Graphite Patents (Class 423/448)
  • Patent number: 11920099
    Abstract: Systems and methods for production for consistently sized and shaped petroleum coke from vacuum residue, one method including supplying processed vacuum residue to an extruder; heating the processed vacuum residue throughout a horizontal profile of the extruder from an inlet to an outlet of the extruder; venting hydrocarbon off-gases from the extruder along the horizontal profile of the extruder from the inlet to the outlet of the extruder; and cutting consistently sized and shaped petroleum coke at the outlet of the extruder.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: March 5, 2024
    Assignee: Saudi Arabian Oil Company
    Inventor: Hasan Ali Al-Hashmy
  • Patent number: 11894548
    Abstract: A negative electrode active material which includes a core including artificial graphite, and a carbon coating layer disposed on the surface of the core, wherein an edge plane of the negative electrode active material has a specific surface area of 1.0 m2/g to 1.9 m2/g, a negative electrode including the same, and a secondary battery including the negative electrode.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: February 6, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hee Won Choi, Jae Wook Lee
  • Patent number: 11878908
    Abstract: A method for enrichment of a mixture of graphene nanoplatelets (GNP) may include providing GNP into a column. The method may also include passing the GNP through an electrostatic field in a drift column to separate thinner GNP from thicker GNP to increase the content of the thinner GNP. The method may further include coupling a feeder to the drift column to accept the GNP and providing electrical charge to the GNP by the drift column with a charging module. The method may still further include generating the electrostatic field with an electrostatic field generator in the drift column to increase the content of GNP with smaller thickness.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: January 23, 2024
    Assignee: G6 MATERIALS CORP.
    Inventors: Oleksandr Savsunenko, Elena Polyakova, Daniel Stolyarov
  • Patent number: 11855273
    Abstract: Described are structural electrode and structural batteries having high energy storage and high strength characteristics and methods of making the structural electrodes and structural batteries. The structural batteries provided can include a liquid electrolyte and carbon fiber-reinforced polymer electrodes comprising metallic tabs. The structural electrodes and structural batteries provided can be molded into a shape of a function component of a device such as ground vehicle or an aerial vehicle.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: December 26, 2023
    Assignee: The MITRE Corporation
    Inventors: Nicholas Hudak, Kurt Eisenbeiser
  • Patent number: 11618681
    Abstract: Methods for the bottom-up growth of graphene nanoribbons are provided. The methods utilize small aromatic molecular seeds to initiate the anisotropic chemical vapor deposition (CVD) growth of graphene nanoribbons having low size polydispersities on the surface of a growth substrate. The aromatic molecular seeds include polycyclic aromatic hydrocarbons (PAHs), functionalized derivatives of PAHs, heterocyclic aromatic molecules, and metal complexes of heterocyclic aromatic molecules.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: April 4, 2023
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Michael Scott Arnold, Austin James Way, Robert Michael Jacobberger
  • Patent number: 11594721
    Abstract: The disclosure relates to a carbon-based electrode material that has been graphitized to hold ions in the electrode of a battery and more particularly include carbide or carbide and nitride surfaces that protect the graphite core. The preferred batteries include metal ion such as lithium ion batteries where the carbon-based electrode is the anode although the carbon-based electrode may also serve in dual ion batteries where both electrodes may comprise the graphitized carbon-based electrodes. The electrodes are more amorphous than conventional graphite electrodes and include a carbide or nitride containing surface treatment.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: February 28, 2023
    Assignee: Phillips 66 Company
    Inventors: Zhenhua Mao, Nan Li, Corey W. Tropf, Dachuan Shi, Christopher J. LaFrancois
  • Patent number: 11572280
    Abstract: A method of producing a graphene suspension, comprising: (a) mixing multiple particles of a graphitic material and multiple particles of a solid carrier material to form a mixture in an impacting chamber of an energy impacting apparatus; (b) operating the energy impacting apparatus with a frequency and an intensity for a length of time sufficient for peeling off graphene sheets from the graphitic material and transferring the graphene sheets to surfaces of the carrier material particles to produce graphene-coated carrier particles inside the impacting chamber; and (c) dispersing the graphene-coated carrier particles in a liquid medium and separating the graphene sheets from the carrier material particles using ultrasonication or mechanical shearing means and removing the carrier material from the liquid medium to produce the graphene suspension. The process is fast (1-4 hours as opposed to 5-120 hours of conventional processes), environmentally benign, cost effective, and highly scalable.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: February 7, 2023
    Assignee: Global Graphene Group, Inc.
