公开(公告)号：US20230335776A1

公开(公告)日：2023-10-19

申请号：US18333327

申请日：2023-06-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhifeng WU ,  Chao GUO ,  Shaojun QIU

IPC: H01M10/04

CPC classification number: H01M10/0404 ,  H01M4/0419

Abstract: A strip defect repair device configured to repair a coating defect of a strip and includes a detection module, a transfer module, and a repair module. The detection module is configured to detect the coating defect of the strip and feed back a position signal corresponding to the coating defect. The transfer module is configured to respond to the position signal and drive the repair module to move to a position corresponding to the coating defect, and the repair module is configured to add a supplementary material to the coating defect so as to repair the coating defect.

公开(公告)号：US20230036043A1

公开(公告)日：2023-02-02

申请号：US17964949

申请日：2022-10-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Siying HUANG ,  Yaohui WANG ,  Yinxiang LIN ,  Chao GUO ,  Peng JIN ,  Jinlong LIU

IPC: B05C9/06 ,  B05C11/02 ,  B05C11/10 ,  B05C21/00

Abstract: This application provides a coating system, and relates to the technical field of coating. The coating system may include a coating head, a feeding apparatus, and a valve. The coating head may be equipped with at least two dispensing cavities independent of each other. Each dispensing cavity may include a coating opening. The feeding apparatus may be connected to the dispensing cavity, and the feeding apparatus may be configured to feed a slurry to the dispensing cavity. The valve may be disposed between at least one dispensing cavity and the feeding apparatus, and configured to implement communication or disconnection between a corresponding dispensing cavity and the feeding apparatus.

公开(公告)号：US20230311155A1

公开(公告)日：2023-10-05

申请号：US18328603

申请日：2023-06-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yinxiang LIN ,  Peng JIN ,  Chao GUO ,  Nengwu LIAO ,  Xuefeng KANG ,  Lijun LI ,  Wengang CHEN

IPC: B05C9/14 ,  B05D3/04 ,  B05D3/00

CPC classification number: B05C9/14 ,  B05D3/0413 ,  B05D3/007

Abstract: A coating device includes a first coating mechanism configured to coat a first surface of a substrate, a first oven drying mechanism arranged downstream of the first coating mechanism and configured to oven dry a coating on the first surface, a second coating mechanism arranged downstream of the first oven drying mechanism and configured to coat a second surface of the substrate opposite to the first surface, a second oven drying mechanism arranged downstream of the second coating mechanism and configured to oven dry a coating on the second surface, and a third oven drying mechanism arranged downstream of the second oven drying mechanism and configured to oven dry the coating on the second surface.

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：US20230296315A1

公开(公告)日：2023-09-21

申请号：US18201647

申请日：2023-05-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yinxiang LIN ,  Peng JIN ,  Chao GUO ,  Nengwu LIAO ,  LIjun LI ,  Xuefeng KANG

IPC: F26B3/04 ,  F26B25/06

CPC classification number: F26B3/04 ,  F26B25/06 ,  H01M4/0471

Abstract: The present application provides an oven drying apparatus and a coating device. The oven drying apparatus comprises an oven drying chamber and a heating assembly. The oven drying chamber is equipped with a first oven drying side having a plurality of first air inlet portions for fluid medium to enter the oven drying chamber. The heating assembly is disposed on the first oven drying side. The first oven drying side is further provided with at least one air return portion provided between two adjacent first air inlet portions, and the air return portion being configured for fluid medium in the oven drying chamber to be discharged from the oven drying chamber. The arrangement of an air return portion between two first air inlet portions can discharge fluid medium between the two first air inlet portions and take away the heat, thus avoiding accumulation of heat between the two first air inlet portions.

