公开(公告)号：US20240243245A1

公开(公告)日：2024-07-18

申请号：US18435895

申请日：2024-02-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shitong CHEN ,  Bin XIE ,  Yi LU ,  Xinlu FEI ,  Keqiang LI ,  Fenggang ZHAO

IPC: H01M4/04

CPC classification number: H01M4/0435

Abstract: An electrode plate forming apparatus includes an unwinding device, a lithium replenishment device, a plurality of winding devices and a protection device. The lithium replenishment device is configured to clad a lithium strip to a surface of a master electrode plate body and form a master electrode plate. A slitting device is configured to slit the master electrode plate into a plurality of electrode plates. The winding devices are configured to pull the electrode plates to travel, each of the winding devices winding one corresponding electrode plate. The slitting device is disposed in an accommodating cavity of the protection device. The protection device is configured to at least partially separate particles from an external environment in a case that the slitting device slits the master electrode plate and generates the particles.

公开(公告)号：US20230411670A1

公开(公告)日：2023-12-21

申请号：US18239127

申请日：2023-08-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Bin XIE ,  Shitong CHEN ,  Yi LU ,  Yuanyuan SHEN ,  Keqiang LI ,  Fenggang ZHAO

IPC: H01M10/04

CPC classification number: H01M10/0409

Abstract: The present application provides a pole piece forming apparatus, which may include an incoming structure, a slitter, a plurality of winders and a wrinkle remover. The incoming structure may provide a master pole piece. The slitter may slit the master pole piece into a plurality of pole pieces. The winders may pull the transport of the pole pieces, respective winding devices may wind one corresponding pole piece, and the slitter may be disposed between the incoming structure and the winders. The wrinkle remover may be arranged between the slitter and the winders. The wrinkle remover may include a first roller and a second roller that may be provided opposite to each other, the first roller may include a first rolling part, and the first rolling part and the second roller may be used for rolling an edge of a slitting edge of the pole piece.

公开(公告)号：US20230352648A1

公开(公告)日：2023-11-02

申请号：US18220301

申请日：2023-07-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xinlu FEI ,  Bin XIE ,  Fenggang ZHAO ,  Shitong CHEN ,  Yongqiang XU ,  Tao FENG ,  Keqiang LI

IPC: H01M4/38 ,  H01M4/04

CPC classification number: H01M4/0435 ,  H01M4/382

Abstract: A prelithiation device may comprise: a bonding structure comprising a first roller, a second roller and a third roller, which may be sequentially disposed adjacent to each other, the first roller and the second roller being used to roll the lithium ribbon, the rolled lithium ribbon adhering to the second roller, and the second roller and the third roller being used to bond the lithium ribbon adhering to the second roller to the substrate, the lithium ribbon comprising two first surfaces opposite each other in a width direction of the lithium ribbon and a second surface facing the second roller; and a coater disposed upstream of the bonding structure in a running direction of the lithium ribbon and configured to simultaneously coat the second surface and at least one of the first surfaces with a release agent.

公开(公告)号：US20230241794A1

公开(公告)日：2023-08-03

申请号：US17940238

申请日：2022-09-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yitai GUO ,  Zhihua WEN ,  Keqiang LI ,  Yunru SHI ,  Cong ZHANG ,  Jianlei WANG

IPC: B26D1/60 ,  B26D7/08

CPC classification number: B26D1/60 ,  B26D7/08 ,  B26D2007/0012

Abstract: A blade driving apparatus configured to drive a blade of a cutting device to cut a web and includes an anvil and a slide assembly. The slide assembly includes a slide rail and a slide block that are slidably connected to each other. The slide block is connected to the anvil, and the slide block and the anvil move back and forth relative to the slide rail along a travel direction of the web. At least one of the slide rail or the slide block is made of a non-metallic material.

公开(公告)号：US20170200937A1

公开(公告)日：2017-07-13

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 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/134

CPC classification number: H01M4/0435 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/382 ,  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 composting 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：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：US20230241795A1

公开(公告)日：2023-08-03

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

CPC classification number: B26D5/00 ,  B26D7/2628 ,  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：US20230044748A1

公开(公告)日：2023-02-09

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

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：US20200091520A1

公开(公告)日：2020-03-19

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：US20190218654A1

公开(公告)日：2019-07-18

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

CPC classification number: C23C8/12 ,  H01M4/661 ,  H01M4/664 ,  H01M4/667 ,  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.