公开(公告)号：US12113249B2

公开(公告)日：2024-10-08

申请号：US18353605

申请日：2023-07-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Denghua Lin ,  Jie Sun ,  Zhijun Guo ,  Yongbin Wu ,  Peng Wang ,  Haizu Jin

IPC: H01M50/593

CPC classification number: H01M50/593 ,  H01M2220/20

Abstract: A battery cell includes a housing having an opening, a cover plate configured to close the opening, and an electrode assembly disposed in the housing and including a main body and a tab extending from an end of the main body along a first direction. The cover plate is located on a side of the main body along a second direction perpendicular to the first direction. The battery cell further includes a first insulation piece disposed between the electrode assembly and the cover plate to dielectrically insulate the electrode assembly from the cover plate, and a second insulation piece disposed between the main body and an inner surface of the housing to dielectrically insulate the tab from the housing. The second insulation piece and the first insulation piece are discretely disposed and connected to each other.

公开(公告)号：US12113162B2

公开(公告)日：2024-10-08

申请号：US17556991

申请日：2021-12-20

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Qian Liu ,  Yonghuang Ye ,  Chengdu Liang ,  Haizu Jin ,  Quanguo Li

IPC: H01M10/04 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/625 ,  H01M50/258 ,  H01M50/509

CPC classification number: H01M10/04 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/625 ,  H01M50/258 ,  H01M50/509 ,  H01M2220/20

Abstract: The present application provides a battery and an apparatus. The battery includes: a first-type battery cell group and a second-type battery cell group which are connected in series, wherein the first-type battery cell group is composed of multiple first-type batteries connected in parallel, and the second type battery cell group is composed of at least one second type battery cell connected in parallel; the first-type battery cell and the second-type battery cell are battery cells of different chemical systems, and the volume energy density of the first-type battery cell is less than that of the second-type battery cell; and the capacity Cap1 of the first-type battery cell group is greater than the capacity Cap2 of the second-type battery cell group, in which Cap1 is the sum of the capacities of the corresponding first-type battery cells, and Cap2 is the sum of the capacities of the corresponding second-type battery cells.

公开(公告)号：US12068468B2

公开(公告)日：2024-08-20

申请号：US17892621

申请日：2022-08-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Yonghuang Ye ,  Chengdu Liang ,  Haizu Jin ,  Qian Liu ,  Xiaofu Xu

IPC: H01M10/052 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M16/00 ,  H01M50/209 ,  H01M50/489 ,  H01M4/02

CPC classification number: H01M16/00 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M50/209 ,  H01M50/489 ,  H01M2004/028

Abstract: The application relates to a battery module, a manufacturing method and a manufacturing device thereof, a battery pack and a power consumption apparatus. The battery module includes a first-type battery cell and a second-type battery cell having different chemical systems and being electrically connected at least in series, where under the conditions of 25° C. and 100% state of charge (SOC), specific power density P2 of the second-type battery cell is higher than specific power density P1 of the first-type battery cell. Satisfying: 0.04≤(r1/m)/(r2/n)≤14, where, r1 and r2 are resistances per unit area of a positive electrode plate of the first-type battery cell and a positive electrode plate of the second-type battery cell respectively, and m and n are numbers of laminations of the positive electrode plate of the first-type battery cell and the positive electrode plate of the second-type battery cell.

公开(公告)号：US20240222752A1

公开(公告)日：2024-07-04

申请号：US18609680

申请日：2024-03-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qiang LIU ,  Haihe Xiao ,  Xiaowen Zhang ,  Baiqing Li ,  Haizu Jin

IPC: H01M50/15 ,  H01M10/04 ,  H01M50/103 ,  H01M50/176 ,  H01M50/548

CPC classification number: H01M50/15 ,  H01M10/049 ,  H01M50/103 ,  H01M50/176 ,  H01M50/548

Abstract: A battery cell, a battery, an electrical apparatus, and a manufacturing method of a battery cell are provided. The battery cell includes a case, an electrode assembly, an end cover, a first terminal post, and a second terminal post. The case includes two side walls which are perpendicular to a first direction and are spaced apart, and a bottom wall perpendicular to a second direction and connected to the two side walls; the case is provided with a first side opening and a second side opening which are opposite to each other in a third direction, and a top opening opposite to the bottom wall. The electrode assembly is arranged in an accommodating cavity and includes a main body part, and a first tab and a second tab which extend out of the main body part and have opposite polarities. The end cover is connected with the case.

公开(公告)号：US11952466B2

公开(公告)日：2024-04-09

申请号：US18381178

申请日：2023-10-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianghui Lin ,  Yanjie Zhao ,  Xing Li ,  Haizu Jin

IPC: C08G79/14 ,  H01M4/62

CPC classification number: C08G79/14 ,  H01M4/623 ,  H01M2220/20

Abstract: The present application relates to a binder compound of formula (I), a method for preparing the same, and an electrode sheet comprising the same. In formula (I), R1, R2, and R3 each independently represents an unsubstituted or substituted linear or branched alkyl with 1-6 carbon atoms, or an unsubstituted or substituted aryl with 6-20 carbon atoms; R4 represents —COOM; R5 represents a bridging oxo or bridging imino; each M independently represents one of Li, Na, K, Rb, and Cs; Z represents a linear or branched alkylene with 1-6 carbon atoms; m is an integer selected from 7,600 to 47,000; n is an integer selected from 1,520 to 94,000; and m/n=0.1-10.

