公开(公告)号：US12104267B2

公开(公告)日：2024-10-01

申请号：US17965158

申请日：2022-10-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yi Lu ,  Xiaosong Liu ,  Keqiang Li

IPC: C25D21/06

CPC classification number: C25D21/06

Abstract: This application relates to a filtering mechanism and a device for producing a conductive material, where the filtering mechanism includes a filtering body, a cover, and a supporting member. The filtering body includes an accommodating cavity for accommodating an electroplating material and an opening provided on the filtering body; the cover is configured to cover the opening and connect to the filtering body to enclose the electroplating material in the filtering body; and the supporting member is provided on the cover to enhance connection strength between the cover and the filtering body.

公开(公告)号：US11978910B2

公开(公告)日：2024-05-07

申请号：US18472211

申请日：2023-09-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Changsheng He ,  Mingjian Liu ,  Keqiang Li ,  Xiaosong Liu ,  Bin Xie ,  Zhiyang Wu

IPC: H01M4/66 ,  H01M4/02 ,  H01M10/04

CPC classification number: H01M4/667 ,  H01M10/0409 ,  H01M10/0431 ,  H01M2004/021 ,  H01M2220/20

Abstract: Provided are an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly includes first electrode plates and a second electrode plate that are of opposite polarities. The second electrode plate and two first electrode plates are stacked and wound to form the electrode assembly. The second electrode plate is located between the two first electrode plates. Each of the first electrode plates includes a first composite current collector and a first active material layer. The first active material layer is disposed on a surface that is of the first composite current collector and that is oriented back from the second electrode plate. The first composite current collector is configured to dielectrically isolate the first active material layer from the second electrode plate and allow passage of ions transmitted between the first active material layer and the second electrode plate.

公开(公告)号：US20240327972A1

公开(公告)日：2024-10-03

申请号：US18735190

申请日：2024-06-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Keqiang Li ,  Xiaosong Liu ,  Zhiyang Wu ,  Yi Lu

IPC: C23C14/24 ,  C23C14/04 ,  C23C14/20

CPC classification number: C23C14/24 ,  C23C14/042 ,  C23C14/20

Abstract: Provided are a coating apparatus that can form a high-accuracy pattern coating on a base film, thereby improving the performance of components including the base film (such as current collectors). The coating apparatus includes: a coating-resistance pattern unit configured to form a pattern composed of a coating-resistance substance on a partial area of the surface of a base film, where the coating-resistance substance is used to restrict metal vapor from forming a coating; and a coating unit configured to apply the metal vapor to the base film with the pattern, so as to form a metal coating on the area of the surface of the base film where the coating-resistance substance is not provided.

公开(公告)号：US20240021839A1

公开(公告)日：2024-01-18

申请号：US18472211

申请日：2023-09-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Changsheng He ,  Mingjian Liu ,  Keqiang Li ,  Xiaosong Liu ,  Bin Xie ,  Zhiyang Wu

IPC: H01M4/66 ,  H01M10/04

CPC classification number: H01M4/667 ,  H01M10/0431 ,  H01M10/0409 ,  H01M2004/021

Abstract: Provided are an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly includes first electrode plates and a second electrode plate that are of opposite polarities. The second electrode plate and two first electrode plates are stacked and wound to form the electrode assembly. The second electrode plate is located between the two first electrode plates. Each of the first electrode plates includes a first composite current collector and a first active material layer. The first active material layer is disposed on a surface that is of the first composite current collector and that is oriented back from the second electrode plate. The first composite current collector is configured to dielectrically isolate the first active material layer from the second electrode plate and allow passage of ions transmitted between the first active material layer and the second electrode plate.

公开(公告)号：US20230369634A1

公开(公告)日：2023-11-16

申请号：US18360815

申请日：2023-07-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yongli Zhang ,  Jun Hu ,  Gang Zeng ,  Keqiang Li ,  Ruhu Liao ,  Zhihua Wen

IPC: H01M10/04 ,  H01M4/04 ,  B65H23/025

CPC classification number: H01M10/0404 ,  B65H23/0253 ,  H01M4/04 ,  B65H2404/15 ,  B65H2701/19

Abstract: Provided are a roller assembly, a battery cell manufacturing device, and an adjustment method of a roller, which relates to the field of battery manufacturing technology. The roller assembly includes a holder, a roller, and a first adjusting member. The roller is rotatably mounted on the holder. The first adjusting member is rotatably mounted on the holder, and one end of the roller is rotatably connected to the first adjusting member. A rotation axis of the roller does not coincide with a rotation axis of the first adjusting member. One end of the roller is rotatably mounted on the holder through the first adjusting member. The rotation axis of the first adjusting member does not coincide with the rotation axis of the roller, and therefore, rotation of the first adjusting member is capable of driving a corresponding end of the roller to rotate, thereby adjusting an extension direction of the roller.

