07-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yujie CHEN ,  Xiaoming GE ,  Yulei FAN

IPC: H01M4/80 ,  H01M4/02 ,  H01M4/62

Abstract: This application discloses an electrode plate, an electrode assembly, a battery cell, a battery, an electrical device, and an electrode plate manufacturing method and equipment. The electrode plate includes a foamed metal layer. A part of the foamed metal layer is a filled region. Pores of the filled region are filled with a filler. The filler extends continuously from one edge to another edge of the foamed metal layer, the two edges being arranged on two opposite sides along a first preset direction. The first preset direction is perpendicular to a thickness direction of the foamed metal layer. In the electrode plate disclosed in this application, a part of the foamed metal layer is configured as a filling region filled with a filler.

公开(公告)号：US20240222597A1

公开(公告)日：2024-07-04

申请号：US18602149

申请日：2024-03-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yujie CHEN ,  Xiaoming GE ,  Yiheng WANG

IPC: H01M4/13 ,  H01M4/02 ,  H01M10/0525

CPC classification number: H01M4/13 ,  H01M2004/021 ,  H01M2004/027 ,  H01M10/0525 ,  H01M2220/20

Abstract: The present application provides a negative electrode sheet, an electrode assembly, a battery cell, a battery, and an electrical device, belonging to the field of battery technology. The negative electrode sheet includes a porous matrix and a first insulator. The porous matrix has a first surface area in its thickness direction. A first insulator clads at least a partial metal surface of the first surface area. The negative electrode sheet with this structure makes it difficult for lithium ions to obtain electrons on the surface of the porous matrix during use, which can effectively alleviate precipitation of lithium metal and formation of dendritic crystals on the surface of the negative electrode sheet.

公开(公告)号：US20240079603A1

公开(公告)日：2024-03-07

申请号：US18388531

申请日：2023-11-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaoming GE ,  Yujie CHEN ,  Feng LIU

IPC: H01M4/80 ,  H01M4/66 ,  H01M50/213

CPC classification number: H01M4/808 ,  H01M4/661 ,  H01M50/213 ,  H01M2220/20

Abstract: The present application discloses a current collector, and manufacturing method and equipment thereof, and a current collector preform, wherein the current collector may include a porous foam metal part and solid metal part(s); the porous foam metal part may be uncompressed, and the porous foam metal part may include a first edge and a second edge oppositely distributed in a first direction, the first direction may be perpendicular to the thickness direction of the current collector; the first edge and/or the second edge may be connected with the solid metal part(s).