公开(公告)号：US20240421285A1

公开(公告)日：2024-12-19

申请号：US18817518

申请日：2024-08-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Tao ZHANG ,  Jianfu HE ,  Qian LIU ,  Yonghuang YE ,  Chen CUI

IPC: H01M4/36 ,  H01M4/02 ,  H01M50/102

Abstract: The present application provides a battery cell, a battery and an electrical apparatus, which belong to the technical field of batteries. The battery cell includes a case and at least three electrode assemblies; a cavity is defined in the case, the cavity includes a first region and a second region, the first region is closer to the case than the second region, a polarization parameter of a single electrode assembly located in the first region is PA, a polarization parameter of a single electrode assembly located in the second region is PB, and PA

公开(公告)号：US20240372126A1

公开(公告)日：2024-11-07

申请号：US18776806

申请日：2024-07-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Suogang GUO ,  Guozhong YANG ,  Chenghua FU ,  Chenchen ZHANG ,  Yonghuang YE

IPC: H01M10/04 ,  H01M4/02 ,  H01M4/04 ,  H01M4/139 ,  H01M10/0525 ,  H01M10/0587

Abstract: This application relates to an electrode assembly, and a winding device and manufacturing method thereof, a battery cell, a battery, and an electric apparatus, and pertains to the field of battery manufacturing technologies. This application proposes an electrode assembly including a positive electrode plate, where a bending region is formed after the positive electrode plate is wound; and the positive electrode plate includes a positive electrode current collector and a positive electrode active substance layer disposed on a surface of the positive electrode current collector, where the positive electrode active substance layer includes an inactive region, and at least part of the inactive region is located in the bending region. This application further proposes a winding device and a manufacturing method of electrode assembly, so as to shape the electrode assembly. This application further proposes a battery cell, a battery, and an electric apparatus that include the electrode assembly.

公开(公告)号：US20240154260A1

公开(公告)日：2024-05-09

申请号：US18411765

申请日：2024-01-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yiyang WU ,  Yonghuang YE ,  Yuwen WANG

IPC: H01M50/531 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/112 ,  H01M50/148 ,  H01M50/55

CPC classification number: H01M50/531 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/112 ,  H01M50/148 ,  H01M50/55 ,  H01M2220/20

Abstract: A cell includes a housing having an opening orientated towards a first direction, an end cover assembly configured to cover the opening and including an end cover body and two kinds of electrode terminals having opposite polarities, and at least two electrode assembly groups arranged in parallel in the housing in a second direction perpendicular to the first direction. Each electrode assembly group includes at least one electrode assembly each including a main part and two kinds of battery tabs having opposite polarities and led out from the main part. Two adjacent battery tabs in every two adjacent electrode assembly groups have a same polarity and are connected in common to an electrode terminal having the same polarity. Two battery tabs away from each other in every two adjacent electrode assembly groups have a same polarity and are connected to an electrode terminal having the same polarity.

公开(公告)号：US20240145794A1

公开(公告)日：2024-05-02

申请号：US18409803

申请日：2024-01-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingbu CHEN ,  Yonghuang YE ,  Xin SUN ,  Lili WU ,  Rundie LIU ,  Xuan LI ,  Miaomiao DONG ,  Liang YUN ,  Peidong SONG

IPC: H01M10/42

CPC classification number: H01M10/4242 ,  H01M2220/20

Abstract: Lithium replenishing spaces are disposed on a current collection structure, such that the lithium replenishing spaces communicate with an active layer on one side; and the battery is replenished with lithium by using lithium replenishing agents in the lithium replenishing spaces to offset an irreversible lithium consumption in a cycle process, so as to increase the total capacity and the energy density of the battery. According to the present application, due to average weights MA of corresponding active materials in different distribution regions on the active layer, a sum V0 of internal volumes of lithium replenishing spaces corresponding to each of the distribution regions is controlled in a positively correlated manner based on a change in the average weights of the active materials in the different distribution regions.

公开(公告)号：US20240097294A1

公开(公告)日：2024-03-21

申请号：US18521127

申请日：2023-11-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wen CHANG ,  Chenghua FU ,  Yonghuang YE ,  Chenchen ZHANG ,  Chang ZHU

IPC: H01M50/586 ,  H01M4/13 ,  H01M10/0525 ,  H01M10/0583 ,  H01M10/0587 ,  H01M50/59

CPC classification number: H01M50/586 ,  H01M4/13 ,  H01M10/0525 ,  H01M10/0583 ,  H01M10/0587 ,  H01M50/59 ,  H01M2004/028

Abstract: A cathode plate and a battery are described. The cathode plate includes: a main body with a cuboid shape, which is formed by stacking a cathode active material layer and a cathode current collector in a first direction and has four side faces and two end faces facing each other in the first direction, and the four side faces being a first side face to a fourth side face; a cathode tab, formed by the cathode current collector extending from the first side face to an outside of the main body; and an insulating layer, formed on and covering 95% or more of the second side face to the fourth side face.

