公开(公告)号：US20230117186A1

公开(公告)日：2023-04-20

申请号：US17939983

申请日：2022-09-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang SHI ,  Ning CHEN ,  Shuangshuang LIU ,  Sitong LIU

IPC: H01M4/48 ,  H01M4/04 ,  H01M4/583 ,  H01M10/0525

Abstract: Provided in the present application is a negative electrode plate comprising a current collector and a coating applied to at least one surface of the current collector, the coating comprising a negative electrode active material and a metal powder, wherein the electrode potential of the metal powder in the coating relative to lithium may be between 1.6 and 3.5 V, the negative electrode active material may be a silicon-based material, and relative to the total weight of the silicon-based material and the metal powder, the proportion by weight of the metal powder may be 5 to 20% and the proportion by weight of the silicon-based material may be 80 to 95%.

公开(公告)号：US20220085448A1

公开(公告)日：2022-03-17

申请号：US17419697

申请日：2019-03-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhenhua LI ,  Haizu JIN ,  Dongyang SHI ,  Ning CHEN ,  Fei HU ,  Yuanbao CHEN

IPC: H01M50/213 ,  H01M50/545 ,  B60L50/64 ,  H01M10/04 ,  H01M10/625

Abstract: The present disclosure relates to the technical field of energy storage devices, and provides a battery cell assembly (10), a battery module (100), and a battery pack (200). The battery cell assembly (10) includes: at least two battery cells (1) and an insulation film (2). The at least two battery cells (1) are stacked. Each battery cell (1) includes an electrode assembly (11) and a battery housing (12). The electrode assembly (11) is accommodated in the battery housing (12). The electrode assembly (11) includes a first electrode plate (111), a second electrode plate (112), and a separator (113) disposed between the first electrode plate (111) and the second electrode plate (112). The insulation film (2) surrounds a periphery of the at least two battery cells (1) to wrap the at least two battery cells (1) together. A gap between adjacent battery cells (1) is reduced, which is advantageous not only in increasing an energy density of the battery module (100) and the battery pack (200), but also in reducing the amount of consumption of the insulation film (2).

公开(公告)号：US20210313644A1

公开(公告)日：2021-10-07

申请号：US17353933

申请日：2021-06-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haizu JIN ,  Linggang ZHOU ,  Peng WANG ,  Dongyang SHI ,  Xingdi CHEN ,  Fei Hu ,  Fenggang ZHAO ,  Yanhuo XIANG ,  Yongshou LIN

IPC: H01M50/209 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/591 ,  H01M50/533

Abstract: The embodiments of the present disclosure provide a battery module and a battery pack. A battery module includes: a cooling component; and a battery group, comprising secondary batteries disposed side by side in a first direction and each including a case having an accommodating hole, an electrode assembly disposed in the accommodating hole, and a cap assembly, the electrode assembly including two end faces disposed opposite to each other in a second direction intersecting the first direction and an electrode tab extending from each end face. The secondary batteries each includes two sides opposite to each other in the second direction, the cooling component is disposed on at least one of the two sides, the cooling component and the end face are respectively disposed on two sides of the case in the second direction, and the cooling component is connected and fixed to each of the secondary batteries.

公开(公告)号：US20200212407A1

公开(公告)日：2020-07-02

申请号：US16424058

申请日：2019-05-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuanbao CHEN ,  Rui YANG ,  Dongyang SHI ,  Ning CHEN ,  Fei HU ,  Zhenhua LI

IPC: H01M2/26 ,  H01M2/10 ,  H01M10/04

Abstract: The disclosure relates to a secondary battery and a battery module. The secondary battery comprises: a case comprising a receiving hole having an opening; a cap assembly sealingly connected with the case to close the opening; an electrode assembly disposed in the receiving hole, wherein the electrode assembly comprises two end surfaces opposite to each other in a first direction perpendicular to an axial direction of the receiving hole and tabs extending from respective end surfaces, and the electrode assembly comprises two or more electrode units which are stacked in the axial direction; and a current collecting unit comprising a first sheet and a first current collecting sheet connected to the first sheet, wherein both the first sheet and the first current collecting sheet extend in the axial direction, and the tab is bent with respect to the first direction and is electrically connected to the first current collecting sheet.

公开(公告)号：US20240047785A1

公开(公告)日：2024-02-08

申请号：US18487693

申请日：2023-10-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei CHEN ,  Dongyang SHI ,  Baiqing LI

IPC: H01M10/6568 ,  H01M10/613 ,  H01M10/654 ,  H01M50/15 ,  H01M10/6556 ,  H01M50/169 ,  H01M10/625 ,  H01M50/538

CPC classification number: H01M10/6568 ,  H01M10/613 ,  H01M10/654 ,  H01M50/15 ,  H01M10/6556 ,  H01M50/169 ,  H01M10/625 ,  H01M50/538 ,  H01M2220/20

Abstract: A battery cell includes an electrode assembly, a housing, and two end caps. The housing includes two openings opposite to each other in a first direction, a housing wall closing around, and a partitioning portion disposed in the housing wall. The partitioning portion partitions an inner cavity of the housing into a first cavity and a second cavity independent of each other in a second direction. The second direction is perpendicular to the first direction. The first cavity is configured to accommodate the electrode assembly. The second cavity forms a flow channel for a cooling liquid. The two end caps are disposed at the two openings, respectively. The end caps are hermetically connected to the housing wall, and the end caps are hermetically connected to end faces of the partitioning portion, respectively.

