公开(公告)号：US20240332632A1

公开(公告)日：2024-10-03

申请号：US18736645

申请日：2024-06-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shaocong OUYANG ,  Chenghua FU ,  Baoyun XU ,  Miaomiao DONG ,  Yonghuang YE

IPC: H01M10/0585 ,  H01M4/02 ,  H01M4/133 ,  H01M10/44 ,  H01M50/204

CPC classification number: H01M10/0585 ,  H01M4/133 ,  H01M10/441 ,  H01M50/204 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20

Abstract: A battery pack may include a first battery cell type and a second battery cell type, wherein the first battery cell type may include n first battery cells, and the second battery cell type may include m second battery cells, with n and m being each independently selected from an integer of 1 or more, wherein the second battery cell may have a discharge power at −20° C. greater than that of the first battery cell, the difference in discharge power at −20° C. between the second battery cells and the first battery cells being ≥10 W; the percentage by number of the first battery cells in the battery cells comprised in area A may be 20% to 100%, and the percentage by number of the second battery cells in the battery cells comprised in the area B may be 5% to 100%.

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：US20230231202A1

公开(公告)日：2023-07-20

申请号：US18118756

申请日：2023-03-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shaocong OUYANG ,  Chenghua FU ,  Baoyun XU ,  Miaomiao DONG ,  Yonghuang YE

IPC: H01M10/0585 ,  H01M50/204 ,  H01M4/133 ,  H01M10/44

CPC classification number: H01M10/0585 ,  H01M50/204 ,  H01M4/133 ,  H01M10/441 ,  H01M2220/20 ,  H01M2004/028

Abstract: A battery pack may include a first battery cell type and a second battery cell type, wherein the first battery cell type may include n first battery cells, and the second battery cell type may include m second battery cells, with n and m being each independently selected from an integer of 1 or more, wherein the second battery cell may have a discharge power at −20° C. greater than that of the first battery cell, the difference in discharge power at −20° C. between the second battery cells and the first battery cells being ≥10 W; the percentage by number of the first battery cells in the battery cells comprised in area A may be 20% to 100%, and the percentage by number of the second battery cells in the battery cells comprised in the area B may be 5% to 100%.

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：US20230076751A1

公开(公告)日：2023-03-09

申请号：US17985851

申请日：2022-11-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaofu XU ,  Yonghuang YE ,  Haizu JIN ,  Chengdu LIANG ,  Wenwei CHEN ,  Quanguo LI

IPC: H01M10/617 ,  H01M10/647 ,  H01M10/6556 ,  H01M10/04

Abstract: Embodiments of this application provide a battery, an apparatus using a battery, and a manufacturing method and a manufacturing device of battery. The battery includes a battery cell and a thermal management component. The battery cell has a side wall and a bottom wall that are connected to each other. The thermal management component is configured to accommodate fluid to regulate temperature of the battery cell, where an accommodating portion is provided on the thermal management component, and configured to accommodate the battery cell, and the accommodating portion is attached to the bottom wall and side wall of the battery cell, to enable heat transfer between the battery cell and the thermal management component. The battery cell in the battery provided in the embodiments of this application can dissipate heat efficiently.

公开(公告)号：US20240204204A1

公开(公告)日：2024-06-20

申请号：US18592838

申请日：2024-03-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lianhua LI ,  Xianwei YANG ,  Yang LU ,  Shaowei QI ,  Chen QI ,  Zirui WU ,  Chao JIN ,  Miaomiao REN ,  Yonghuang YE

IPC: H01M4/66 ,  H01M4/74

CPC classification number: H01M4/667 ,  H01M4/662 ,  H01M4/664 ,  H01M4/668 ,  H01M4/74

Abstract: The present application provides a current collector, electrode plate, cell, battery, device, manufacturing method, and apparatus. The current collector includes a conductive layer and a support layer, wherein the conducive layer is provided on a surface of the support layer, and the support layer includes an insulating base and a support structure embedded in the insulating base to enhance strength of the support layer, which not only increases an overall strength of the current collector and can improve the problem of tape breakage during processing, but also allows strength of the support layer to be close to strength of the conductive layer, narrowing the gap in structural strength between the support layer and the conductive layer, and reducing the difference in deformation between the conductive layer and the support layer during processing, so that it is conducive to improving processing performance of the current collector.

公开(公告)号：US20240105939A1

公开(公告)日：2024-03-28

申请号：US18338690

申请日：2023-06-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yiyang WU ,  Yonghuang YE ,  Baozhen WU ,  Kai WU

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

CPC classification number: H01M4/5825 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/20

Abstract: A positive electrode plate includes a first active material and a second active material. The first active material is selected from a lithium iron phosphate-based material represented by a formula LiFe1-xMnxPO4, where x is between 0-0.8. The second active material includes one or more of lithium nickelate, lithium manganate, lithium cobaltate, lithium nickel cobalt manganate, lithium nickel cobalt aluminate, a lithium-rich manganese base, and lithium vanadium phosphate. An amount of the second active material used accounts for, by mass, 10-70%, on the basis of a total mass of the first active material and the second active material.

公开(公告)号：US20240097272A1

公开(公告)日：2024-03-21

申请号：US18518611

申请日：2023-11-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wanqiu MENG ,  Qian LIU ,  Yonghuang YE ,  Yulian ZHENG ,  Longfei XUE ,  Xiaoxi ZHANG

IPC: H01M50/30

CPC classification number: H01M50/394

Abstract: A gas-exhausting apparatus includes a gas-exhausting body and a gas-exhausting mechanism. The gas-exhausting mechanism includes a connecting assembly and a gas-ventilating member. The connecting assembly includes first and second connecting members. The first connecting member is provided with a first through hole for communicating with an inside of the battery cell. The second connecting member is provided with a second through hole for communicating with an outside of the battery cell. The first connecting member is configured to attach to a surface of the gas-ventilating member facing the inside of the battery cell. The second connecting member is configured to attach to a surface of the gas-ventilating member facing away from the inside of the battery cell. An orthographic projection of the first through hole on the gas-ventilating member and an orthographic projection of the second through hole on the gas-ventilating member are arranged to be staggered from each other.