公开(公告)号：US20230411587A1

公开(公告)日：2023-12-21

申请号：US18234386

申请日：2023-08-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiyang WU ,  Wang ZHANG ,  Shisong LI ,  Chao GUO ,  Chao YANG

IPC: H01M4/04 ,  B05C11/02

CPC classification number: H01M4/0435 ,  B05C11/025

Abstract: This application discloses an electrode plate rolling apparatus and an electrode plate rolling method that are configured to roll an electrode plate. The electrode plate includes a coated region and an uncoated region. The electrode plate rolling apparatus includes a roller group, a heating part, and a cooling part. The heating part is configured to heat the electrode plate, and the cooling part is configured to cool the electrode plate. The heating part further includes an extension assembly, and the extension assembly can extend the uncoated region when the heating part heats the electrode plate. The electrode plate passes through the cooling part after passing through the heating part. The heating part and the cooling part are configured to reduce a difference between an extensibility parameter of the uncoated region and an extensibility parameter of the coated region.

公开(公告)号：US20240356044A1

公开(公告)日：2024-10-24

申请号：US18534760

申请日：2023-12-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiyang WU ,  Mingjian LIU ,  Keqiang LI ,  Bin XIE

IPC: H01M4/66 ,  H01M4/80 ,  H01M10/04

CPC classification number: H01M4/667 ,  H01M4/661 ,  H01M4/80 ,  H01M10/0431

Abstract: The present application provides a composite current collector, including: an organic support layer having an air permeability greater than or equal to 50 s/100 mL; and an electrically conductive layer arranged on one surface of the organic support layer. In this way, the organic support layer can also be used as a separator, thereby increasing the volumetric energy density of a secondary battery using the composite current collector.

公开(公告)号：US20240266580A1

公开(公告)日：2024-08-08

申请号：US18618881

申请日：2024-03-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiyang WU ,  Chao XIE ,  Yiruo WANG ,  Gang LIN

IPC: H01M10/04 ,  B32B37/20 ,  B32B38/00 ,  B32B38/18 ,  H01M10/0587 ,  H01M50/46

CPC classification number: H01M10/0404 ,  B32B37/20 ,  B32B38/0004 ,  B32B38/1833 ,  B32B38/1875 ,  H01M10/0587 ,  H01M50/46 ,  B32B2309/72 ,  B32B2457/10

Abstract: A manufacturing device for an electrode assembly comprises a first electrode plate feeding mechanism for conveying a first electrode plate, a first separator feeding mechanism for conveying a first separator, a second separator feeding mechanism for conveying a second separator, and a compounding mechanism provided downstream the first electrode plate feeding mechanism, the first separator feeding mechanism, and the second separator feeding mechanism. The compounding mechanism is used for sequentially laminating and compounding the first separator, the first electrode plate, and the second separator into a first electrode plate complex. The manufacturing device further comprises a second electrode plate feeding mechanism for conveying a second electrode plate having opposite polarity than the first electrode plate, and a winding mechanism provided downstream the compounding mechanism and the second electrode plate feeding mechanism and used for winding the first electrode plate complex and the second electrode plate to form an electrode assembly.

公开(公告)号：US20230335778A1

公开(公告)日：2023-10-19

申请号：US18213277

申请日：2023-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiyang WU ,  Yiruo WANG ,  Gang LIN ,  Guohang LIAO

IPC: H01M10/0587 ,  H01M10/04

CPC classification number: H01M10/0409 ,  H01M10/0431 ,  H01M10/0587

Abstract: A winding method may comprise clamping heads of an anode plate, a cathode plate and a separator between a first half winding needle and a second half winding needle of a winding needle assembly at a winding station; and rotating the winding needle assembly at the winding station to wind the anode plate, the cathode plate and the separator to form an electrode assembly.

公开(公告)号：US20230327175A1

公开(公告)日：2023-10-12

申请号：US18331598

申请日：2023-06-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaowei ZHANG ,  Wei ZHANG ,  Yuqian WEN ,  Minghao TANG ,  Zhiyang WU ,  Qinglin BAI

IPC: H01M10/04 ,  B65H18/04

CPC classification number: H01M10/0409 ,  B65H18/04 ,  B65H18/10

Abstract: The present application discloses a winding needle sleeve, a battery unit, a battery, a power-consuming device and a winding device. A wall of the winding needle sleeve is provided with a through slot extending through the wall. The through slot extends from one end to the other end of the winding needle sleeve, so as to allow expansion or contraction of the winding needle sleeve in a radial direction. The technical solution provided by the present application can solve the problem in the prior art that an electrode assembly collapses due to expansion and contraction thereof, resulting in wrinkling of a surface of the electrode assembly and the phenomenon of lithium deposition, thus causing potential safety hazards.

公开(公告)号：US20230327173A1

公开(公告)日：2023-10-12

申请号：US18208899

申请日：2023-06-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiyang WU ,  Yunzhi LI ,  Zhihui WANG ,  Dajun NI ,  Jiayi ZHAO ,  Zhihua WEN

IPC: H01M10/04 ,  B65H23/02 ,  H01M50/403

CPC classification number: H01M10/0404 ,  B65H23/0216 ,  H01M50/403 ,  B65H2553/42 ,  B65H2301/5143

Abstract: The present application relates to a heating device, and a battery manufacturing apparatus and method, and relates to the technical field of battery manufacturing. The heating device is configured to heat a material strip upstream of a first station, and may include: a support; a first heater movably mounted to the support; and a first driver mounted to the support and configured to drive the first heater to move in a feeding direction of the material strip, such that the first heater is movable between a first position close to the first station and a second position away from the first station.

公开(公告)号：US20230307718A1

公开(公告)日：2023-09-28

申请号：US18326350

申请日：2023-05-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yiruo WANG ,  Zhiyang WU ,  Gang LIN ,  Chao XIE ,  Guoda HUANG ,  Yongli ZHANG ,  Mingjian LIU

IPC: H01M10/0587

CPC classification number: H01M10/0587

Abstract: An electrode assembly manufacturing device includes a winding mechanism, a heating mechanism, a conveyor belt arranged between the heating mechanism and the winding mechanism, and a forming mechanism. The winding mechanism is configured to wind a positive electrode sheet, a separator, and a negative electrode sheet into an electrode assembly. The conveyor belt is configured to transfer the electrode assembly from the winding mechanism to the heating mechanism. The heating mechanism is configured to heat the electrode assembly. The forming mechanism is configured to press and form the electrode assembly.