公开(公告)号：US11901555B2

公开(公告)日：2024-02-13

申请号：US18149672

申请日：2023-01-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quanguo Li ,  Yonghuang Ye ,  Chengdu Liang ,  Haizu Jin ,  Qian Liu ,  Fajun Huang ,  Xiaofu Xu

IPC: H01M4/525 ,  H01M10/615 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/654 ,  H01M50/204 ,  H01M50/233 ,  H01M50/267 ,  H01M10/617

CPC classification number: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/615 ,  H01M10/617 ,  H01M10/654 ,  H01M50/204 ,  H01M50/233 ,  H01M50/267

Abstract: A battery module, a battery pack, and an electric apparatus are provided. In some embodiments, the battery module includes a first type of cell and a second type of cell that are cells of different chemical systems, where the first type of cell includes n first cells, the second type of cell includes m second cells, n and m each are selected from an integer greater than 1, at least one of the first cells and at least one of the second cells are electrically connected in series, and the first cell and the second cell satisfy at least the following relationships: 0.08≤ΔRB/ΔRA≤3.50, and 0.10 mΩ/100 cycles≤ΔRA≤0.40 mΩ/100 cycles, where ΔRA is a discharge resistance growth rate of the first cell, and ΔRB is a discharge resistance growth rate of the second cell; and IMPB

公开(公告)号：US20240047813A1

公开(公告)日：2024-02-08

申请号：US18489834

申请日：2023-10-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianfu He ,  Qian Liu ,  Yonghuang Ye ,  Quanguo Li ,  Xiaofu Xu ,  Haizu Jin

IPC: H01M50/267 ,  H01M50/213 ,  H01M10/643 ,  H01M50/14

CPC classification number: H01M50/267 ,  H01M50/213 ,  H01M10/643 ,  H01M50/14 ,  H01M2220/20 ,  H01M10/625

Abstract: Provided are a battery pack and an electric apparatus. The battery pack of this application includes multiple battery cells arranged repeatedly in a unit structure, where the unit structure includes N1 first battery cells and N2 second battery cells, the N1 first battery cells surrounding the N2 second battery cells, N1 and N2 being integers greater than or equal to 1, and N1>N2. Given that the first battery cell has a volumetric energy density denoted as D1 and a direct current impedance denoted as R1, and that the second battery cell has a volumetric energy density denoted as D2 and a direct current impedance denoted as R2, the unit structure has a thermal stability factor μ=(D1×R1)/(D2×R2) satisfying 0.2≤μ≤1.

公开(公告)号：US20240047758A1

公开(公告)日：2024-02-08

申请号：US18488244

申请日：2023-10-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haihe XIAO ,  Xiaowen Zhang ,  Shuangjuan Peng ,  Yaping Huang ,  Baiqing Li ,  Haizu Jin ,  Xigen Zhou

IPC: H01M10/0583 ,  H01M50/533 ,  H01M50/46

CPC classification number: H01M10/0583 ,  H01M50/533 ,  H01M50/46 ,  H01M2220/20 ,  H02J7/0063

Abstract: A battery cell, a battery, a power consuming device, and a method for manufacturing a battery cell are provided. The battery cell includes: a shell; and an electrode assembly arranged in the shell and including a first electrode plate and a second electrode plate having an opposite polarity to the first electrode plate. The first electrode plate is repeatedly folded in a first direction such that the first electrode plate comprises a plurality of first stack sections connected and stacked in sequence, and the second electrode plate is folded once in a second direction such that the second electrode plate comprises two second stack sections connected to each other, the second direction being perpendicular or parallel to the first direction. The second stack sections and the first stack sections are stacked alternately in sequence. A bent portion of the second electrode plate is in contact with an inner wall of the shell.

公开(公告)号：US20240021782A1

公开(公告)日：2024-01-18

申请号：US18471332

申请日：2023-09-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huaichao Tang ,  Ting Li ,  Longqing Peng ,  Shaojun Niu ,  Haizu Jin ,  Minggao Ouyang ,  Kai Wu

IPC: H01M4/13 ,  H01M50/534 ,  H01M50/586

CPC classification number: H01M4/13 ,  H01M50/534 ,  H01M50/586

Abstract: Provided are an electrode plate and a secondary battery having the same. The electrode plate comprises a current collector and an active material layer, wherein the current collector comprises a main body portion and tabs, the active material layer is coated on the surface of the main body portion, and the tabs extend from one end of the main body portion along the first direction; a first insulating portion is formed on the end face of the main body portion that is provided with the tabs, and a second insulating portion different from the first insulating portion is formed on the end faces of the main body portion that are not provided with the tabs. The electrode plate of the present application has a good end-face insulation protection and can improve the safety performance of the secondary battery.

公开(公告)号：US11865943B2

公开(公告)日：2024-01-09

申请号：US18182841

申请日：2023-03-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chenxu Luo ,  Jianfu He ,  Qian Liu ,  Yu Yan ,  Yonghuang Ye ,  Haizu Jin

IPC: H02J7/00 ,  B60L58/16 ,  B60L58/18 ,  B60L58/24 ,  H01M50/572 ,  H01M50/155 ,  H01M4/485 ,  H01M10/44

CPC classification number: B60L58/16 ,  B60L58/18 ,  B60L58/24 ,  H01M4/485 ,  H01M10/44 ,  H01M50/155 ,  H01M50/572 ,  B60L2240/545 ,  B60L2240/547

Abstract: A charging method for a secondary battery including a lithium-supplementing material. The method includes acquiring a first state of health of the secondary battery in response to the secondary battery being at a preset charging node, activating the lithium-supplementing material in response to the first state of health being less than or equal to a first threshold to supplement lithium for the secondary battery, performing a charging process on the secondary battery, determining a second state of health of the secondary battery based on a working parameter of the secondary battery in the charging process, and charging the secondary battery in response to the second state of health being greater than a second threshold.