    Inventors: Hao-Hsun Chang, Aruna Zhamu, Bor Z. Jang
  • Patent number: 11554959
    Abstract: A process for exfoliating graphene, includes a step of irradiating a first substrate comprising graphene on its surface, with a helium or hydrogen plasma containing ions of energy comprised between 10 and 60 eV. A process for fabricating graphene on the surface of a second substrate, comprising the exfoliating process.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: January 17, 2023
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE GRENOBLES ALPES
    Inventors: Gilles Cunge, Alexandra Davydova, Emilie Despiau-Pujo, Djawhar Ferrah, Olivier Renault
  • Patent number: 11535518
    Abstract: The invention provides a method for the production of graphene-structured products. The method generally comprises contacting at a conversion temperature ranging from about 850° C. to about 1100° C. in an inert atmosphere coal with a molten salt to produce a graphene-structured product. In an alternate embodiment, the method comprises contacting at a conversion temperature ranging from about 850° C. to about 1100° C. in an inert atmosphere coal with a molten salt to produce a graphene-structured product; and, separating a rare earth element from the graphene-structured product.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: December 27, 2022
    Assignee: Energy, United States Department of
    Inventors: Fan Shi, McMahan L. Gray, Christopher Matranga, Tuo Ji
  • Patent number: 11508968
    Abstract: A composition can include a carbon nanofiber, wherein a precursor for the carbon nanofiber includes an alcohol and an aldehyde crosslinked by a primary amine. In certain embodiments, the carbon nanofiber can be biotemplated. Biotemplating enables precise control of morphology at the nanometer scale, while molecular templating allows control of carbon nanotexture and structure at the sub-nanometer scale.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: November 22, 2022
    Assignee: Massachusetts Institute of Technology
    Inventors: Angela Belcher, Jifa Qi, Geran Zhang
  • Patent number: 11476453
    Abstract: A negative electrode active material including artificial graphite secondary particles comprising artificial graphite primary particles having an average particle diameter (D50) of 10 nm to 9 ?m, said artificial graphite secondary particles being formed by granulating said artificial graphite primary particles, wherein a value (V1) obtained by dividing a minimum particle diameter (Dmin) of the secondary particles by the average particle diameter (D50) of the initial particles is 0.50 to 0.8, and a value (V2) obtained by dividing the minimum particle diameter (Dmin) of the secondary particles by an average particle diameter (D50) of the secondary particles is 0.23 to 0.4.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: October 18, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Lilin Piao, Je Young Kim, Ju Ho Chung
  • Patent number: 11453594
    Abstract: A method of producing isolated graphene oxide sheets directly from a graphitic material, comprising: a) mixing multiple particles of a graphitic material, an optional oxidizing liquid, and multiple particles of a solid carrier material to form a mixture in an impacting chamber of an energy impacting apparatus; b) operating the energy impacting apparatus with a frequency and an intensity for a length of time sufficient for peeling off graphene sheets from the graphitic material and transferring the graphene sheets to surfaces of the solid carrier material particles to produce graphene-coated solid carrier particles inside the impacting chamber; and c) sequentially or concurrently oxidizing and separating the graphene sheets from the solid carrier material particle surfaces to produce isolated graphene oxide sheets. The process is fast (1-4 hours as opposed to 5-120 hours of conventional processes), has low or no water usage, environmentally benign, cost effective, and highly scalable.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: September 27, 2022
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 11420873
    Abstract: Provided are graphene nanosheets having a polyaromatic hydrocarbon concentration of less than about 0.7% by weight and a tap density of less than about 0.08 g/cm3, as measured by ASTM B527-15 standard. The graphene nanosheets also have a specific surface area (B.E.T.) greater than about 250 m2/g. Also provided are processes for producing graphene nanosheets as well as for removing polyaromatic hydrocarbons from graphene nanosheets, comprising heating said graphene nanosheets under oxidative atmosphere, at a temperature of at least about 200° C.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: August 23, 2022
    Assignee: RAYMOR INDUSTRIES INC.
