公开(公告)号：US20190123313A1

公开(公告)日：2019-04-25

申请号：US16221959

申请日：2018-12-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jian GUO ,  Quankun LI ,  Pinghua DENG ,  Peng WANG ,  Lingbo ZHU ,  Qingkui CHI

IPC: H01M2/04 ,  H01M10/04 ,  H01M2/02 ,  H01M2/06 ,  H01M2/12 ,  H01M2/26 ,  H01M2/30

CPC classification number: H01M2/0469 ,  H01M2/028 ,  H01M2/06 ,  H01M2/1247 ,  H01M2/263 ,  H01M2/30 ,  H01M10/0431 ,  H01M2220/20

Abstract: The secondary battery of the present invention includes: a top cover, a first electrode terminal, a second electrode terminal, an electrode-tab pad-plate, an electrode assembly, a first electrode-tab and a second electrode-tab; the first and second electrode terminal are arranged on the top cover, the electrode-tab pad-plate is a strip-plate shaped structure, and is located between the top cover and electrode assembly, the first electrode-tab includes a connecting part, a folding part and a welding part, the connecting part is beneath the electrode tab pad plate, the welding part is above the electrode tab pad plate, and the connecting part is connected with the electrode assembly, the welding part is connected with the first electrode terminal, the folding part is connected with the connecting part and welding part bypassing the electrode-tab pad-plate; the second electrode terminal is connected with the electrode assembly through the second electrode-tab.

公开(公告)号：US20170279091A1

公开(公告)日：2017-09-28

申请号：US15349931

申请日：2016-11-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingkui CHI ,  Kaifu Zhong

IPC: H01M2/04 ,  H01M2/12

CPC classification number: H01M2/0482 ,  H01M2/0473 ,  H01M2/06 ,  H01M2/1264 ,  H01M2/36

Abstract: The present application relates to a secondary battery head cover assembly, a secondary battery including the same and an assembling method thereof. The secondary battery head cover assembly includes a head cover and an insulation structure, the insulation structure includes a top connection sheet and two naked battery core insulation sheets, an electrode pole is provided on the head cover, and an electrode pole through hole, through which the electrode pole passes, is provided at a position on the top connection sheet corresponding to the electrode pole, the top connection sheet is located below the head cover and is fixed to the head cover. The secondary battery includes the secondary battery head cover assembly and the naked battery core, the naked battery core is located below the top connection sheet, and the two naked battery core insulation sheets wrap the side and bottom surfaces of the naked battery core.

公开(公告)号：US20240356116A1

公开(公告)日：2024-10-24

申请号：US18762426

申请日：2024-07-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haizu JIN ,  Qingkui CHI ,  Yang ZOU ,  Tao PU

IPC: H01M50/131 ,  H01M10/04 ,  H01M50/186 ,  H01M50/536 ,  H01M50/627

CPC classification number: H01M50/131 ,  H01M10/0404 ,  H01M50/186 ,  H01M50/536 ,  H01M50/627

Abstract: A battery cell includes an electrode assembly, a case, an end cover, a first current collecting member, and a second current collecting member, where the case is provided with a first position-limiting portion protruding from the inner side face; the first current collecting member is used for connecting tabs; the second current collecting member is used for connecting the first current collecting member and the first position-limiting portion; and the first current collecting member includes a first region overlapping with the first position-limiting portion along a thickness direction and a second region not overlapping with the first position-limiting portion, the first region and the second region both being welded to the tabs. The first region can be welded to the tab of an outer ring layer, and the second region can be welded to the tab of an inner ring layer, which enables uniform current conduction to be realized.

公开(公告)号：US20230291040A1

公开(公告)日：2023-09-14

申请号：US18320401

申请日：2023-05-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhisheng CHAI ,  Kun FANG ,  Qingkui CHI ,  Dongsheng SUN ,  Hui GU ,  Zhijun GUO

IPC: H01M50/169 ,  H01M50/533 ,  H01M50/552 ,  H01M50/204 ,  H01M10/0585

CPC classification number: H01M50/169 ,  H01M50/533 ,  H01M50/552 ,  H01M50/204 ,  H01M10/0585 ,  H01M2220/20

Abstract: A battery cell includes a housing, an electrode assembly, an end cover, and a current collecting member. The housing has an opening, the electrode assembly has a tab, the electrode assembly is configured to be accommodated in the housing, the end cover is configured to cover the opening, and the current collecting member is configured to connect the end cover to the tab to implement electrical connection between the end cover and the tab. The current collecting member is welded to the tab to form a first welded portion and a second welded portion, the current collecting member is welded to the end cover to form a third welded portion, the first welded portion is on an inner peripheral side of the third welded portion, and the second welded portion is on an outer peripheral side of the third welded portion.

公开(公告)号：US20240380080A1

公开(公告)日：2024-11-14

申请号：US18784546

申请日：2024-07-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hui GU ,  Chao LIU ,  Wenjie YU ,  Qingkui CHI ,  Haizu JIN

IPC: H01M50/536 ,  H01M50/107

Abstract: Embodiments of the present application provide a battery cell, a battery, an electrical device, and a method and device for manufacturing a battery cell. The battery cell includes a shell, an electrode assembly and a current collecting member. The shell has a wall portion located at one end of the shell in a first direction. The electrode assembly is accommodated in the shell and provided with a tab. The current collecting member is accommodated in the shell, and is configured to be connected to the wall portion and the tab to implement an electrical connection between the wall portion and the tab. A protrusion is provided on a side of the current collecting member facing the wall portion, and the wall portion is provided with a recess configured to accommodate at least a part of the protrusion to position the current collecting member.

