公开(公告)号：US20210126325A1

公开(公告)日：2021-04-29

申请号：US17139714

申请日：2020-12-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Min ZHANG ,  Xiao CHEN ,  Shaojun NIU

IPC: H01M50/533 ,  H01M50/105 ,  H01M50/184 ,  H01M50/186

Abstract: The present application provides a secondary battery, an apparatus and a manufacturing method for a secondary battery, and the secondary battery includes an electrode assembly, a packaging bag and an electrode lead. The packaging bag has a main body portion and a sealing portion. The sealing portion includes a top sealing region and a side sealing region. The top sealing region includes a first top sealing region and a second top sealing region, the second top sealing region extends from the first top sealing region and is connected to the side sealing region. The side sealing region has a first crease line. The top sealing region has a second crease line. An extension line of the first crease line intersects an extension line of the second crease line, and an intersection point is located on one side of the second top sealing region away from the electrode assembly.

公开(公告)号：US20240283059A1

公开(公告)日：2024-08-22

申请号：US18650145

申请日：2024-04-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Xing LI ,  Haizu JIN ,  Shaojun NIU ,  Fenggang ZHAO

IPC: H01M50/103 ,  H01M50/538 ,  H01M50/54 ,  H01M50/548 ,  H01M50/586 ,  H01M50/593

CPC classification number: H01M50/103 ,  H01M50/538 ,  H01M50/54 ,  H01M50/548 ,  H01M50/586 ,  H01M50/593

Abstract: A battery cell includes: a housing; an electrode unit accommodated in the housing and including a first electrode assembly and a second electrode assembly which are disposed along a first direction, wherein the first electrode assembly and the second electrode assembly are arranged in parallel, the first electrode assembly includes a first body and a first tab, and the second electrode assembly includes a second body and a second tab, and wherein a polarity of the first tab is the same as a polarity of the second tab, and at least a part of the first tab and at least a part of the second tab are located between the first body and the second body; and a first electrode terminal disposed on the housing and electrically connected to the first tab and the second tab to export electric energies of the first electrode assembly and the second electrode assembly.

公开(公告)号：US20240274975A1

公开(公告)日：2024-08-15

申请号：US18637470

申请日：2024-04-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Endong XU ,  Ting LI ,  Zhiwei XIAO ,  Shaojun NIU ,  Haizu JIN

IPC: H01M50/383 ,  H01M10/613 ,  H01M10/656 ,  H01M10/658 ,  H01M50/342 ,  H01M50/673

CPC classification number: H01M50/383 ,  H01M10/613 ,  H01M10/656 ,  H01M10/658 ,  H01M50/3425 ,  H01M50/673

Abstract: Some embodiments of this application disclose a battery and an electrical device. The battery includes: a battery cell, where a pressure relief mechanism is disposed on a first wall of the battery cell; and a protection plate, where the protection plate is disposed opposite to the pressure relief mechanism. The protection plate is a polymer-based composite fiberboard. The technical solution provided in this application can protect a box of the battery from airflow impact and high-temperature melting arising from thermal runaway of the battery, thereby enhancing safety performance of the battery.

公开(公告)号：US20240274962A1

公开(公告)日：2024-08-15

申请号：US18637389

申请日：2024-04-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Shaojun NIU ,  Haizu JIN ,  Xing LI ,  Fenggang ZHAO

IPC: H01M50/291 ,  H01M10/04 ,  H01M10/6554 ,  H01M50/213

CPC classification number: H01M50/291 ,  H01M10/0431 ,  H01M10/6554 ,  H01M50/213

Abstract: A battery cell includes a shell and three electrode assemblies wound into cylinders. The three electrode assemblies are arranged in a row in the shell in such a manner that axes of the three electrode assemblies are parallel to one another, the shell has a thickness middle surface connected to the axes of the three electrode assemblies, the thickness middle surface is in a V shape, the shell has a first side surface and a second side surface both in an arcuate wavy shape, the first side surface and the second side surface are opposite each other relative to the thickness middle surface of the shell, and the three electrode assemblies are arranged between the first side surface and the second side surface.

公开(公告)号：US20240250346A1

公开(公告)日：2024-07-25

申请号：US18430446

申请日：2024-02-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Haizu JIN ,  Shaojun NIU ,  Xing LI ,  Xiaomei LIU

IPC: H01M50/103 ,  H01M50/553

CPC classification number: H01M50/103 ,  H01M50/553 ,  H01M2220/20

Abstract: The embodiments of the present application provide a battery cell, a method and system for manufacturing a battery cell, a battery and an electrical device. The battery cell of the embodiment includes an electrode assembly, a casing, and a first electrode terminal. The casing is for accommodating the electrode assembly, an outer surface of the casing includes an outer side surface parallel to a first direction and a first surface connected with the outer side surface, the outer side surface is arranged surrounding the electrode assembly, the first surface intersects the first direction. The first electrode terminal is convexly arranged on the first surface and for electrically connecting with the electrode assembly, the first electrode terminal does not protrude, in the first direction, from an outermost end of the first surface along the first direction.