    Inventors: Jens Kroeger, Nicholas Larouche, Frédéric Larouche, Matthieu Balmayer
  • Patent number: 11413850
    Abstract: Systems, methods, and devices of the various embodiments provide for the creation of holey graphene meshes (HGMs) and composite articles including HGMs. Various embodiments provide solvent-free methods for creating arrays of holes on holey graphene-based articles formed from dry compression (such as films, discs, pellets), thereby resulting in a HGM. In further embodiments, a HGM can used as part of a composite, such as by: 1) embedding a HGM into another matrix material such as carbon, polymer, metals, metal oxides, etc; and/or (2) the HGM serving as a matrix by filling the holes of the HGM or functionalizing the HGM body with another one or more materials. In various embodiments, HGM can also be made as a composite itself by creating holes on dry-compressed articles pre-embedded with one or more other materials.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: August 16, 2022
    Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASA
    Inventors: Yi Lin, John W. Connell, John W. Hopkins, Brandon Moitoso
  • Patent number: 11393976
    Abstract: An ultrathin, carbon-based memristor with a moiré superlattice potential shows prominent ferroelectric resistance switching. The memristor includes a bilayer material, such as Bernal-stacked bilayer graphene, encapsulated between two layers of a layered material, such as hexagonal boron nitride. At least one of the encapsulating layers is rotationally aligned with the bilayer to create the moiré superlattice potential. The memristor exhibits ultrafast and robust resistance switching between multiple resistance states at high temperatures. The memristor, which may be volatile or nonvolatile, may be suitable for neuromorphic computing.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: July 19, 2022
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Pablo Jarillo-Herrero, Qiong Ma, Nuh Gedik, Suyang Xu, Zhiren Zheng
  • Patent number: 11390529
    Abstract: The present invention provides a method for the manufacture of reduced graphene oxide from Kish graphite.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: July 19, 2022
    Assignee: ArcelorMittal
    Inventors: Thi Tan Vu, Maria Cabanas Corrales, Abel Alvarez-Alvarez
  • Patent number: 11380896
    Abstract: An embodiment is directed to an electrode composition for use in an energy storage device cell. The electrode comprises composite particles, each comprising carbon that is biomass-derived and active material. The active material exhibits partial vapor pressure below around 10?13 torr at around 400 K, and an areal capacity loading of the electrode composition ranges from around 2 mAh/cm2 to around 16 mAh/cm2.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: July 5, 2022
    Assignee: SILA NANOTECHNOLOGIES, INC.
    Inventors: Gleb Yushin, Adam Kajdos
  • Patent number: 11358870
    Abstract: Carbon dioxide can be converted into a higher energy product by contacting carbon dioxide with a polarized monocrystalline magnesium oxide producing at least in part carbon. Further a novel crystalline magnesium oxide carbon composite comprising crystalline magnesium oxide and crystalline carbon having graphene structure which are interwoven is provided.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: June 14, 2022
    Assignee: SHELL USA, INC.