公开(公告)号：US10954589B2

公开(公告)日：2021-03-23

申请号：US16249983

申请日：2019-01-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zuyu Wu ,  Zhen Liu ,  Keqiang Li ,  Long Zhou ,  Guodong Li ,  Taosheng Zhu

IPC: C23C8/12 ,  H01M4/66 ,  H01M10/0525

Abstract: The present disclosure relates to a current collector production apparatus for producing a current collector. The current collector includes a current collector substrate, a conductive layer disposed on at least one surface of the current collector substrate. The current collector production apparatus includes an oven having a space where the current collector is to be heated, and a passivation ozone knife having a current collector injection port. The current collector injection port is configured to release ozone in such a manner that the ozone reacts with a surface material of the conductive layer, so as to form a passivation layer. The passivation ozone knife is disposed inside the oven. The current collector produced in the present disclosure can prevent HF in electrolyte from reacting with Al, so as to solve a problem of detachment of active material from the current collector and maintain the performance of lithium-ion battery.

公开(公告)号：US11813764B2

公开(公告)日：2023-11-14

申请号：US17968728

申请日：2022-10-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yitai Guo ,  Zhihua Wen ,  Keqiang Li ,  Cong Zhang ,  Yunru Shi ,  Jun Hu

IPC: B26D5/00 ,  B26D7/26 ,  H01M4/04

CPC classification number: B26D5/00 ,  B26D7/2628 ,  B26D2007/2607 ,  H01M4/04

Abstract: This application relates to a fixed blade monitoring structure and a cutting device used for lithium battery manufacturing. The fixed blade monitoring structure includes: an anvil, fixed blade die set, and a fixed blade monitoring assembly. A sliding sleeve is disposed on the anvil. The fixed blade die set includes a fixed blade holder and a fixed blade mounted on the fixed blade holder. An end of the fixed blade holder is slidably mounted in the sliding sleeve. The fixed blade monitoring assembly is mounted in the sliding sleeve and connected to the fixed blade holder, and configured to render status of the fixed blade by monitoring a relative force received by the fixed blade holder. Through the above structure, manpower and time consumption in the tuning process is reduced. The status monitoring of a first cutter and a second cutter can be implemented during the cutting.

公开(公告)号：US10826072B2

公开(公告)日：2020-11-03

申请号：US16370974

申请日：2019-03-30

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jinwei Lin ,  Zuyu Wu ,  Keqiang Li ,  Congmiao Wu ,  Taosheng Zhu

IPC: H01M4/66 ,  H01M10/0525

Abstract: The present application discloses a current collector, an electrode plate, and an electrochemical device. The current collector comprises: a support layer comprising opposite two surfaces along the thickness direction thereof; a conductive layer disposed on at least one of the two surfaces of the support layer; wherein the support layer comprises a support material selected from one or more of a polymer material and a polymer matrix composite material, and wherein the light transmittance T of the support layer is 0≤T≤98%. The current collector, electrode plate and electrochemical device provided by the present application have good processability.

公开(公告)号：US10403878B2

公开(公告)日：2019-09-03

申请号：US15255772

申请日：2016-09-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Keqiang Li ,  Zuyu Wu ,  Wutang Zhang

IPC: H01M4/04 ,  H01M4/134 ,  H01M4/38 ,  H01M4/1395 ,  H01M10/0525

Abstract: The present invention provides a method and a system for supplying lithium to an electrode plate. The method includes: compositing a first substrate and a first lithium strip to form a first composite lithium strip, and forming an obstruction using a second substrate between the first lithium strip and a compositing device, compositing the first composite lithium strip and an electrode plate to be supplied with lithium to form a lithium supplied composite electrode plate, during the compositing process, the first substrate in the first composite lithium strip is located at a side away from the electrode plate to be supplied with lithium, peeling and reeling the first substrate from the lithium supplied composite electrode plate, to form a lithium supplied electrode plate.

公开(公告)号：US20240309515A1

公开(公告)日：2024-09-19

申请号：US18676513

申请日：2024-05-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Keqiang Li ,  Xiaosong Liu ,  Zhiyang Wu ,  Yi Lu

IPC: C23F1/08 ,  C23F1/02

CPC classification number: C23F1/08 ,  C23F1/02

Abstract: Provided an etching device that is capable of effectively realizing an opening structure with low cost and simplified process. The etching device includes: a porous roller, the porous roller being a hollow structure with openings at both ends, an etching liquid being accommodated in the hollow structure, and the porous roller being provided with a plurality of openings; a pressing roller, attached to the porous roller and arranged above the liquid level of the etching liquid, for pressing and attaching a metal layer to be etched onto the surface of the porous roller; wherein during rotation of the porous roller, the etching liquid passes through at least part of the openings of the plurality of openings and continuously soaks the metal layer in contact with the at least part of the openings, so as to continuously etch the metal layer in contact with the at least part of the openings.