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公开(公告)号：US20230411587A1
公开(公告)日：2023-12-21
申请号：US18234386
申请日：2023-08-16
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhiyang WU , Wang ZHANG , Shisong LI , Chao GUO , Chao YANG
CPC classification number: H01M4/0435 , B05C11/025
Abstract: This application discloses an electrode plate rolling apparatus and an electrode plate rolling method that are configured to roll an electrode plate. The electrode plate includes a coated region and an uncoated region. The electrode plate rolling apparatus includes a roller group, a heating part, and a cooling part. The heating part is configured to heat the electrode plate, and the cooling part is configured to cool the electrode plate. The heating part further includes an extension assembly, and the extension assembly can extend the uncoated region when the heating part heats the electrode plate. The electrode plate passes through the cooling part after passing through the heating part. The heating part and the cooling part are configured to reduce a difference between an extensibility parameter of the uncoated region and an extensibility parameter of the coated region.
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公开(公告)号：US20180138492A1
公开(公告)日：2018-05-17
申请号：US15868968
申请日：2018-01-11
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Wenfa LIN , Yuqian WEN , Chao YANG , Lei ZHANG
IPC: H01M2/36 , H01M2/04 , H01M10/0525
Abstract: A welding assembly for a liquid-injection hole of a secondary battery, including a top cover of a case, a liquid-injection hole, a sealing cover-plate and a stress release structure, wherein the liquid-injection hole is disposed in the top cover and includes a assembling recess and a through-hole arranged sequentially from top to bottom of the top cover, the assembling recess and the through-hole present a stepped transition and the radial dimension of the assembling recess is larger than that of the through-hole. The sealing cover-plate is accommodated in the assembling recess and the stress release structure is provided at one or both sides of the welding portion and capable of releasing stress from the welding portion. The welding assembly provides a stress release structure nearby the welding portion, and when the welding portion is full-strength welded, the stress-release structure can effectively release stress nearby the welding seam.
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公开(公告)号：US20240393047A1
公开(公告)日：2024-11-28
申请号：US18797371
申请日：2024-08-07
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Guozhong YANG , Xiangli SUN , Fengdan LI , Chao YANG , Xiaoping WU
Abstract: A drying apparatus includes: an oven; a conveyor belt, where the conveyor belt passes through the oven, the component to be dried is placed on a side of the conveyor belt, and the conveyor belt is configured to convey the component to be dried; and a blowing mechanism provided on a side of the component to be dried away from the conveyor belt and configured to blow gas onto the component to be dried to make the component to be dried abut against the conveyor belt.
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公开(公告)号：US20240286163A1
公开(公告)日：2024-08-29
申请号：US18651632
申请日：2024-04-30
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Guozhong YANG , Xiangli SUN , Fengdan LI , Xiaoping WU , Chao YANG
CPC classification number: B05C5/0254 , H01M4/0402
Abstract: A coating die configured to apply a slurry onto a base material. The coating die includes a feed inlet, a distributary channel, a first confluence chamber and a discharge outlet. The feed inlet is configured to inject the slurry. The distributary channel is provided inside the coating die. The distributary channel includes a first flow channel and a plurality of second flow channels. The first flow channel communicates the feed inlet with the plurality of second flow channels, and the plurality of second flow channels is provided to be spaced from one another in a first direction. The first confluence chamber is provided inside the coating die and communicated with the plurality of second flow channels to collect the slurry from the plurality of second flow channels.
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公开(公告)号：US20240158196A1
公开(公告)日：2024-05-16
申请号：US18422981
申请日：2024-01-25
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Chao YANG , Yongfu YAN , Xiangli SUN , Fengdan LI , Chaolang CHEN , Kai CUI , Guozhong YANG
IPC: B65H27/00
CPC classification number: B65H27/00 , B65H2404/1121
Abstract: A taper-adjustable roller includes a support shaft, support sheets arranged circumferentially around the support shaft, and a first push member. Circumferential surfaces of the support sheets at sides of the support sheets facing away from the support shaft are assembled to form a roll surface. Each support sheet has a first end and a second end in an axial direction of the support shaft. The support sheets are swingable relative to the support shaft. The first push member is disposed on the support shaft, and is configured to push the first ends of the support sheets in a substantially radial direction, to move the first ends towards the support shaft and move the second ends away from the support shaft, or to move the first ends away from the support shaft and move the second ends towards the support shaft.