    Inventor: Michael Kandianis
  • Patent number: 11348740
    Abstract: The present disclosure provides supercapacitors that may avoid shortcomings of current energy storage technology. Provided herein are materials and fabrication processes of such supercapacitors. In some embodiments, an electrochemical system comprising a first electrode, a second electrode, wherein at least one of the first electrode and the second electrode comprises a three dimensional porous reduced graphene oxide framework.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: May 31, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Xiangfeng Duan, Yu Huang, Benjamin Papandrea, Xu Xu
  • Patent number: 11322773
    Abstract: Provided is a lithium ion secondary battery that has excellent cycle characteristics and employs a silicon material for a negative electrode. This lithium ion secondary battery is characterized by having a negative electrode comprising a plate-like artificial graphite and a material comprising silicon as a constituent element, wherein at least some of particles of the plate-like artificial graphite are bent and have a crease on a plate face.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: May 3, 2022
    Assignee: NEC CORPORATION
    Inventor: Takeshi Azami
  • Patent number: 11267626
    Abstract: A packaging device includes a first portion and a second portion connected to the first portion by way of a first fold line. The first portion includes a first primary edge opposite the first fold line. First and second secondary edges extend between the first fold line and the first primary edge, and an attachment mechanism is provided adjacent the first primary edge. The second portion includes a second primary edge opposite the first fold line. Third and fourth secondary edges extend between the first fold line and the second primary edge. An arm is defined by two cut lines extending from a section of the second portion closer to the first fold line than the second primary edge, and ending in a tab that extends beyond a distal end of the second primary edge.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: March 8, 2022
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Brian C. Dais, Brian T. Davis, Jose Porchia, Rajarajan Ravichandran, Jennifer Shcherban
  • Patent number: 11254799
    Abstract: The present invention relates to novel nanocomposite materials, methods of making nanocomposites and uses of nanocomposite materials. In particular, the invention relates to composite materials which contain two-dimensional materials (e.g. graphene) in multi-layer form i.e. in a form which has a number of atomic layers. The properties of a composite material containing two-dimensional material is in multi-layer from are shown to be superior to those which contain the two-dimensional material in monolayer form.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: February 22, 2022
    Assignee: The University of Manchester
    Inventors: Ian Kinloch, Robert Young, Lei Gong
  • Patent number: 11177486
    Abstract: A gasket sealing material for a fuel cell comprising: at least 25% dry w/w chemically exfoliated vermiculite; and at least 15% dry w/w plate-like filler; wherein the plate-like filler has an average particle size of less than or equal to 10 ?m. Gaskets, fuel cells, uses of the gasket and sealing material are also defined.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: November 16, 2021
    Assignee: Flexitallic Investments, Inc.
    Inventors: John Hoyes, Stephen Bond
  • Patent number: 11168404
    Abstract: A method of producing isolated graphene sheets from a layered graphite, comprising: (a) forming an alkali metal ion-intercalated graphite compound by an electrochemical intercalation which uses a liquid solution of an alkali metal salt dissolved in an organic solvent as both an electrolyte and an intercalate source, layered graphite material as an anode material, and a metal or graphite as a cathode material, and wherein a current is imposed upon a cathode and an anode at a current density for a duration of time sufficient for effecting the electrochemical intercalation of alkali metal ions into interlayer spacing; and (b) exfoliating and separating hexagonal carbon atomic interlayers (graphene planes) from the alkali metal ion-intercalated graphite compound using ultrasonication, thermal shock exposure, exposure to water solution, mechanical shearing treatment, or a combination thereof to produce isolated graphene sheets.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: November 9, 2021
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 11161744
    Abstract: Methods that expand the properties of laser-induced graphene (LIG) and the resulting LIG having the expanded properties. Methods of fabricating laser-induced graphene from materials, which range from natural, renewable precursors (such as cloth or paper) to high performance polymers (like Kevlar). With multiple lasing, however, highly conductive PEI-based LIG could be obtained using both multiple pass and defocus methods. The resulting laser-induced graphene can be used, inter alia, in electronic devices, as antifouling surfaces, in water treatment technology, in membranes, and in electronics on paper and food Such methods include fabrication of LIG in controlled atmospheres, such that, for example, superhydrophobic and superhydrophilic LIG surfaces can be obtained. Such methods further include fabricating laser-induced graphene by multiple lasing of carbon precursors. Such methods further include direct 3D printing of graphene materials from carbon precursors.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: November 2, 2021
    Assignees: William Marsh Rice University, B.G. Negev Technologies and Applications, Ltd., at Ben-Gurion University
    Inventors: James M. Tour, Yieu Chyan, Christopher John Arnusch, Swatantra Pratap Singh, Yilun Li, Duy X. Luong, Carter Kittrell, Ruquan Ye, Jordan Miller, Ian Kinstlinger, Savannah Cofer
  • Patent number: 11163127
    Abstract: A protective conduit for high power laser applications in light guide cables and provides a protective conduit that surrounds a light guiding fiber for high-power laser applications in light guide cables, wherein the protective conduit includes at least one plastic laser safety layer filled with at least one allotrope of carbon or filled with cork, chipped wood, wood, or wood powder, wood particles.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: November 2, 2021
    Assignee: II-VI Delaware, Inc.
