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公开(公告)号：US10199627B2
公开(公告)日：2019-02-05
申请号：US15398457
申请日：2017-01-04
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Jian Guo , Quankun Li , Pinghua Deng , Lingbo Zhu , Qingkui Chi
Abstract: The invention provides a secondary battery which comprises a cap plate and at least one cell. The secondary battery further comprises connecting pieces, each connecting piece is parallel to the cap plate and positioned at an inside of the cap plate in a thickness direction of the cap plate, a longitudinal direction of each connecting piece is parallel to a length direction of the cap plate, a transverse direction of each connecting piece is parallel to a width direction of the cap plate. Each connecting piece has: a tab welding portion for being welded to the corresponding tab of each cell; and an electrode terminal welding portion connected to the tab welding portion along the longitudinal direction of each connecting piece for being welded to the corresponding electrode terminal of the cap plate so as to electrically connect the corresponding electrode terminal and the corresponding tab of each cell.
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公开(公告)号：US20240339706A1
公开(公告)日：2024-10-10
申请号：US18749655
申请日：2024-06-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhisheng Chai , Qingkui Chi
IPC: H01M50/213 , H01M10/625 , H01M10/6555 , H01M10/658 , H01M50/249
CPC classification number: H01M50/213 , H01M10/625 , H01M10/6555 , H01M10/658 , H01M50/249 , H01M2220/20
Abstract: A battery and an electric device are provided. The battery includes: a plurality of battery cells, and each battery cell being cylindrical; and a box body, provided with an accommodation cavity configured for accommodating the plurality of battery cells. The area of the accommodation cavity on a plane perpendicular to the central axis of the battery cell is S, the diameter of a single battery cell is A, satisfying A/S≤25×10−6.
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公开(公告)号：US10074842B2
公开(公告)日：2018-09-11
申请号：US15444201
申请日：2017-02-27
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qingkui Chi , Kaifu Zhong , Lingbo Zhu
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.
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4.发明授权公开(公告)号：US11984608B2
公开(公告)日：2024-05-14
申请号：US17847347
申请日：2022-06-23
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Dongsheng Sun , Kun Fang , Zhisheng Chai , Qingkui Chi , Haizu Jin
IPC: H01M50/147 , H01M50/102 , H01M50/317 , H01M50/533 , H01M50/543
CPC classification number: H01M50/147 , H01M50/102 , H01M50/317 , H01M50/533 , H01M50/543 , H01M2220/20 , H01M2220/30
Abstract: Disclosed is a battery cell, a battery, a power consumption apparatus and a method and an apparatus for producing a battery cell. The battery cell includes: a housing, with a first opening; an electrode assembly, arranged in the housing; an end cover assembly, including an end cover, a pressure relief mechanism and a first insulating member, the end cover covers the first opening, the pressure relief mechanism is arranged on the end cover, the pressure relief mechanism is configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated, the first insulating member is located on a side of the end cover close to the electrode assembly to isolate the electrode assembly and the end cover, and the first insulating member is configured that a projection on the end cover along a thickness direction of the end cover covers the pressure relief mechanism.
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公开(公告)号：US10700314B2
公开(公告)日：2020-06-30
申请号：US16138863
申请日：2018-09-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qingkui Chi , Kaifu Zhong
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 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 connected 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.
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Patent Agency Ranking
公开(公告)号：US10476048B2
公开(公告)日：2019-11-12
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
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.
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公开(公告)号：US20240363889A1
公开(公告)日：2024-10-31
申请号：US18765339
申请日：2024-07-08
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhisheng Chai , Haizu Jin , Qingkui Chi
IPC: H01M10/04 , H01M50/538
CPC classification number: H01M10/0431 , H01M50/538
Abstract: An electrode assembly, a battery cell, a battery, and an electric device are provided. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate. The first electrode plate, the separator, and the second electrode plate are wound in a winding direction to form a wound structure, where at least one of the first electrode plate and the second electrode plate includes: a current collector substrate; an active substance layer, disposed on at least one surface on a side, adjacent to the separator, of the current collector substrate; and a tab set, connected to a side edge of the current collector substrate that extends in the winding direction, where the tab set includes a plurality of tabs spaced apart in the winding direction.
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公开(公告)号：US10763465B2
公开(公告)日：2020-09-01
申请号：US16167418
申请日：2018-10-22
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qingkui Chi , Kaifu Zhong
Abstract: The present application relates to a secondary battery, including a naked battery core and a secondary battery head cover assembly. 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, and the two naked battery core insulation sheets are connected to two long sides of the top connection sheet, respectively. The top connection sheet is located below the head cover. The naked battery core is located below the top connection sheet. The head cover is provided with an explosion-proof valve, the top connection sheet is provided with an explosion-proof valve air hole, and the explosion-proof valve air hole is provided correspondingly below the explosion-proof valve.
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9.发明公开公开(公告)号：US20240222826A1
公开(公告)日：2024-07-04
申请号：US18608743
申请日：2024-03-18
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Hui GU , Linlin Zhu , Guanghao Zhu , Chao Liu , Wenjie Yu , Qingkui Chi , Haizu Jin
IPC: H01M50/636 , H01M10/04 , H01M50/103 , H01M50/538 , H01M50/578
CPC classification number: H01M50/636 , H01M10/0422 , H01M50/103 , H01M50/538 , H01M50/578 , H01M2220/20
Abstract: The present application relates to a battery cell and a manufacturing method and device thereof, a battery, and a power consumption apparatus, belonging to the field of battery manufacturing technologies. The battery cell includes: a shell with a first wall; an electrode assembly; and a first current collecting member, where the first wall has a first surface facing the first current collecting member, the first current collecting member has a second surface facing the first wall, one of the first surface and the second surface is provided with a protrusion and the other abuts against the protrusion to form a gap between the first wall and the first current collecting member; and the first current collecting member is provided with a first hole and a second hole, and the first hole is configured to be in communication with the second hole through the gap.
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10.发明授权公开(公告)号：US11984622B1
公开(公告)日：2024-05-14
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.
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