公开(公告)号：US20230318073A1

公开(公告)日：2023-10-05

申请号：US18328719

申请日：2023-06-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qian LIU ,  Yonghuang YE ,  Haizu JIN ,  Quanguo LI ,  Xiaofu XU ,  Jianfu HE

IPC: H01M10/647 ,  H01M50/209 ,  H01M50/51

CPC classification number: H01M10/647 ,  H01M50/209 ,  H01M50/51

Abstract: A battery module includes one or more first battery cells and one or more second battery cells. A first number a of the one or more first battery cells is greater than or equal to a second number b of the one or more second battery cells. A first product X1 of a first volumetric energy density E1 and a first thickness T1 of each of the one or more first battery cells and a second product X2 of a second volumetric energy density E2 and a second thickness T2 of each of the one or more second battery cells satisfy. 0.35≤X1/X2≤18.

公开(公告)号：US20230231390A1

公开(公告)日：2023-07-20

申请号：US18125143

申请日：2023-03-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaofu XU ,  Yonghuang YE ,  Xinyu ZHANG ,  Jianfu PAN ,  Qian LIU ,  Quanguo LI

IPC: H02J7/00 ,  H01M4/525 ,  H01M10/44 ,  H01M50/51 ,  H01M4/131

CPC classification number: H02J7/0016 ,  H01M4/525 ,  H01M10/446 ,  H01M50/51 ,  H01M4/131 ,  H02J7/0048

Abstract: A battery unit may comprise a first cell type and a second cell type electrically connected at least in series, wherein the first cell type may include N first cells, the second cell type may include M second cells, and N and M are positive integers; the first cell may have a discharge cell balance rate of CB1, the second cell may have a discharge cell balance rate of CB2, with 0.5≤CB1≤CB2≤1.4, and when the battery unit is charged to 95%-100% of the state of charge, the first cell may have a corresponding open-circuit voltage change rate of not greater than 0.005 V/% SOC, and the second cell type may have a corresponding open-circuit voltage change rate greater than that of the first cell.

公开(公告)号：US20230231263A1

公开(公告)日：2023-07-20

申请号：US18054375

申请日：2022-11-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Yonghuang YE ,  Haizu JIN ,  Chengdu LIANG ,  Qian LIU

IPC: H01M50/358 ,  H01M10/6555 ,  H01M50/204

CPC classification number: H01M50/358 ,  H01M10/6555 ,  H01M50/204

Abstract: This application provides a battery, an apparatus, and a manufacturing method and an apparatus of batteries, and relates to the field of energy storage technologies. The battery includes two battery cells and two discharge channels. The two battery cells each include a pressure relief mechanism, and the pressure relief mechanism is configured to be actuated when internal pressure or temperature in the battery cell reaches a threshold, to release the internal pressure. The two discharge channels are configured to collect emissions respectively from the corresponding battery cell when the pressure relief mechanism is actuated.

公开(公告)号：US20230170484A1

公开(公告)日：2023-06-01

申请号：US18069187

申请日：2022-12-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Qian LIU ,  Yonghuang YE ,  Jianfu HE ,  Fajun HUANG ,  Chunpeng YU ,  Dejun XIAO

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525

CPC classification number: H01M4/623 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M2004/028

Abstract: A positive electrode sheet includes a current collector, a resistance layer disposed on the current collector, and a positive electrode active material layer. The current collector includes a coating region and a non-coating region. The resistance layer includes a conductive agent and a first binder. The positive electrode active material layer includes a positive electrode active material, a conductive agent, and a second binder. A resistance of the resistance layer is greater than a resistance of the positive electrode active material layer. In a cross section of the positive electrode sheet, a projection of a part of the positive electrode active material layer on the current collector overlaps with a projection of the resistance layer on the current collector, and a projection of another part of the positive electrode active material layer on the current collector does not overlap with the projection of the resistance layer on the current collector.

公开(公告)号：US20230016240A1

公开(公告)日：2023-01-19

申请号：US17942022

申请日：2022-09-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qian LIU ,  Xia Hu ,  Quanguo Li ,  Yonghuang Ye ,  Wei Li

IPC: H01M4/58 ,  H01M4/505 ,  H01M4/525

Abstract: This application provides a secondary battery and a preparation method thereof, and a battery module, battery pack, and apparatus containing a secondary battery. The secondary battery includes a positive electrode plate, the positive electrode plate includes a positive electrode current collector and a positive electrode film layer that is disposed on the positive electrode current collector and that includes a positive electrode active material, where the positive electrode active material includes a first material and a second material, the first material contains lithium transition metal oxide, the second material contains lithium transition metal phosphate, the lithium transition metal phosphate includes secondary particles formed by agglomeration of primary particles, and the second material has a lower discharge platform voltage than the first material with respect to a same type of counter electrode.

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：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：US20230071423A1

公开(公告)日：2023-03-09

申请号：US17988242

申请日：2022-11-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaofu XU ,  Yonghuang YE ,  Haizu JIN ,  Chengdu LIANG ,  Qian LIU ,  Xia HU

IPC: H01M50/242 ,  H01M50/209 ,  H01M50/291 ,  H01M50/103 ,  H01M10/613 ,  H01M10/6556

Abstract: A battery includes a plurality of battery cells and a support member configured to support the plurality of battery cells. The support member includes a recess. One battery cell of the battery cells extends into and is supported in the recess.

公开(公告)号：US20230068186A1

公开(公告)日：2023-03-02

申请号：US17903677

申请日：2022-09-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jingxuan SUN ,  Jianfu HE ,  Yonghuang YE ,  Qian LIU ,  Xueyang SUN ,  Xiaofu XU

IPC: H01M50/682 ,  H01M50/618 ,  H01M50/143 ,  H01M50/317 ,  H01M50/383

Abstract: A tank includes a plurality of independent accommodation cavities. Each of the accommodation cavities includes a corresponding fragile structure, and the fragile structures possess different packaging strengths.

公开(公告)号：US20230065566A1

公开(公告)日：2023-03-02

申请号：US17965281

申请日：2022-10-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jingxuan SUN ,  Jianfu HE ,  Yonghuang YE ,  Qian LIU ,  Xueyang SUN ,  Xiaofu XU

IPC: H01M50/682 ,  H01M50/124 ,  H01M50/342

Abstract: Embodiments of this application provide a battery cell, which includes a housing and an electrode assembly. The electrode assembly is accommodated in the housing. A film structure is arranged at a position located on an inner wall of the housing and opposite to the electrode assembly. The film structure combines with the inner wall of the housing to form a capsule structure. An accommodation cavity is formed inside the capsule structure. In this way, the capsule structure is more space-efficient, and the battery cell is more structurally compact.