    Inventors: Marko Szuggars, Gunnar Köhler
  • Patent number: 11149346
    Abstract: Provided are methods of directly growing a carbon material. The method may include a first operation and a second operation. The first operation may include adsorbing carbons onto a substrate by supplying the carbons to the substrate. The second operation may include removing unreacted carbon residues from the substrate after suspending the supplying the carbons of the first operation. The two operations may be repeated until a desired graphene is formed on the substrate. The substrate may be maintained at a temperature less than 700° C. In another embodiment, the method may include forming a carbon layer on a substrate, removing carbons that are not directly adsorbed to the substrate on the carbon layer, and repeating the two operations until desired graphene is formed on the substrate. The forming of the carbon layer includes supplying individual carbons onto the substrate by preparing the individual carbons.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: October 19, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Changhyun Kim, Hyeonjin Shin, Kyung-Eun Byun, Keunwook Shin, Changseok Lee, Seunggeol Nam, Sungjoo An, Janghee Lee, Jeonil Lee, Yeonchoo Cho
  • Patent number: 11145888
    Abstract: A lithium secondary battery includes a cathode, an anode and a non-aqueous electrolyte. The anode includes an anode active material which contains a mixture of an artificial graphite and a natural graphite. A sphericity of the natural graphite is 0.96 or more. The lithium secondary battery including the anode has improved life-span and power properties.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: October 12, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Dock Young Yoon, Jee Hee Lee, Sang Jin Kim
  • Patent number: 11142460
    Abstract: The present disclosure provides a method for repairing defect of graphene, including: firstly introducing a composite fluid containing a reactive compound and a supercritical fluid to a reactor where the graphene powder has been placed, and impregnating the graphene powder with the composite fluid to passivate and repair the defect of graphene, wherein the reactive compound includes carbon, hydrogen, nitrogen, silicon or oxygen element; and separating the composite fluid from the graphene powder, simultaneously using molecular sieves to absorb the graphene from the composite fluid. The present disclosure further provides the graphene powder prepared by the method above. With the method of the present disclosure, it effectively reduces the ratio of the defect of the graphene, increases the content of the graphene, and has less-layer graphene with high thermal conductivity and electrical conductivity.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: October 12, 2021
    Assignee: XSENSE TECHNOLOGY CORPORATION
    Inventors: Zhen-Yu Li, Po-Min Tu, Chia-Jung Chen, Yeu-Wen Huang
  • Patent number: 11114666
    Abstract: The present invention provides a modified graphite negative electrode material, preparation method thereof and a secondary battery. The modified graphite negative electrode material includes a graphite and a multilayer graphene. The multilayer graphene are dispersed in the graphite. The multilayer graphene are loaded with a conductive agent by bonding of a binder. The modified graphite negative electrode material can achieve a higher compaction density for the negative electrode, and can effectively improve the lithium precipitation of the negative electrode of the secondary battery while improving the cycle performance of the secondary battery when being applied to the secondary battery.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: September 7, 2021
    Assignee: Ningde Amperex Technology Limited
    Inventors: Hang Cui, Taiqiang Chen, Yuansen Xie
  • Patent number: 11103863
    Abstract: Methods for synthesis of active M-N—C catalysts utilizing thermo-chemical synthesis of chemically defined precursors and materials made thereby.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: August 31, 2021
    Assignee: UNM Rainforest Innovations
    Inventors: Rohan Gokhale, Plamen Atanassov
  • Patent number: 11098175
    Abstract: A method for forming a graphene-reinforced polymer matrix composite is disclosed. The method includes distributing graphite microparticles into a molten thermoplastic polymer phase; and applying a succession of shear strain events to the molten polymer phase so that the molten polymer phase exfoliates the graphite successively with each event until at least 50% of the graphite is exfoliated to form a distribution in the molten polymer phase of single- and multi-layer graphene nanoparticles less than 50 nanometers thick along the c-axis direction.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: August 24, 2021