公开(公告)号：US20230307624A1

公开(公告)日：2023-09-28

申请号：US18315805

申请日：2023-05-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hanli FU ,  Zhenhua LI ,  Jiawei XU ,  Ziyu YANG ,  Shuoyan XU ,  Qiang GUO ,  Xing LI ,  Shaojun NIU ,  Haizu JIN

IPC: H01M4/505 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/054 ,  H01M4/131

CPC classification number: H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/054 ,  H01M4/131

Abstract: A secondary battery includes a negative electrode plate and a positive electrode plate. The negative electrode plate includes a negative electrode active material. The positive electrode plate includes a positive electrode active material. The negative electrode active material is selected from one or more of a silicon-based material and a tin-based material. The positive electrode active material has a molecular formula of M1xMnyM2zOaAb. M1 represents one or two of Mg and Al. M2 represents one or two of Co and Ni. A represents one or more of N, P, and S. 0

公开(公告)号：US20240372187A1

公开(公告)日：2024-11-07

申请号：US18773695

申请日：2024-07-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Shaojun NIU ,  Haizu JIN ,  Jipeng GUO ,  Yikuang JIN

IPC: H01M50/184 ,  H01M50/169

Abstract: A battery cell, a battery and an electric device are provided. The battery cell includes a casing, which is provided with an opening; an electrode assembly, which is accommodated inside the casing; and a cover body, which closes the opening and forms a sealing structure with the casing. One of the casing and the cover body is provided with a first flange portion; the first flange portion is connected to the other one of the casing and the cover body by means of a connection portion; the connection portion includes a first region and a second region; and the strength of the second region is lower than the strength of the first region.

公开(公告)号：US20240258584A1

公开(公告)日：2024-08-01

申请号：US18592946

申请日：2024-03-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ting LI ,  Haizu JIN ,  Shaojun NIU ,  Huaichao TANG ,  Longqing PENG

IPC: H01M10/42 ,  C23C16/02 ,  C23C16/34 ,  C23C16/40 ,  C23C16/44 ,  C23C16/505 ,  C23C16/56 ,  H01M10/04

CPC classification number: H01M10/4235 ,  C23C16/0245 ,  C23C16/345 ,  C23C16/401 ,  C23C16/403 ,  C23C16/405 ,  C23C16/407 ,  C23C16/4408 ,  C23C16/505 ,  C23C16/56 ,  H01M10/0404

Abstract: A protection method for a secondary battery includes evacuating the secondary battery through an injection opening of the secondary battery to within 100 kPa, introducing a first reactant into the secondary battery through the injection opening until a pressure of the secondary battery rises by more than 1 Pa and maintaining the pressure for more than 1 ms, evacuating the secondary battery through the injection opening to within 100 kPa, and introducing a second reactant into the secondary battery through the injection opening until the pressure rises by more than 1 Pa and maintaining the pressure for more than 1 ms, thereby forming a protection layer on an internal surface of the secondary battery.

公开(公告)号：US20240234989A1

公开(公告)日：2024-07-11

申请号：US18611691

申请日：2024-03-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Siying HUANG ,  Haizu JIN ,  Shaojun NIU ,  Wenqi ZHU

IPC: H01M50/593 ,  H01M10/0587 ,  H01M50/531

CPC classification number: H01M50/593 ,  H01M10/0587 ,  H01M50/531 ,  H01M2220/20

Abstract: A battery cell includes a housing, an end cap, an electrode assembly, and an insulator. An opening is created on the housing. The end cap is configured to fit and cover the opening. The electrode assembly is accommodated in the housing and includes a body portion, a first tab, and a second tab. The first tab and the second tab are of opposite polarities and located on a same side of the body portion. A least a part of the insulator is disposed between the first tab and the second tab and configured to restrict the first tab from deforming toward the second tab.

公开(公告)号：US20240222759A1

公开(公告)日：2024-07-04

申请号：US18602845

申请日：2024-03-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Haizu JIN ,  Xing LI ,  Shaojun NIU

IPC: H01M50/209 ,  H01M10/04 ,  H01M50/103 ,  H01M50/548

CPC classification number: H01M50/209 ,  H01M10/0431 ,  H01M50/103 ,  H01M50/548

Abstract: A battery cell includes a first electrode assembly and a second electrode assembly, where the first electrode assembly and the second electrode assembly differ in size and/or capacity so as to fit a structure of the battery cell.