公开(公告)号：US20240047782A1

公开(公告)日：2024-02-08

申请号：US18486651

申请日：2023-10-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Qian LIU ,  Yonghuang YE ,  Chunpeng YU ,  Fajun HUANG

IPC: H01M10/6556 ,  H01M10/6568 ,  H01M10/613 ,  H01M50/204 ,  H01M10/625

CPC classification number: H01M10/6556 ,  H01M10/6568 ,  H01M10/613 ,  H01M50/204 ,  H01M10/625 ,  H01M2220/20

Abstract: A battery cooling device includes a shell, a cooling channel arranged inside the shell and configured to allow flowing of cooling fluids and restrict flowing directions of the cooling fluids along the cooling channels, a cooling fluid flow regulation component arranged inside the shell and configured to be deformed from a first opening degree to a second opening degree when the temperature rises where the fluid flow at the first opening degree is less than the fluid flow at the second opening degree, and a regulation component deformation restriction component arranged inside the shell and configured to be deformed from a first configuration to a second configuration when the temperature rises.

公开(公告)号：US20230402708A1

公开(公告)日：2023-12-14

申请号：US18447429

申请日：2023-08-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingyan YOU ,  Wanqiu MENG ,  Baozhen WU ,  Yiyang WU ,  Yuwen WANG ,  Chan LIAO ,  Yonghuang YE

IPC: H01M50/30 ,  H01M10/04 ,  H01M50/609

CPC classification number: H01M50/394 ,  H01M10/049 ,  H01M50/609 ,  H01M10/0404

Abstract: A battery cell, a battery, an electric apparatus, and a manufacturing method and manufacturing device of battery cell are described. The battery cell includes: an electrode assembly; a casing having an accommodating cavity for accommodating the electrode assembly; an exhaust mechanism provided on the casing, the exhaust mechanism including a connecting component and a breathable component, and the breathable component is configured to discharge gas to outside of the casing when gas pressure inside the casing reaches a threshold; and an electrolyte, filled in the casing; where gas permeability A of the breathable component, conductivity S of the electrolyte, and gas containment space V satisfy 20 mm2*ms/cm*ml

公开(公告)号：US20230378799A1

公开(公告)日：2023-11-23

申请号：US18361906

申请日：2023-07-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chenghua FU ,  Shaocong OUYANG ,  Baoyun XU ,  Xiaojian HUANG ,  Yonghuang YE ,  Wenjian MA

IPC: H02J7/02 ,  H02J7/00

CPC classification number: H02J7/02 ,  H02J7/0048

Abstract: A charge method includes obtaining a temperature of a battery, and in response to the temperature of the battery being lower than a preset temperature threshold, determining to use a first charge current to charge the battery until the battery meets a preset condition, and then determining to use a second charge current to charge the battery. The first charge current is used for heating the battery during charging, and the first charge current is greater than the second charge current.

公开(公告)号：US20230216062A1

公开(公告)日：2023-07-06

申请号：US18181830

申请日：2023-03-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wen CHANG ,  Chenghua FU ,  Chenchen ZHANG ,  Yonghuang YE ,  Suogang GUO

IPC: H01M4/70 ,  H01M4/04 ,  H01M4/62

CPC classification number: H01M4/70 ,  H01M4/62 ,  H01M4/0404

Abstract: An electrode assembly includes a first electrode plate and a second electrode plate. The first electrode plate includes a first current collector and a first active material layer, where the first current collector includes a first body portion and a first tab, the first active material layer is applied on a surface of the first body portion, and the first tab extends from an end of the first body portion in a first direction. The second electrode plate includes a second current collector and a second active material layer, where the second current collector includes a second body portion and a second tab, the second active material layer is applied on a surface of the second body portion, and the second tab extends from an end of the second body portion in the first direction.

公开(公告)号：US20230124276A1

公开(公告)日：2023-04-20

申请号：US18063405

申请日：2022-12-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Suogang GUO ,  Chenghua FU ,  Chenchen ZHANG ,  Yonghuang YE

IPC: H01M10/0587

Abstract: A lithium-ion battery includes a wound structure formed by winding a negative electrode plate, a separator, and a positive electrode plate in a winding direction. The wound structure includes an arc-shaped bending part. The negative electrode plate includes a negative electrode material layer. An insulation layer and a reaction layer are located on a surface of the insulation layer are provided on a surface of the negative electrode material layer in the bending part. The reaction layer includes a lithium storage material.