公开(公告)号：US20230223506A1

公开(公告)日：2023-07-13

申请号：US18184010

申请日：2023-03-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shaojun QIU ,  Nengwu LIAO ,  Chao GUO ,  Tiefeng WU

IPC: H01M4/04 ,  H01M50/533 ,  B08B5/04 ,  B23K26/16 ,  B23K26/38

CPC classification number: H01M4/04 ,  H01M50/533 ,  B08B5/04 ,  B23K26/16 ,  B23K26/38

Abstract: Disclosed is method and device for forming an electrode plate. The method includes: performing tab cutting on a substrate so that the substrate forms a body portion, an edge portion connecting to the body portion, and a plurality of tabs that connect to the body portion but are separated from the edge portion; and performing edge portion cutting on the substrate to separate the edge portion from the body portion. The electrode plate is formed in two steps. First, the tab and the edge portion are separated, so that in the process of cutting, impact of vibration of the edge portion on the tab is small, greatly reducing the risk of deformation of the tab caused by vibration of the edge portion and damage to the tab caused by being pulled by the edge portion. Second, edge portion cutting separates the edge portion from the body portion.

公开(公告)号：US20210119197A1

公开(公告)日：2021-04-22

申请号：US17137047

申请日：2020-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M4/04

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：US20180069220A1

公开(公告)日：2018-03-08

申请号：US15809224

申请日：2017-11-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chenglong YUAN ,  Ning PENG ,  Chao GUO ,  Shengwu ZHANG

IPC: H01M2/16 ,  H01M10/0525

CPC classification number: H01M2/1686 ,  H01M2/14 ,  H01M2/16 ,  H01M2/1633 ,  H01M2/1653 ,  H01M2/1666 ,  H01M10/0525

Abstract: There is provided a composite separator for a lithium-ion battery, including a polyolefin substrate and a coating layer containing a binder and inorganic particles formed on a surface of the polyolefin substrate, a hydrogen bond being formed between the binder and the inorganic particles. Also provided are a method for preparing the composite separator for a lithium-ion battery and a lithium-ion battery using the composite separator. The composite separator of the present application increases adhesion force between the substrate and the inorganic particles, thereby reducing detachment of the inorganic particles. By using the composite separator, the product quality of the battery is improved, and the risk of influencing the safety performance of the battery caused by the detachment of the inorganic particles in a production process is reduced.

公开(公告)号：US20240157707A1

公开(公告)日：2024-05-16

申请号：US18220781

申请日：2023-07-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chao GUO ,  Yinyong QIAO

IPC: H01M4/04 ,  B41J2/435 ,  B65H20/02

CPC classification number: H01M4/04 ,  B41J2/435 ,  B65H20/02 ,  B65H2404/143 ,  B65H2404/19 ,  H01M10/0404

Abstract: This application discloses processing equipment, electrode plate processing equipment, battery processing equipment, and a sheet processing method. The processing equipment includes a rotation roller and a laser assembly. The rotation roller is rotatable around a first axis. An outer peripheral surface of the rotation roller around the first axis is configured to allow winding of a sheet. The outer peripheral surface of the rotation roller is able to move synchronously with the sheet around the first axis. The laser assembly is disposed on the rotation roller and able to rotate with the rotation roller. The laser assembly is configured to drive a laser beam to be emitted toward the sheet, and further configured to drive the laser beam to move linearly and/or oscillate around a second axis that intersects the first axis.

公开(公告)号：US20200161640A1

公开(公告)日：2020-05-21

申请号：US16422872

申请日：2019-05-24

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Wei LI ,  Haihao SHI ,  Huihui LIU ,  Chao JIN ,  Tianyi GAO ,  Jianbao XU ,  Shisong LI ,  Chao GUO

IPC: H01M4/36 ,  H01M4/62

Abstract: The present invention relates to a battery, comprising a positive electrode plate, a separator and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active materials on at least one surface of the positive electrode current collector in which the underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material, and a first conductive material and in which the upper positive active material layer comprises a second positive active material, a second polymer material, and a second conductive material and the first polymer material comprises an oil-dispersible polymer material having a solubility in NMP at 130° C. for 5 minutes, which is 30% or less of the solubility of PVDF under the same conditions. The battery exhibits good safety performance and improved electrical performance.