公开(公告)号：US20240266538A1

公开(公告)日：2024-08-08

申请号：US18635132

申请日：2024-04-15

申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

发明人： Hiroatsu TODORIKI ,  Yumiko SAITO ,  Takahiro KAWAKAMI ,  Kuniharu NOMOTO ,  Mikio YUKAWA

IPC分类号： H01M4/583 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/192 ,  C01B32/23 ,  H01G9/042 ,  H01G11/22 ,  H01G11/32 ,  H01G11/36 ,  H01M4/04 ,  H01M4/133 ,  H01M4/139 ,  H01M4/1393 ,  H01M4/587 ,  H01M4/62 ,  H01M6/16 ,  H01M10/0525 ,  H01M10/0566

CPC分类号： H01M4/5835 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/192 ,  C01B32/23 ,  H01G9/042 ,  H01G11/22 ,  H01G11/32 ,  H01G11/36 ,  H01M4/0438 ,  H01M4/133 ,  H01M4/139 ,  H01M4/1393 ,  H01M4/587 ,  H01M4/62 ,  H01M6/16 ,  H01M10/0566 ,  H01M10/0525 ,  Y02E60/13

摘要： The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.

公开(公告)号：US12049402B2

公开(公告)日：2024-07-30

申请号：US17055744

申请日：2019-04-10

申请人： ArcelorMittal

发明人： Thi Tan Vu ,  Abel Alvarez-Alvarez ,  Roberto Suarez Sanchez

IPC分类号： C01B32/198 ,  C01B32/192 ,  C01B32/23

CPC分类号： C01B32/198 ,  C01B32/192 ,  C01B32/23 ,  C01P2004/61 ,  C01P2006/40

摘要： A method for the manufacture of graphene oxide from electrode graphite scrap including the provision of electrode graphite scrap, the grinding of electrode graphite scrap to obtain ground graphite electrode and an oxidation step of the ground graphite electrode to obtain graphene oxide.

公开(公告)号：US20240217826A1

公开(公告)日：2024-07-04

申请号：US18288848

申请日：2022-05-03

申请人： MASARYKOVA UNIVERZITA

发明人： Mirko CERNÁK ,  Richard KRUMPOLES ,  Frantisek ZELENÁK

IPC分类号： C01B32/192 ,  H05H1/24 ,  H05H1/46

CPC分类号： C01B32/192 ,  H05H1/2441 ,  H05H1/46 ,  C01P2004/03

摘要： The method relates to triggering a self-propagating reduction-exfoliation process of graphene oxide in a porous material containing graphene oxide to increase the total electric conductivity and the specific surface area of the porous material. It's subject matter consists in that the initial electric plasma is generated in the adjacent part and only partly in the inside part (4) of the total volume (2) of the reduced-exfoliated porous material. This triggers the self-propagating reduction-exfoliation process, wherein to generate the initial electric plasma the parameters of the following group are fulfilled: the temperature of the working gas is less than 400° C., the pressure of the working gas is higher than 10 kPa, the speed of the working gas is less than 0,1 mxs−1, the temperature of the total volume of the porous material is less than 200° C.

公开(公告)号：US11821095B2

公开(公告)日：2023-11-21

申请号：US17193916

申请日：2021-03-05

申请人： ExxonMobil Chemical Patents Inc. ,  The Texas A&M University System

发明人： Rohan Ashok Hule ,  Micah J. Green ,  Joshua T. Hope ,  Wanmei Sun

IPC分类号： C25B9/05 ,  C25B1/135 ,  C25B9/17 ,  C25B11/02 ,  C25B11/043 ,  C25B11/046 ,  C25B11/037 ,  C01B32/192

CPC分类号： C25B9/05 ,  C01B32/192 ,  C25B1/135 ,  C25B9/17 ,  C25B11/02 ,  C25B11/037 ,  C25B11/043 ,  C25B11/046

摘要： Processes and systems for electrochemical exfoliation that use a compression reactor and, more particularly, to processes and systems for electrochemical exfoliation of planar parent materials, such as graphite. A reactor for electrochemical exfoliation may include a container configured to hold an electrolyte solution. The reactor may further include a porous chamber, wherein the porous chamber is configured to hold a parent material in fluid communication with the electrolyte solution. The reactor may further include a pressure source positioned to apply a pressure along a length of the porous chamber to thereby compress the parent material in the porous chamber. The reactor may further include a first counter electrode. The reactor may further include a working electrode. The reactor may further include an electrical power source in electrical communication with the first counter electrode and the working electrode.

