公开(公告)号：US20240304964A1

公开(公告)日：2024-09-12

申请号：US18666815

申请日：2024-05-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongfeng Wang ,  Caixia Huang ,  Zhiming Wang ,  Siyu Miao ,  Guanzhou Li ,  Minghao Tang ,  Shengwu Zhang

IPC: H01M50/609

CPC classification number: H01M50/609

Abstract: Some embodiments of this application provide an injection nozzle and an injection apparatus containing same. The injection nozzle includes a body, an injection pipe, and a baffle. The body contains a channel arranged along a height direction of the injection nozzle. A first outlet is disposed at a lower part of the channel. The injection pipe is threaded through the channel in a manner of reciprocating movement along the height direction. The baffle is connected to the body and configured to cover the first outlet when a lower end portion of the injection pipe is higher than the first outlet, and be propped open by the injection pipe when the lower end portion of the injection pipe is lower than the first outlet.

公开(公告)号：US11996508B2

公开(公告)日：2024-05-28

申请号：US18326322

申请日：2023-05-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaowei Zhang ,  Jun Ni ,  Zhiwen Wang ,  Yuqian Wen ,  Minghao Tang ,  Chao Xie

IPC: H01M10/04

CPC classification number: H01M10/0409

Abstract: A winding shaft structure includes a winding shaft holder rotatable around an axial direction of the winding shaft structure, a first shaft group connected to one side of the winding shaft holder in the axial direction and configured to rotate together with the winding shaft holder, a second shaft group disposed on a side of the first shaft group in a radial direction of the winding shaft structure, a connecting member connected between the first shaft group and the second shaft group such that the second shaft group is movable with respect to the first shaft group in the radial direction via the connecting member, and a piezoelectric adjustment member disposed between the first shaft group and the second shaft group and deformable in the radial direction to adjust a distance between the first shaft group and the second shaft group.

公开(公告)号：US20240079729A1

公开(公告)日：2024-03-07

申请号：US18505140

申请日：2023-11-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jun Ni ,  Fenggang Zhao ,  Shengwu Zhang ,  Minghao Tang ,  Wenfa Lin ,  Jie Ye

IPC: H01M50/46 ,  B65H18/08 ,  H01M10/04 ,  H01M50/403 ,  H01M50/463 ,  H05B1/02

CPC classification number: H01M50/46 ,  B65H18/08 ,  H01M10/0409 ,  H01M10/0431 ,  H01M50/403 ,  H01M50/463 ,  H05B1/023 ,  B65H2511/212 ,  B65H2513/11 ,  H01M2220/20

Abstract: The present application provides an electrode assembly and a processing method and apparatus therefor, a battery cell, a battery, and a power consuming device. The electrode assembly includes: a cathode plate, an anode plate, and a separator, where the separator is configured to separate the cathode plate from the anode plate, a closed-pore portion is provided in part of the region of the separator, and the closed-pore portion is configured to block at least some ions de-intercalated from the cathode plate located on one side of the closed-pore portion from being intercalated into the anode plate located on the other side of the closed-pore portion. Heating the separator to form the closed-pore portion can reduce the occurrence of lithium precipitation.

公开(公告)号：US20250136400A1

公开(公告)日：2025-05-01

申请号：US19008656

申请日：2025-01-03

Applicant: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED ,  CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaowei Zhang ,  Hui Wei ,  Xiang Wu ,  Guoda Huang ,  Yuqian Wen ,  Minghao Tang ,  Shengwu Zhang

IPC: B65H23/00 ,  B65H23/195

Abstract: The present application discloses a winding method and a winding system, and relates to the technical field of battery fabrication. The winding method includes: obtaining a first parameter and a second parameter of each electrode assembly on a winding needle in real time, the first parameter being any one of a number of winding layers, a sheet length and a winding roll diameter, and the second parameter being one or both of the remaining two of the number of winding layers, the sheet length and the winding roll diameter; comparing the second parameters respectively with corresponding preset parameter ranges, the preset parameter ranges being the ranges of the second parameters corresponding to the first parameters of preset standard models corresponding to the electrode assemblies; and adjusting, in response to the second parameter exceeding the corresponding preset parameter range, sheets to be wound of the corresponding electrode assembly.