公开(公告)号：US20230246157A1

公开(公告)日：2023-08-03

申请号：US18296794

申请日：2023-04-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhi LIU ,  Hailin FAN ,  Sitong LIU ,  Dongyang SHI

IPC: H01M4/04 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0525

CPC classification number: H01M4/0404 ,  H01M4/525 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/027

Abstract: The present disclosure provides an anode plate of a lithium-ion battery and application thereof. The anode plate comprises a current collector, an anode active material layer, and a specially designed lithium-precipitation inhibiting layer. The anode plate of the present disclosure can effectively avoid the lithium precipitation on a surface of the anode plate in an economical and simple way, and meanwhile effectively reduce a capacity ratio of an anode to a cathode, and improve the initial coulombic efficiency, cycle life, energy density, and safety of the lithium-ion battery.

公开(公告)号：US20210119297A1

公开(公告)日：2021-04-22

申请号：US17135918

申请日：2020-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang SHI ,  Zhenhua LI ,  Haizu JIN ,  Ning CHEN ,  Fei HU ,  Yuanbao CHEN ,  Rui YANG

IPC: H01M50/271 ,  H01M50/296 ,  H01M50/593 ,  H01M50/204 ,  H01M50/249 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/342 ,  B60L50/64

Abstract: Disclosed are a secondary battery, a battery module and an electric vehicle. The secondary battery includes an electrode assembly, a housing and a top cover assembly. The housing has an accommodating chamber, the accommodating chamber having an opening, and the electrode assembly being accommodated in the accommodating chamber. The electrode assembly includes a plurality of electrode units, the plurality of electrode units being stacked in an axial direction of the accommodating chamber. The top cover assembly includes a top cover plate, a first electrode terminal and a second electrode terminal, the top cover plate being connected to the housing and located on a side of the electrode assembly in the axial direction, and the first electrode terminal and the second electrode terminal both protruding from the top cover plate and being electrically connected to the electrode assembly.

公开(公告)号：US20240274925A1

公开(公告)日：2024-08-15

申请号：US18437150

申请日：2024-02-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei CHEN ,  Donglai ZHENG ,  Dongyang SHI ,  Chuan LI ,  Donglai GUAN

IPC: H01M50/133 ,  H01M10/04 ,  H01M50/169 ,  H01M50/586

CPC classification number: H01M50/133 ,  H01M50/586 ,  H01M10/0409 ,  H01M10/0431 ,  H01M50/169

Abstract: A battery cell includes a housing having an opening at an end along a first direction, an electrode assembly contained in the housing and having a main body and a tab connected to the main body, and an end cap configured for covering the opening. The housing includes a first side plate having a first plate portion and a second plate portion both arranged along the first direction. The second plate portion is located at an end of the first plate portion near the opening, and a thickness of the second plate portion is greater than a thickness of the first plate portion. An end of the second plate portion near the first plate portion extends beyond the welded portion in the first direction. The main body does not overlap with the second plate portion in a thickness direction for the first side plate.

公开(公告)号：US20210119292A1

公开(公告)日：2021-04-22

申请号：US17137172

申请日：2020-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haizu JIN ,  Fei HU ,  Zhenhua LI ,  Dongyang SHI ,  Rui YANG ,  Yuqun ZENG ,  Yongshou LIN

IPC: H01M50/20 ,  H01M50/15 ,  H01M50/147

Abstract: The present disclosure provides a battery module and a battery pack. The battery pack comprises a box and a battery module, the battery module is accommodated in the box. The battery module comprises batteries sequentially arranged in a first direction. The battery comprises an electrode assembly, a case and a cap assembly, the electrode assembly is received in the case, and the cap assembly is connected with the case. The case comprises two first side walls, and the two first side walls are respectively positioned at two sides of the electrode assembly in the first direction. The first side walls of two adjacent batteries face each other. An area of the first side wall is defined as S1, a distance between the electrode assemblies of two adjacent batteries in the first direction is defined as D, S1 and D satisfying a relationship: 1.2×10−5 mm−1≤D/S1≤500×10−5 mm−1.

公开(公告)号：US20210119287A1

公开(公告)日：2021-04-22

申请号：US17138716

申请日：2020-12-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang SHI ,  Zhenhua LI ,  Ning CHEN ,  Rui YANG ,  Haizu JIN ,  Fei HU

IPC: H01M50/147 ,  H01M50/572 ,  H01M50/204 ,  H01M50/538 ,  H01M50/54 ,  H01M10/04

Abstract: Disclosed are a secondary battery, a battery module and an electric vehicle. The battery module includes a plurality of secondary batteries arranged in sequence. The secondary battery includes an electrode assembly, a housing and a top cover assembly. The electrode assembly is accommodated in an accommodating chamber of the housing. The electrode assembly includes a plurality of electrode units, the plurality of electrode units being stacked in an axial direction of the accommodating chamber. The top cover assembly includes a top cover plate and an insulating member arranged on an inner side of the top cover plate, the top cover plate being connected to the housing, the insulating member being located on a side of the electrode assembly in the axial direction. A first buffer gap is provided between the insulating member and the top cover plate.