公开(公告)号：US10102973B2

公开(公告)日：2018-10-16

申请号：US14121487

申请日：2014-09-12

Applicant: Nanotek Instruments, Inc.

Inventor： Yi-jun Lin ,  Bor Z Jang ,  Shaio-Yen Lee ,  Aruna Zhamu

IPC: H01G4/005 ,  H01G4/228 ,  H01G4/30 ,  H01G4/06 ,  H01G4/008 ,  H01G4/12 ,  C01B31/04 ,  B32B18/00 ,  C04B35/468 ,  C04B35/626 ,  C04B35/634 ,  C04B35/638

Abstract: A ceramic capacitor comprising at least a dielectric ceramic layer and at least a graphene electrode layer deposited on the ceramic layer, wherein the graphene electrode layer has a thickness no less than 2 nm and consists of a graphene material or a graphene composite material containing at least 0.1% by weight of a graphene material dispersed in a matrix material or bonded by a binder material, wherein the graphene material is selected from (a) a plurality of single-layer or multi-layer pristine graphene sheets having less than 0.01% by weight of non-carbon elements, or (b) one or a plurality of a non-pristine graphene material having at least 0.01% by weight of non-carbon elements, wherein the non-pristine graphene is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof.

公开(公告)号：US10005099B2

公开(公告)日：2018-06-26

申请号：US14756006

申请日：2015-07-20

Applicant: Nanotek Instruments, Inc.

Inventor： Yi-jun Lin ,  Shaio-yen Lee ,  Aruna Zhamu ,  Bor Z. Jang

IPC: B05D1/28 ,  B05D1/40 ,  B05D3/00 ,  B05D3/12 ,  C01B32/20 ,  C01B32/23 ,  C01B32/184 ,  B82Y30/00 ,  B82Y40/00

CPC classification number: B05D1/28 ,  B05D1/40 ,  B05D3/007 ,  B05D3/12 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/184 ,  C01B32/20 ,  C01B32/23

Abstract: A process for producing a highly oriented graphene oxide (GO) film, comprising: (a) preparing either a GO dispersion having GO sheets dispersed in a fluid medium or a GO gel having GO molecules dissolved in a fluid medium; (b) dispensing the GO dispersion or gel onto a surface of an application roller rotating in a first direction to form an applicator layer of GO and transferring the applicator layer to a surface of a supporting film driven in a second direction opposite to the first direction to form a wet layer of GO on the supporting film; and (c) removing said fluid medium from the wet layer of GO to form a dried layer of GO having an inter-planar spacing d002 of 0.4 nm to 1.2 nm and an oxygen content no less than 5% by weight. This dried GO layer may be heat-treated to produce a graphitic film.

公开(公告)号：US12264072B2

公开(公告)日：2025-04-01

申请号：US16654638

申请日：2019-10-16

Applicant: Nanotek Instruments, Inc.

Inventor： Yi-jun Lin ,  Hsuan-Wen Lee ,  Aruna Zhamu ,  Bor Z. Jang

IPC: C01B32/192 ,  B82Y40/00 ,  C01B32/198 ,  B82Y30/00 ,  C01B32/196

Abstract: Provided is a process for manufacturing a graphene material, the process comprising (a) injecting a rust stock into a first end of a continuous reactor having a toroidal vortex flow, wherein the first stock comprises graphite and a non-oxidizing liquid (or, alternatively, graphite, an acid, and an optional oxidizer) and the continuous flow reactor is configured to produce the toroidal vortex flow, enabling the formation of a reaction product suspension or slurry at the second end, downstream from the first end, of the continuous reactor; and (b) introducing the reaction product suspension/slurry from the second end back to enter the continuous reactor at or near the first end, allowing the reaction product suspension/slurry to form a toroidal vortex flow and move down to or near the second end to produce a graphene suspension or graphene oxide slurry. The process may further comprise repeating step (b) for at least one time.

公开(公告)号：US11037693B2

公开(公告)日：2021-06-15

申请号：US16389254

申请日：2019-04-19

Applicant: Nanotek Instruments, Inc.