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Patent Agency Ranking
公开(公告)号：US20240079549A1
公开(公告)日：2024-03-07
申请号：US18508552
申请日：2023-11-14
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Guozhong YANG , Xiangli SUN , Fengdan LI , Xiong QIN , Minjiang XU , Xu PEI , Xiaoping WU , Chao YANG
CPC classification number: H01M4/0435 , B21D5/16
Abstract: This application relates to a tab flattening device. The tab flattening device includes: a roller configured to convey an electrode plate, a cover, and a flattening portion. The surface of the roller is in contact with the electrode plate in a contact region. The cover surrounds the contact region peripherally and includes a feed-in guide surface oriented toward the contact region. The flattening portion is disposed protrusively on the feed-in guide surface, and located opposite to a tab of the electrode plate. A tab guide surface is formed on the flattening portion. Along a feed-in direction of the electrode plate, the flattening portion is at least partially located upstream of the contact region.
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公开(公告)号：US20210119197A1
公开(公告)日：2021-04-22
申请号：US17137047
申请日：2020-12-29
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhiyang WU , Wang ZHANG , Shisong LI , Chao GUO , Chao YANG
IPC: H01M4/04
Abstract: This application discloses an electrode plate rolling apparatus and an electrode plate rolling method that are configured to roll an electrode plate. The electrode plate includes a coated region and an uncoated region. The electrode plate rolling apparatus includes a roller group, a heating part, and a cooling part. The heating part is configured to heat the electrode plate, and the cooling part is configured to cool the electrode plate. The heating part further includes an extension assembly, and the extension assembly can extend the uncoated region when the heating part heats the electrode plate. The electrode plate passes through the cooling part after passing through the heating part. The heating part and the cooling part are configured to reduce a difference between an extensibility parameter of the uncoated region and an extensibility parameter of the coated region.
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8.发明申请公开(公告)号：US20190044135A1
公开(公告)日：2019-02-07
申请号：US15577290
申请日：2017-08-24
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： RUI DU , Na LIU , Yongchao LIU , Sihui WANG , Zhongling XU , Chao YANG
Abstract: The disclosure provides a modified positive electrode active material, a preparation method thereof, and an electrochemical energy storage device. The modified positive electrode active material comprises positive electrode active material substrate; first oxide layer, coated on the surface of the positive electrode active material substrate and selected from one or more of oxides of element M being selected from the group of one or more of Li, Al, Zr, Mg, Ti, Y, Si, Ca, Cr, Fe, Zn, Nb, Sn, Ba, and Cd; and second oxide layer having a continuous layered structure, coated on the surface of the first oxide layer and selected from one or more of oxides of element M′ being selected from one or more of Li, B, P, As, Pb, V, Mo, and Sn. High temperature storage performance and cycling performance of electrochemical energy storage device are improved by the modified positive electrode active material.
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公开(公告)号：US20240238827A1
公开(公告)日：2024-07-18
申请号：US18621468
申请日：2024-03-29
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Guozhong YANG , Xiangli SUN , Fengdan LI , Longyun LIU , Xiaoping WU , Chao YANG
CPC classification number: B05C5/0254 , H01M4/0404
Abstract: Disclosed is a coating die and a battery electrode plate coating apparatus. The coating die is configured to apply a slurry on a substrate. The coating die includes a die body and a rectifying mechanism. The die body is provided with a discharging outlet. The rectifying mechanism is provided with a feeding inlet and a branching channel, where the feeding inlet is configured for injecting the slurry, the branching channel communicates with the feeding inlet and is provided with multiple branching openings, and the rectifying mechanism is exposed to the outside of the die body and is detachably connected to the die body, so that the multiple branching openings communicate with the discharging outlet.
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公开(公告)号：US20210376371A1
公开(公告)日：2021-12-02
申请号：US17058463
申请日：2020-06-02
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Chengdu LIANG , Yiruo WANG , Chao YANG , Minghao TANG , Xiao WANG , Jiang LIN , Chuangchuang XIANG
IPC: H01M10/04
Abstract: The present application relates to a device for preparing an electrode assembly and a preparation method of the electrode assembly. Wherein the device for preparing the electrode assembly includes: a winding assembly; a plurality of first electrode plate unwinding apparatuses, configured to provide a plurality of first electrode plates for the winding assembly; and at least one second electrode plate unwinding apparatus, configured to provide at least one second electrode plate for the winding assembly, wherein a polarity of the first electrode plate is opposite to a polarity of the second electrode plate; and wherein the winding assembly is configured to wind the plurality of first electrode plates and the at least one second electrode plate, to form an electrode assembly. The present application is used for improving winding efficiency of the electrode assembly.
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