公开(公告)号：US12062812B2

公开(公告)日：2024-08-13

申请号：US17557003

申请日：2021-12-20

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Xia Hu ,  Yonghuang Ye ,  Qian Liu ,  Quanguo Li ,  Wei Li

IPC: H01M50/51 ,  B60L50/64 ,  H01M10/04 ,  H01M10/0525 ,  H01M50/209 ,  H01M50/249 ,  H01M50/258

CPC classification number: H01M50/51 ,  B60L50/64 ,  H01M10/0413 ,  H01M10/0525 ,  H01M50/209 ,  H01M50/249 ,  H01M50/258 ,  H01M2220/20

Abstract: The present application relates to a battery module and a method and equipment for manufacturing the same, a battery pack, and an apparatus. The battery module includes Type 1 battery cells and Type 2 battery cells connected in series; the Type 1 battery cells and the Type 2 battery cells satisfy the following criteria: 1.01×C1/C2≤N2≤1.25, and C1

公开(公告)号：US12087957B2

公开(公告)日：2024-09-10

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 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/103 ,  H01M50/209 ,  H01M50/291

CPC classification number: H01M50/242 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/103 ,  H01M50/209 ,  H01M50/291 ,  H01M2220/20

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：US12021242B2

公开(公告)日：2024-06-25

申请号：US17135540

申请日：2020-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Lile Liu ,  Xia Hu ,  Shaojun Niu ,  Yongbin Wu

IPC: H01M4/66 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/661 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

Abstract: This application provides a lithium-ion battery, a positive electrode plate for a lithium-ion battery, and an apparatus. The lithium-ion battery includes a positive electrode plate that includes a positive current collector and a positive active material layer arranged on at least one surface of the positive current collector. A positive active material in the positive active material layer includes a positive active substance I and a positive active substance II. The positive active substance I is a layered lithium nickel transition metal oxide. The positive active substance II is an olivine-type li-containing phosphate. The positive electrode plate satisfies 2.5≤N/(PD×(1−P1)×(1−A))≤21. The positive electrode plate for a lithium-ion battery has relatively high energy density, and a high transmission rate of lithium ions, which effectively increases instantaneous discharge power under a low SOC while ensuring high volume energy density of lithium-ion batteries using the positive electrode plate.

公开(公告)号：US11894573B2

公开(公告)日：2024-02-06

申请号：US17985813

申请日：2022-11-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M10/48 ,  H01M50/342 ,  H01M50/375 ,  H01M10/613

CPC classification number: H01M50/3425 ,  H01M10/486 ,  H01M10/613 ,  H01M50/375 ,  H01M2220/20

Abstract: This application relates to the field of energy storage technologies, and provides a battery, an apparatus, a preparation method of battery, and a preparation apparatus of battery. The battery includes a first battery cell and a second battery cell. The first battery cell includes a first pressure relief mechanism, the second battery cell includes a second pressure relief mechanism, an energy density of the first battery cell is greater than an energy density of the second battery cell, and an area of the first pressure relief mechanism is greater than an area of the second pressure relief mechanism. The apparatus includes the foregoing battery.

公开(公告)号：US20230075325A1

公开(公告)日：2023-03-09

申请号：US18046157

申请日：2022-10-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M4/36 ,  H01M4/131 ,  H01M4/136 ,  H01M4/58 ,  H01M4/525 ,  H01M4/1391 ,  H01M4/1397 ,  H01M10/058 ,  H01M10/0525 ,  H01M4/04

Abstract: A secondary battery and a preparation method thereof, and a battery module, battery pack, and apparatus containing a secondary battery are provided. In some embodiments, the secondary battery includes a positive electrode plate, a negative electrode plate, and an electrolyte, where the positive electrode plate includes a positive electrode current collector and a positive electrode film layer that is disposed on at least one surface of the positive electrode current collector and that includes a positive electrode active material, and the negative electrode plate includes a negative electrode current collector and a negative electrode film layer that is disposed on at least one surface of the negative electrode current collector and that includes a negative electrode active material; and the positive electrode active material includes a first material and a second material.

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：US20220115746A1

公开(公告)日：2022-04-14

申请号：US17557003

申请日：2021-12-20

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu LIANG ,  Xia Hu ,  Yonghuang Ye ,  Qian Liu ,  Quanguo Li ,  Wei Li

IPC: H01M50/51 ,  B60L50/64 ,  H01M50/249 ,  H01M50/258 ,  H01M10/0525 ,  H01M50/209 ,  H01M10/04

Abstract: The present application relates to a battery module and a method and equipment for manufacturing the same, a battery pack, and an apparatus. The battery module includes Type 1 battery cells and Type 2 battery cells connected in series; the Type 1 battery cells and the Type 2 battery cells satisfy the following criteria: 1.01×C1/C2≤N2≤1.25, and C1

公开(公告)号：US12002984B2

公开(公告)日：2024-06-04

申请号：US17985813

申请日：2022-11-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M10/48 ,  H01M10/613 ,  H01M50/342 ,  H01M50/375

CPC classification number: H01M50/3425 ,  H01M10/486 ,  H01M10/613 ,  H01M50/375 ,  H01M2220/20

Abstract: This application relates to the field of energy storage technologies, and provides a battery, an apparatus, a preparation method of battery, and a preparation apparatus of battery. The battery includes a first battery cell and a second battery cell. The first battery cell includes a first pressure relief mechanism, the second battery cell includes a second pressure relief mechanism, an energy density of the first battery cell is greater than an energy density of the second battery cell, and an area of the first pressure relief mechanism is greater than an area of the second pressure relief mechanism. The apparatus includes the foregoing battery.

公开(公告)号：US11804590B2

公开(公告)日：2023-10-31

申请号：US18046157

申请日：2022-10-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/058 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/058 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/20

Abstract: A secondary battery and a preparation method thereof, and a battery module, battery pack, and apparatus containing a secondary battery are provided. In some embodiments, the secondary battery includes a positive electrode plate, a negative electrode plate, and an electrolyte, where the positive electrode plate includes a positive electrode current collector and a positive electrode film layer that is disposed on at least one surface of the positive electrode current collector and that includes a positive electrode active material, and the negative electrode plate includes a negative electrode current collector and a negative electrode film layer that is disposed on at least one surface of the negative electrode current collector and that includes a negative electrode active material; and the positive electrode active material includes a first material and a second material.

公开(公告)号：US20210175511A1

公开(公告)日：2021-06-10

申请号：US17135540

申请日：2020-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Lile Liu ,  Xia Hu ,  Shaojun Niu ,  Yongbin Wu

IPC: H01M4/66 ,  H01M4/36 ,  H01M4/131 ,  H01M4/134 ,  H01M4/133 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0525

Abstract: This application provides a lithium-ion battery, a positive electrode plate for a lithium-ion battery, and an apparatus. The lithium-ion battery includes a positive electrode plate that includes a positive current collector and a positive active material layer arranged on at least one surface of the positive current collector. A positive active material in the positive active material layer includes a positive active substance I and a positive active substance II. The positive active substance I is a layered lithium nickel transition metal oxide. The positive active substance II is an olivine-type li-containing phosphate. The positive electrode plate satisfies 2.5≤N/(PD×(1−P1)×(1−A))≤21. The positive electrode plate for a lithium-ion battery has relatively high energy density, and a high transmission rate of lithium ions, which effectively increases instantaneous discharge power under a low SOC while ensuring high volume energy density of lithium-ion batteries using the positive electrode plate.