Inventor： Yi-jun Lin ,  Aruna Zhamu ,  Bor Z. Jang

IPC: H01B1/02 ,  H01B1/08 ,  H01B1/04 ,  B82Y30/00 ,  B05D1/00 ,  B05D1/02 ,  B05D1/04 ,  B05D1/18 ,  B05D1/12 ,  C23C4/12 ,  C23C4/04 ,  B05D1/24 ,  B05D5/12 ,  H05K3/12

Abstract: A process for producing a transparent conductive film, comprising (a) providing a graphene oxide gel; (b) dispersing metal nanowires in the graphene oxide gel to form a suspension; (c) dispensing and depositing the suspension onto a substrate; and (d) removing the liquid medium to form the film. The film is composed of metal nanowires and graphene oxide with a metal nanowire-to-graphene oxide weight ratio from 1/99 to 99/1, wherein the metal nanowires contain no surface-borne metal oxide or metal compound and the film exhibits an optical transparence no less than 80% and sheet resistance no higher than 300 ohm/square. This film can be used as a transparent conductive electrode in an electro-optic device, such as a photovoltaic or solar cell, light-emitting diode, photo-detector, touch screen, electro-wetting display, liquid crystal display, plasma display, LED display, a TV screen, a computer screen, or a mobile phone screen.

公开(公告)号：US10919760B2

公开(公告)日：2021-02-16

申请号：US16108233

申请日：2018-08-22

Applicant: Nanotek Instruments, Inc.

Inventor： Yi-jun Lin ,  Aruna Zhamu ,  Bor Z. Jang

IPC: B82Y30/00 ,  H01L23/373

Abstract: A process for producing a nanographene platelet-reinforced composite material having nanographene platelets or sheets (NGPs) as a first reinforcement phase dispersed in a matrix material and the first reinforcement phase occupies a weight fraction of 1-90% based on the total composite weight. Preferably, these NGPs, alone or in combination with a second reinforcement phase, are bonded by an adhesive and constitute a continuous 3-D network of electron- and phonon-conducting paths.

公开(公告)号：US20190300372A1

公开(公告)日：2019-10-03

申请号：US15944274

申请日：2018-04-03

Applicant: Nanotek Instruments, Inc.

Inventor： Yi-jun Lin ,  Aruna Zhamu ,  Bor Z. Jang

IPC: C01B32/194 ,  C25D5/54

Abstract: A process for producing a metal-bonded graphene foam product, comprising: (a) preparing a graphene dispersion having multiple graphene sheets dispersed in a liquid medium, which contains an optional blowing agent having a blowing agent-to-graphene weight ratio from 0/1.0 to 1.0/1.0; (b) dispensing and depositing the graphene dispersion onto a surface of a supporting substrate to form a wet graphene layer; (c) removing the liquid medium from the wet graphene layer; (d) heat-treating the dried layer of graphene at a first heat treatment temperature selected from 80° C. to 3,200° C. at a desired heating rate sufficient to induce volatile gas molecules from the non-carbon elements of graphene sheets or to activate the blowing agent for producing a sheet or roll of solid graphene foam having multiple pores and pore walls containing graphene sheets; and (e) impregnating or infiltrating a metal into the pores to form the metal-bonded graphene foam.

公开(公告)号：US20190283378A1

公开(公告)日：2019-09-19

申请号：US15924971

申请日：2018-03-19

Applicant: Nanotek Instruments, Inc.

Inventor： Yi-jun Lin ,  Shaio-yen Lee ,  Yao-de Jhong ,  Aruna Zhamu ,  Bor Z. Jang

IPC: B32B27/12 ,  B32B9/00 ,  B32B15/08 ,  B32B15/14 ,  C08J7/04 ,  C08K3/04 ,  C08K3/08

Abstract: Provided is an apparatus for manufacturing a surface-metalized polymer article, the apparatus comprising: (a) a graphene deposition chamber that accommodates a graphene dispersion comprising multiple graphene sheets and an optional conducive filler dispersed in a first liquid medium and an optional adhesive resin dissolved in the first liquid medium, wherein the graphene deposition chamber is operated to deposit the graphene sheets and optional conductive filler to a surface of at least a polymer component for forming at least a graphene-coated polymer component; and (b) a metallization chamber that accommodates a plating solution for plating a layer of a desired metal on the at least a graphene-coated polymer component to obtain the surface-metalized polymer article.