公开(公告)号：US12140413B2

公开(公告)日：2024-11-12

申请号：US18620924

申请日：2024-03-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaowei Zhang ,  Zhiwen Wang ,  Wei Zhang ,  Yuqian Wen ,  Minghao Tang ,  Shengwu Zhang

IPC: G01B11/14 ,  H01M10/04

Abstract: A cell winding calibration method includes: obtaining a first reference distance between first and second reference lines; obtaining a reference number of pixels included in the first reference distance, and determining, based on the first reference distance and the reference number of pixels included in the first reference distance, an actual distance corresponding to a single pixel; obtaining an actual number of pixels included in a distance between an edge of a winding substrate and the first or second reference line, and determining real-time position information of the edge of the winding substrate based on the actual number of pixels included in the distance between the edge of the winding substrate and the first or second reference line and the actual distance corresponding to a single pixel; and calibrating the winding substrate based on the real-time position information of the edge of the winding substrate.

公开(公告)号：US20240317528A1

公开(公告)日：2024-09-26

申请号：US18735198

申请日：2024-06-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaowei Zhang ,  Wei Zhang ,  Qinglin Bai ,  Yuqian Wen ,  Minghao Tang ,  Shengwu Zhang

IPC: B65H19/22 ,  H01M10/04

CPC classification number: B65H19/2292 ,  H01M10/0409 ,  H01M10/0431 ,  B65H2301/418526 ,  B65H2401/13 ,  B65H2401/20 ,  B65H2701/18422 ,  B65H2701/19

Abstract: Provided are a winding mandrel, a winding machine, and a battery cell winding method. The winding mandrel includes a first connecting member and a second connecting member configured to be combined with the first connecting member. The second connecting member and the first connecting member are arranged coaxially, and length of the combined first connecting member and second connecting member is greater than length of the first connecting member or the second connecting member. Changing a structure of a winding mandrel improves stiffness of the winding mandrel and improves the efficiency and quality of a winding operation.

公开(公告)号：US20230318044A1

公开(公告)日：2023-10-05

申请号：US18328777

申请日：2023-06-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jun Ni ,  Fenggang Zhao ,  Shengwu Zhang ,  Minghao Tang ,  Wenfa Lin ,  Jie Ye

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M50/46

CPC classification number: H01M10/0587 ,  H01M10/0525 ,  H01M50/461 ,  H01M2220/20

Abstract: An electrode assembly and a processing method and apparatus therefor, a battery cell, a battery, and a power consuming device are provided. The processing method includes: applying an adhesive on a preset part of a surface of a member to be coated, the adhesive forming a barrier layer, and the member to be coated including at least one of a cathode plate, a separator, and an anode plate; and winding the cathode plate, the anode plate, and the separator to form an electrode assembly. The barrier layer is located between the cathode active material layer and the anode active material layer adjacent to each other after the winding. The barrier layer blocks at least some ions de-intercalated from the cathode active material layer located on one side of the barrier layer from being intercalated into the anode active material layer located on the other side of the barrier layer.

公开(公告)号：US11476492B2

公开(公告)日：2022-10-18

申请号：US17058463

申请日：2020-06-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Yiruo Wang ,  Chao Yang ,  Minghao Tang ,  Xiao Wang ,  Jiang Lin ,  Chuangchuang Xiang

IPC: H01M10/04

Abstract: The present application relates to a device for preparing an electrode assembly and a preparation method of the electrode assembly. Wherein the device for preparing the electrode assembly includes: a winding assembly; a plurality of first electrode plate unwinding apparatuses, configured to provide a plurality of first electrode plates for the winding assembly; and at least one second electrode plate unwinding apparatus, configured to provide at least one second electrode plate for the winding assembly, wherein a polarity of the first electrode plate is opposite to a polarity of the second electrode plate; and wherein the winding assembly is configured to wind the plurality of first electrode plates and the at least one second electrode plate, to form an electrode assembly. The present application is used for improving winding efficiency of the electrode assembly.