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：US20240266688A1

公开(公告)日：2024-08-08

申请号：US18639956

申请日：2024-04-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hui GU ,  Haizu JIN ,  Baiqing LI ,  Fenggang ZHAO

IPC: H01M50/533 ,  H01M50/107 ,  H01M50/152 ,  H01M50/169

CPC classification number: H01M50/533 ,  H01M50/107 ,  H01M50/152 ,  H01M50/169

Abstract: A battery cell includes: a housing, wherein an opening is provided at an end portion of the housing; an electrode assembly arranged inside the housing, the electrode assembly including an electrode body and a first tab, the first tab being leaded from one end of the electrode body; an end cap closing the opening, the outer periphery of the end cap being fixed to the housing by welding; and a conductive piece located between the electrode assembly and the end cap, the conductive piece being electrically connected to the first tab, the conductive piece being electrically connected to at least one of the end cap and the housing, and an outer edge of the conductive piece extending at a position close to a welding region.

公开(公告)号：US20240250390A1

公开(公告)日：2024-07-25

申请号：US18436959

申请日：2024-02-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhisheng CHAI ,  Haizu JIN ,  Hui GU ,  Zhijun GUO

IPC: H01M50/536 ,  H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/538

CPC classification number: H01M50/536 ,  H01M10/0431 ,  H01M50/107 ,  H01M50/152 ,  H01M50/538

Abstract: A battery cell includes a housing, an electrode assembly, an end cap, and a current collecting member. The housing is provided with an opening. The electrode assembly is accommodated inside the housing, and the electrode assembly is provided with a first tab at an end facing the opening. The end cap is configured to cover the opening. The current collecting member is electrically connected to the housing and welded to the first tab.

公开(公告)号：US20240250348A1

公开(公告)日：2024-07-25

申请号：US18427675

申请日：2024-01-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haihe XIAO ,  Xiaowen ZHANG ,  Baiqing LI ,  Yaping HUANG ,  Shuangjuan PENG ,  Haizu JIN

IPC: H01M50/107 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/103 ,  H01M50/209 ,  H01M50/213 ,  H01M50/30 ,  H01M50/51 ,  H01M50/548

CPC classification number: H01M50/107 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/103 ,  H01M50/209 ,  H01M50/213 ,  H01M50/30 ,  H01M50/51 ,  H01M50/548

Abstract: This application discloses a battery cell and a battery pack. The battery cell includes a housing and a bare cell located in an inner cavity of the housing. The bare cell includes at least two opposite extension ends and a middle region located between the two opposite extension ends of the bare cell. The two opposite extension ends of the bare cell are configured to be lower than the middle region of the bare cell in a height direction. The bare cell of this cell forms a structure that is high in the middle and low at edges, and a liquid level height of an electrolyte solution in the housing is below the middle region of the bare cell and above extension ends.

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：US20240222782A1

公开(公告)日：2024-07-04

申请号：US18604484

申请日：2024-03-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO ,  Haizu JIN

IPC: H01M50/342 ,  F16K17/16

CPC classification number: H01M50/3425 ,  F16K17/16

Abstract: A pressure relief apparatus used for a battery cell includes a pressure relief body and two pressure relief grooves. The pressure relief body has a first surface and a second surface disposed opposite in its thickness direction. The two pressure relief grooves are disposed opposite in the thickness direction and disposed on the first surface and the second surface separately, a weak portion is formed between the two pressure relief grooves, and the weak portion is configured to rupture when a pressure or temperature inside the battery cell reaches a threshold, so as to release the pressure inside the battery cell.

公开(公告)号：US20240204358A1

公开(公告)日：2024-06-20

申请号：US18589439

申请日：2024-02-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Denghua LIN ,  Xinxiang CHEN ,  Shoujun HUANG ,  Long CHEN ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

IPC: H01M50/502 ,  H01M50/204 ,  H01M50/538 ,  H01M50/548 ,  H01M50/586

CPC classification number: H01M50/502 ,  H01M50/538 ,  H01M50/548 ,  H01M50/586 ,  H01M50/204

Abstract: A battery cell includes a case, a first battery cell, and a second battery cell, the first battery cell being arranged inside the case, the first battery cell including a first main body part, a first electrode lead-out component extending from a first side of the first main body part, and a second electrode lead-out component extending from a second side of the first main body part, the first side and the second side being arranged oppositely, the second battery cell being arranged inside the case, the second battery cell including a second main body part, a third electrode lead-out component extending from a third side of the second main body part, and a fourth electrode lead-out component extending from a fourth side of the second main body part, and the third side and the fourth side being arranged oppositely.

公开(公告)号：US20240162525A1

公开(公告)日：2024-05-16

申请号：US18422038

申请日：2024-01-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jiantao HUANG ,  Xin SUN ,  Huanji LIU ,  Xiao CHEN ,  Haizu JIN

IPC: H01M10/654 ,  H01M50/209 ,  H01M50/48 ,  H01M50/494

CPC classification number: H01M10/654 ,  H01M50/209 ,  H01M50/48 ,  H01M50/494 ,  H01M2220/20

Abstract: An electrode assembly, a secondary battery, a battery pack, and an electrical apparatus. In the electrode assembly, there are several electrode plate portions sequentially arranged in a laminated manner along its own thickness direction. During structural design, the current collector in at least one of the electrode plate portions is configured as a barrier, and by controlling the ratio between the thermal conductivity λ0 of the barrier and the thickness d0 of the barrier to be less than 3×107 W/(K*m2), the heat flux density of the barrier along the thickness direction of the electrode assembly is reduced and the thermal resistance is increased, thus forming an effective thermal barrier in the thickness direction of the electrode assembly.