    Assignee: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Thomas Nosker, Jennifer Lynch, Justin Hendrix, Bernard Kear, Gordon Chiu, Stephen Tse
  • Patent number: 11091844
    Abstract: A method to make free-standing graphene sheets and the free-standing graphene sheets so formed. The method includes the steps of exfoliating partially oxidized graphene from a carbon-containing electrode into an aqueous solution, acidifying the aqueous solution, and separating from the acidified solution partially oxidized graphene sheet. The partially oxidized graphene is then dried to yield free-standing graphene sheet having a carbon-to-oxygen ratio of at least about 8.0.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: August 17, 2021
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Sundaram Gunasekaran, Omer Sadak
  • Patent number: 11040883
    Abstract: Provided is a graphite plate, consisting essentially of: graphite; and pores, wherein said graphite plate has a porosity from 1% to 30%. Further provided is a method for producing a graphite plate, including: applying welding pressure to at least one glass-like carbon material in a state in which said at least one glass-like carbon material is maintained in an inert atmosphere under heating conditions, to produce a graphite plate having a porosity from 1% to 30%.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: June 22, 2021
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hidetoshi Kitaura, Naomi Nishiki, Atsushi Tanaka, Kimiaki Nakaya
  • Patent number: 10976297
    Abstract: A sensitive and selective, in-line method to measure and validate the sulfur content at ppb levels in both the liquid and gas phase of fuel. The method includes etching graphene, for example to form a mesa structure comprising horizontal or vertical lines or an array of multidentate star features; functionalizing the etched graphene and attaching metal oxide nanoparticles to the functionalized graphene to form a device; exposing the device to a fuel in the gas or liquid phase; detecting a change in conductivity when sulfur is present in the fuel; and recovering the device for future use. Also disclosed is the related in-line graphene-based ppb level sulfur detector for fuels.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: April 13, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Evgeniya H. Lock, F. Keith Perkins, Anthony K. Boyd, Rachael L. Myers-Ward, David Kurt Gaskill, Anindya Nath
  • Patent number: 10960383
    Abstract: An emission control device for a vehicle, which includes an open cell carbon foam substrate having a geometric surface area of at least about 5000 m2/m3, wherein the substrate has a catalytic metal.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: March 30, 2021
    Inventor: James R. Cartiglia
  • Patent number: 10946617
    Abstract: Provided is a graphite laminated body having excellent properties such as excellent mechanical properties, excellent heat resistance, and excellent thermal conductivity. In particular, provided is a graphite laminated body comprising a graphite film, a non-thermoplastic polyimide film, and an adhesive layer for bonding the graphite film to the non-thermoplastic polyimide film, the adhesive layer being made of a thermoplastic polyimide or a fluororesin.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: March 16, 2021
    Assignees: DU PONT-TORAY CO., LTD., PANASONIC CORPORATION
    Inventors: Naofumi Yasuda, Noriko Toida, Naomi Nishiki, Kazuhiro Nishikawa
  • Patent number: 10928304
    Abstract: A method for adjusting and controlling a boundary of graphene, comprising: providing an insulating substrate and placing the insulating substrate in a growth chamber; and feeding first reaction gas into the growth chamber, the first reaction gas at least comprising carbon source gas, and controlling a flow rate of the first reaction gas to forming a graphene structure having a first boundary shape on a surface of the insulating substrate through controlling a flow rate of the first reaction gas. The present invention realizes the controllability of the boundary of the graphene by adjusting the ratio of the carbon source gas to catalytic gas in the growth process of graphene on the surface of the substrate; the present invention can enable graphene to sequentially continuously grow by changing growth conditions on the basis of already formed graphene, so as to change the original boundary shape of the graphene.