公开(公告)号：US20180305214A1

公开(公告)日：2018-10-25

申请号：US15749749

申请日：2016-07-26

申请人： Centre National de la Recherche Scientifique

发明人： Philippe POULIN ,  Suchithra PADMAJAN SASIKALA ,  Cyril AYMONIER

IPC分类号： C01B32/194 ,  C01B32/192 ,  C01B32/23

CPC分类号： C01B32/194 ,  B82Y30/00 ,  C01B32/192 ,  C01B32/23 ,  C08K3/042 ,  C08L29/04 ,  C08L71/02 ,  Y02P20/544

摘要： Some embodiments are directed to a method and device for reducing a component composed of at least one graphene oxide and a matrix consisting of at least one polymer, characterized in that the method includes at least the following steps: introducing a mixture of polymer(s) and graphene oxide GO into a reactor subject to a value of temperature T and a value of pressure P suitable for placing a fluid under supercritical or subcritical conditions for a given period, the temperature T being suitable for not degrading the polymer; and cooling the reactor and removing the obtained product R consisting of reduced polymer(s) and graphene oxide rGO.

公开(公告)号：US20180135200A1

公开(公告)日：2018-05-17

申请号：US15852861

申请日：2017-12-22

申请人： Nanotek Instruments, Inc.

发明人： Aruna Zhamu ,  Wei Xiong ,  Bor Z. Jang

IPC分类号： C30B1/02 ,  C01B32/182 ,  C01B32/184 ,  C01B32/19 ,  C01B32/192 ,  C01B32/22 ,  C01B32/225 ,  C01B32/23 ,  C30B5/00 ,  C30B29/02 ,  C30B29/68

CPC分类号： C30B1/02 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/182 ,  C01B32/184 ,  C01B32/19 ,  C01B32/192 ,  C01B32/22 ,  C01B32/225 ,  C01B32/23 ,  C01P2006/10 ,  C01P2006/32 ,  C01P2006/40 ,  C01P2006/80 ,  C30B5/00 ,  C30B29/02 ,  C30B29/68 ,  Y10S977/734 ,  Y10S977/842 ,  Y10T428/30

摘要： A unitary graphene layer or graphene single crystal containing closely packed and chemically bonded parallel graphene planes having an inter-graphene plane spacing of 0.335 to 0.40 nm and an oxygen content of 0.01% to 10% by weight, which unitary graphene layer or graphene single crystal is obtained from heat-treating a graphene oxide gel at a temperature higher than 100° C., wherein the average mis-orientation angle between two graphene planes is less than 10 degrees, more typically less than 5 degrees. The molecules in the graphene oxide gel, upon drying and heat-treating, are chemically interconnected and integrated into a unitary graphene entity containing no discrete graphite flake or graphene platelet. This graphene monolith exhibits a combination of exceptional thermal conductivity, electrical conductivity, mechanical strength, surface smoothness, surface hardness, and scratch resistance unmatched by any thin-film material of comparable thickness range.

公开(公告)号：US09932238B2

公开(公告)日：2018-04-03

申请号：US14703258

申请日：2015-05-04

申请人： Peerless Worldwide, LLC

发明人： Richard S. Shankman

IPC分类号： C01B31/00 ,  C01B31/04 ,  B82Y30/00 ,  B82Y40/00 ,  C10M177/00 ,  C10M103/02 ,  A61Q19/00 ,  C10M125/02 ,  C10M125/04 ,  C10M129/70 ,  C22C33/00 ,  C22C38/00 ,  A61K8/02 ,  A61K8/19 ,  B01J13/00 ,  C10M171/06 ,  C01B32/20 ,  C01B32/225 ,  C01B32/23 ,  C01B32/182 ,  C01B32/184 ,  C01B32/186 ,  C01B32/192 ,  A61Q17/04