公开(公告)号：US20190252088A1

公开(公告)日：2019-08-15

申请号：US16389254

申请日：2019-04-19

Applicant: Nanotek Instruments, Inc.

Inventor： Yi-jun Lin ,  Aruna Zhamu ,  Bor Z. Jang

IPC: H01B1/02 ,  H01B1/04 ,  B05D1/00 ,  B05D1/02 ,  B05D1/04 ,  B05D1/18 ,  H01B1/08

CPC classification number: H01B1/02 ,  B05D1/005 ,  B05D1/02 ,  B05D1/04 ,  B05D1/12 ,  B05D1/18 ,  B05D1/24 ,  B05D5/12 ,  C23C4/04 ,  C23C4/12 ,  H01B1/04 ,  H01B1/08 ,  H05K3/12

Abstract: A process for producing a transparent conductive film, comprising (a) providing a graphene oxide gel; (b) dispersing metal nanowires in the graphene oxide gel to form a suspension; (c) dispensing and depositing the suspension onto a substrate; and (d) removing the liquid medium to form the film. The film is composed of metal nanowires and graphene oxide with a metal nanowire-to-graphene oxide weight ratio from 1/99 to 99/1, wherein the metal nanowires contain no surface-borne metal oxide or metal compound and the film exhibits an optical transparence no less than 80% and sheet resistance no higher than 300 ohm/square. This film can be used as a transparent conductive electrode in an electro-optic device, such as a photovoltaic or solar cell, light-emitting diode, photo-detector, touch screen, electro-wetting display, liquid crystal display, plasma display, LED display, a TV screen, a computer screen, or a mobile phone screen.

公开(公告)号：US11984580B2

公开(公告)日：2024-05-14

申请号：US16403820

申请日：2019-05-06

Applicant: Nanotek Instruments, Inc.

Inventor： Yi-jun Lin ,  Yen-Po Lin ,  Sheng-Yi Lu ,  Bor Z. Jang

IPC: H01M4/134 ,  H01M4/02 ,  H01M4/133 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0565

CPC classification number: H01M4/134 ,  H01M4/133 ,  H01M4/366 ,  H01M4/621 ,  H01M10/0525 ,  H01M10/0565 ,  H01M2004/021 ,  H01M2004/027

Abstract: Provided is an anode particulate for a lithium battery, the particulate comprising a polymer foam material having pores and a single or a plurality of primary particles of an anode active material embedded in or in contact with said polymer foam material, wherein said primary particles of anode active material have a total solid volume Va, and said pores have a total pore volume Vp, and the volume ratio Vp/Va is from 0.1/1.0 to 10/1.

公开(公告)号：US11027252B2

公开(公告)日：2021-06-08

申请号：US16654654

申请日：2019-10-16

Applicant: Nanotek Instruments, Inc.

Inventor： Yi-jun Lin ,  Hsuan-Wen Lee ,  Aruna Zhamu ,  Bor Z. Jang

IPC: B01J8/00 ,  B01J8/08 ,  B01J8/10 ,  C01B32/192 ,  C01B32/198 ,  C01B32/22

Abstract: Provided is a continuous reactor system for producing graphene or an inorganic 2-D compound, the reactor comprising: (a) a first body comprising an outer wall and a second body comprising an inner wall, wherein the inner wall defines a bore and the first body is configured within the bore and a motor is configured to rotate the first and/or second body; (b) a reaction chamber between the outer wall of the first body and the inner wall of the second body; (c) a first inlet and a second inlet disposed at first end of the reactor and in fluid communication with the reaction chamber; (d) a first outlet and a second outlet disposed downstream from the first inlet, the outlets being in fluid communication with the reaction chamber; and (e) a flow return conduit having two inlets/outlets in fluid communication with two ends of the reactor.