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: February 23, 2021
    Assignee: SHANGHAI INSTITUTE OF MICROSYSTEM AND INFORMATION TECHNOLOGY, CHINESE ACADEMY OF SCIENCES
    Inventors: Haomin Wang, Lingxiu Chen, Li He, Huishan Wang, Hong Xie, Xiujun Wang, Xiaoming Xie
  • Patent number: 10899624
    Abstract: A process for the preparation of reduced graphene comprising the steps of: providing an expandable graphite intercalated with oxygen containing groups; heating the expandable graphite under conditions sufficient to cause expansion of the expandable graphite and formation of an expanded graphite comprising oxygen containing groups; and contacting the expanded graphite with carbon monoxide to reduce at least a portion of the oxygen containing groups and form a reduced expanded graphite comprising an array of reduced graphene. The process of the invention enables large volumes of high quality graphene to be produced.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: January 26, 2021
    Assignee: RMIT UNIVERSITY
    Inventors: Michael Czajka, Robert Shanks, Helmut Hugel
  • Patent number: 10889500
    Abstract: A method of preparing graphene from coal can include thermally processing raw coal and, after the coal has been at least partially cooled from thermal processing, forming reduced graphene oxide from the coal.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: January 12, 2021
    Assignee: Carbon Holdings Intellectual Properties, LLC
    Inventors: Charles Agee Atkins, Garrett W. Lindemann, Matthew Targett
  • Patent number: 10870579
    Abstract: A graphene preparation method includes steps of: thoroughly mixing flake graphite powder with a intercalating agent through electrically string, then adding a reagent solution into a mixture of the flake graphite powder and the intercalating agent and thoroughly stirring for acting, so as to obtain no more than five layers of graphene; wherein the flake graphite powder, the intercalating agent and the reagent solution form a coexistence state of the three electronic phases; electronic phase resonance is induced among the materials, releasing a large amount of energy in the form of vibration and heat across interfaces between layers of carbon atoms, resulting in exfoliation of graphene. The thorough permeation of the intercalating agent ensures the electronic phase resonance can be induced in most layer interfaces, achieving few layer graphene which is equivalent to 5 layers or less.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: December 22, 2020
    Inventor: Leung Chit Or
  • Patent number: 10850985
    Abstract: A method of forming nanocrystalline graphene by a plasma-enhanced chemical vapor deposition process is provided. The method of forming nanocrystalline graphene includes arranging a protective layer on a substrate and growing nanocrystalline graphene directly on the protective layer by using a plasma of a reaction gas. The reaction gas may include a mixed gas of a carbon source gas, an inert gas, and hydrogen gas.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: December 1, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Alum Jung, Keunwook Shin, Kyung-Eun Byun, Hyeonjin Shin, Hyunseok Lim, Seunggeol Nam, Hyunjae Song, Yeonchoo Cho
  • Patent number: 10843925
    Abstract: Provided are plasma processes for producing graphene nanosheets comprising injecting into a thermal zone of a plasma a carbon-containing substance at a velocity of at least 60 m/s standard temperature and pressure STP to nucleate the graphene nanosheets, and quenching the graphene nanosheets with a quench gas of no more than 1000° C. The injecting of the carbon-containing substance may be carried out using a plurality of jets. The graphene nanosheets may have a Raman G/D ratio greater than or equal to 3 and a 2D/G ratio greater than or equal to 0.8, as measured using an incident laser wavelength of 514 nm. The graphene nanosheets may be produced at a rate of at least 80 g/h. The graphene nanosheets can have a polyaromatic hydrocarbon concentration of less than about 0.7% by weight.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: November 24, 2020
    Assignee: RAYMOR INDUSTRIES INC.
    Inventors: Jens Kroeger, Nicholas Larouche, Frédéric Larouche
  • Patent number: 10836137
    Abstract: Systems, methods, and devices of the various embodiments provide for the creation of holey graphene meshes (HGMs) and composite articles including HGMs. Various embodiments provide solvent-free methods for creating arrays of holes on holey graphene-based articles formed from dry compression (such as films, discs, pellets), thereby resulting in a HGM. In further embodiments, a HGM can used as part of a composite, such as by: 1) embedding a HGM into another matrix material such as carbon, polymer, metals, metal oxides, etc; and/or (2) the HGM serving as a matrix by filling the holes of the HGM or functionalizing the HGM body with another one or more materials. In various embodiments, HGM can also be made as a composite itself by creating holes on dry-compressed articles pre-embedded with one or more other materials.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: November 17, 2020
    Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASA
    Inventors: Yi Lin, John W. Connell, John W. Hopkins, Brandon Moitoso
  • Patent number: 10793440
    Abstract: Provided are plasma processes for producing graphene nanosheets comprising injecting into a thermal zone of a plasma a carbon-containing substance at a velocity of at least 60 m/s standard temperature and pressure STP to nucleate the graphene nanosheets, and quenching the graphene nanosheets with a quench gas of no more than 1000° C. The injecting of the carbon-containing substance may be carried out using a plurality of jets. The graphene nanosheets may have a Raman G/D ratio greater than or equal to 3 and a 2D/G ratio greater than or equal to 0.8, as measured using an incident laser wavelength of 514 nm. The graphene nanosheets may be produced at a rate of at least 80 g/h. The graphene nanosheets can have a polyaromatic hydrocarbon concentration of less than about 0.7% by weight.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 6, 2020
    Assignee: RAYMOR INDUSTRIES INC.