公开(公告)号：US20170271641A1

公开(公告)日：2017-09-21

申请号：US15444201

申请日：2017-02-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingkui CHI ,  Kaifu ZHONG ,  Lingbo ZHU

IPC: H01M2/20 ,  H01M2/34

CPC classification number: H01M2/202 ,  H01M2/34 ,  H01M2/348 ,  H01M2200/103

Abstract: The present disclosure provides a secondary battery, which comprises a cap plate, at least two cells and two connecting pieces. The cap plate is provided with two electrode terminals which are opposite in electrical polarity. Each cell has two tabs which are opposite in electrical polarity. Each connecting piece has: an electrode terminal electrical connecting portion for electrically connecting with the corresponding electrode terminal of the cap plate; a plurality of tab electrical connecting portions for electrically connecting with the corresponding tabs of the cells respectively; and a plurality of fusing portions electrically connecting the corresponding tab electrical connecting portion to the electrode terminal electrical connecting portion, a width of each fusing portion is less than a width of the electrode terminal electrical connecting portion. A configuration of the connecting piece is simple, thereby reducing the cumulative heat of the secondary battery and reducing the temperature rise.

公开(公告)号：US20240332538A1

公开(公告)日：2024-10-03

申请号：US18732683

申请日：2024-06-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhisheng CHAI ,  Qingkui CHI ,  Haizu JIN ,  Hui GU

IPC: H01M4/66 ,  H01M4/02

CPC classification number: H01M4/666 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

Abstract: Embodiments of the present application provide a battery cell, a battery, and a power consuming device. The battery cell includes: an anode plate, including an anode current collector and an anode active material layer, wherein the anode current collector includes an anode main body portion and an anode tab led out from the anode main body portion, and the anode active material layer is provided on at least part of a surface of the anode main body portion; and a cathode plate configured to be stacked with the anode plate in a first direction, the cathode plate including a cathode current collector; wherein at least one of the anode current collector and the cathode current collector is provided with a reinforcement layer on a lead-out side of the anode tab.

公开(公告)号：US20240154268A1

公开(公告)日：2024-05-09

申请号：US18412333

申请日：2024-01-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingkui CHI ,  Tao PU ,  Yang ZOU ,  Wenjie YU ,  Zhisheng CHAI ,  Haizu JIN

IPC: H01M50/536 ,  H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/186 ,  H01M50/213 ,  H01M50/474

CPC classification number: H01M50/536 ,  H01M10/0404 ,  H01M10/0431 ,  H01M10/049 ,  H01M50/107 ,  H01M50/152 ,  H01M50/186 ,  H01M50/213 ,  H01M50/474

Abstract: A battery cell includes a shell, an end cover, an electrode assembly, and a current collector component. The shell has an opening, and the inner surface of the shell is provided with a first limit part in a protruding manner. The end cover covers the opening. The electrode assembly and the end cover are respectively located on both sides of the first limit part, and the electrode assembly has a tab on the side facing the end cover. The current collector component includes a body part and a connecting part, and the connecting part is connected to the first limit part. The body part includes a first welding region and a second welding region, the first welding region is located on the periphery of the second welding region, the first welding region and the second welding region are separated by the connection position between the connecting part and the body part.

公开(公告)号：US20240145828A1

公开(公告)日：2024-05-02

申请号：US18408971

申请日：2024-01-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhisheng CHAI ,  Yang ZOU ,  Qingkui CHI

IPC: H01M50/152 ,  H01M10/04 ,  H01M50/107 ,  H01M50/169 ,  H01M50/186

CPC classification number: H01M50/152 ,  H01M10/0404 ,  H01M10/0422 ,  H01M50/107 ,  H01M50/169 ,  H01M50/186 ,  H01M2220/20

Abstract: A battery cell includes a housing, an electrode assembly, and an end cap. The housing includes a sidewall and a bottom wall. The sidewall encloses the bottom wall on all sides. The sidewall and the bottom wall jointly form an accommodation cavity with an opening made at one end. The electrode assembly is disposed in the accommodation cavity. The end cap is configured to cover the opening. The sidewall includes a body portion and an end portion. The body portion is connected to the bottom wall. The end portion is connected to an end of the body portion, the end being away from the bottom wall.

公开(公告)号：US20240120624A1

公开(公告)日：2024-04-11

申请号：US18528326

申请日：2023-12-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongsheng SUN ,  Qingkui CHI ,  Hui GU ,  Zhisheng CHAI ,  Guanghao ZHU

IPC: H01M50/536 ,  H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/538 ,  H01M50/548

CPC classification number: H01M50/536 ,  H01M10/0431 ,  H01M50/107 ,  H01M50/152 ,  H01M50/538 ,  H01M50/548

Abstract: This application provides a battery cell, a battery, and an electrical device, and relates to the technical field of batteries. The battery cell includes an electrode assembly. A plurality of weld portions are disposed on one side of a first electrode plate of the electrode assembly along a width direction. The plurality of weld portions are spaced apart along a length direction of the first electrode plate. The first electrode plate includes a winding start end and a winding termination end. The first electrode plate includes a body section from a first weld portion to a second weld portion. The body section is equally divided into a plurality of subsections, each subsection being L in length. A total length of the weld portions of each subsection is not less than 5%×L, where 200 mm≤L≤1200 mm.