CPC分类号： C01B32/192 ,  A61K8/0241 ,  A61K8/19 ,  A61K2800/10 ,  A61K2800/28 ,  A61K2800/413 ,  A61Q17/04 ,  A61Q19/00 ,  B01J13/0056 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/182 ,  C01B32/184 ,  C01B32/186 ,  C01B32/20 ,  C01B32/225 ,  C01B32/23 ,  C10M103/02 ,  C10M125/02 ,  C10M125/04 ,  C10M129/70 ,  C10M171/06 ,  C10M177/00 ,  C10M2201/041 ,  C10M2201/0413 ,  C10N2220/082 ,  C10N2230/06 ,  C22C33/00 ,  C22C33/006 ,  C22C38/00 ,  F16D2300/06 ,  F16D2300/10 ,  Y10S977/734 ,  Y10S977/755 ,  Y10S977/843 ,  Y10S977/902

摘要： Methods of ex situ synthesis of graphene, graphene oxide, reduced graphene oxide, other graphene derivative structures and nanoparticles useful as polishing agents are disclosed. Compositions and methods for polishing, hardening, protecting, adding longevity to, and lubricating moving and stationary parts in devices and systems, including, but not limited to, engines, turbos, turbines, tracks, races, wheels, bearings, gear systems, armor, heat shields, and other physical and mechanical systems employing machined interacting hard surfaces through the use of nano-polishing agents formed in situ from lubricating compositions and, in some cases, ex situ and their various uses are also disclosed.

公开(公告)号：US20180029889A1

公开(公告)日：2018-02-01

申请号：US15730751

申请日：2017-10-12

申请人： SHENZHEN CANTONNET ENERGY SERVICES CO. , LTD.

发明人： Linde ZHANG ,  Mingdong ZHANG

IPC分类号： C01B31/02

CPC分类号： C01B32/182 ,  C01B32/184 ,  C01B32/192 ,  C01B32/198 ,  C01B32/20 ,  C01B2204/20

摘要： The invention relates to a preparation method of graphene using graphene oxide. The method consists of the following steps. (1). Preparation of graphene oxide-dispersant solution; (2). Reduction of graphene oxide; (3). Obtaining graphene by suction filtration and drying process. Based on the preparation of anthracite, the invention could reduce production costs effectively comparing to traditional preparation methods of graphene, and make the reaction more fast and complete, facilitating the achievement of large scale industrial production.

公开(公告)号：US09845245B2

公开(公告)日：2017-12-19

申请号：US14665053

申请日：2015-03-23

申请人： Massachusetts Institute of Technology

发明人： Daniel Alcazar Jorba ,  Edwin Lorimer Thomas

IPC分类号： B01F3/22 ,  B01F3/20 ,  B01F3/12 ,  C01B31/04 ,  B82Y30/00 ,  B82Y40/00 ,  B01F17/00 ,  B01F3/04 ,  B01F3/06

CPC分类号： C01B32/182 ,  B01F17/0042 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/184 ,  C01B32/192 ,  C01B32/194 ,  C01B32/23

摘要： Method for making a liquid foam from graphene. The method includes preparing an aqueous dispersion of graphene oxide and adding a water miscible compound to the aqueous dispersion to produce a mixture including a modified form of graphene oxide. A second immiscible fluid (a gas or a liquid) with or without a surfactant are added to the mixture and agitated to form a fluid/water composite wherein the modified form of graphene oxide aggregates at the interfaces between the fluid and water to form either a closed or open cell foam. The modified form of graphene oxide is the foaming agent.

公开(公告)号：US20170318672A1

公开(公告)日：2017-11-02

申请号：US15459973

申请日：2017-03-15

申请人： The Trustees of Princeton University

发明人： Robert K. PRUD'HOMME ,  Ilhan A. Aksay

IPC分类号： H05K1/09 ,  H05K3/10 ,  B82Y40/00 ,  H05K3/00 ,  H01G4/20 ,  B82Y30/00

CPC分类号： H05K1/095 ,  B82Y30/00 ,  B82Y40/00 ,  C01B31/0423 ,  C01B31/043 ,  C01B31/0476 ,  C01B32/192 ,  C01B32/225 ,  C01B32/23 ,  C01B2204/32 ,  H01G4/206 ,  H05K3/0091 ,  H05K3/10 ,  H05K2201/0323 ,  Y02E60/324 ,  Y02E60/325 ,  Y02E60/328 ,  Y10T428/13 ,  Y10T428/1341 ,  Y10T428/1379 ,  Y10T428/2982

摘要： A thermal overload device containing a polymer composite, which contains at least one polymer and a modified graphite oxide material, containing thermally exfoliated graphite oxide having a surface area of from about 300 m2/g to 2600 m2/g, and a method of making the same.