    Inventors: Jens Kroeger, Nicholas Larouche, Frédéric Larouche
  • Patent number: 10773955
    Abstract: In one aspect, a composite material is disclosed herein that includes graphene platelets dispersed in a matrix. In some cases, the graphene platelets are randomly oriented within the matrix. The composite material can provide improved thermal conductivity and may be formed into heat spreaders or other thermal management devices to provide improved cooling to electronic, electrical components and semiconductor devices.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: September 15, 2020
    Assignee: THE BOEING COMPANY
    Inventor: Namsoo P. Kim
  • Patent number: 10770719
    Abstract: A negative electrode active material includes a carbon material including boron and a silicon material including at least one selected from silicon and silicon oxide. The silicon material does not include boron. A peak of a B1s spectrum of the carbon material occurs at a binding energy of 187.0 eV or more and 192.0 eV or less, the B1s spectrum being measured by X-ray photoelectron spectroscopy. The ratio of the area of the peak of the B1s spectrum of the carbon material which occurs at a binding energy of 187.0 eV or more and 192.0 eV or less, the B1s spectrum being measured by X-ray photoelectron spectroscopy, to the total area of peaks of the B1s spectrum which occur at a binding energy of 184.0 eV or more and 196.5 eV or less is 50% or more.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: September 8, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Akira Kano, Junko Matsushita, Nobuhiko Hojo
  • Patent number: 10767062
    Abstract: Making a carbon aerogel involves 3-D printing an ink to make a printed part, removing the solvent from the printed part, and carbonizing the printed part (with the solvent removed) to make the aerogel. The ink is based on a solution of a resorcinol-formaldehyde resin (RF resin), water, and an organic thickener. Advantageously, the RF resin contains an acid catalyst, which tends to produce carbon aerogels with higher surface areas upon activation than those produced from methods involving an ink composition containing a base catalyzed resin.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: September 8, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Swetha Chandrasekaran, Theodore F. Baumann, Marcus A. Worsley
  • Patent number: 10750619
    Abstract: Graphene oxide is used as an insulation barrier layer for metal deposition. After patterning and modification, the chemical characteristics of graphene oxide are induced. It can be used as the catalyst for electroless plating in the metallization process, so that the metal is only deposited on the patterned area. It provides the advantages of improving reliability and yield. The metallization structure includes a substrate, a graphene oxide catalytic layer, and a metal layer. It may be widely applied to the metallization of the fine pitch metal of a semiconductor package as well as the fine pitch wires of a printed circuit board (PCB), touch panels, displays, fine electrodes of solar cells, and so on.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 18, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventor: Ming-Huei Yen
  • Patent number: 10734650
    Abstract: Provided is a carbonaceous material used in a negative electrode of a non-aqueous electrolyte secondary battery that shows favorable charge/discharge capacities and low resistance and having favorable resistance to oxidative degradation. The carbonaceous material has an average interplanar spacing d002 of the (002) plane of 0.36 to 0.42 nm calculated by using the Bragg equation according to a wide-angle X-ray diffraction method, a specific surface area of 20 to 65 m2/g obtained by a nitrogen adsorption BET three-point method, a nitrogen element content of 0.3 mass % or less, an oxygen element content of 2.5 mass % or less, and an average particle diameter of 1 to 4 ?m according to a laser scattering method.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: August 4, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Tomohiro Kawakami, Sayaka Ide, Takafumi Izawa, Taketoshi Okuno, Jun-Sang Cho, Hideharu Iwasaki