公开(公告)号：US20230073850A1

公开(公告)日：2023-03-09

申请号：US17983140

申请日：2022-11-08

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

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：US20220242735A1

公开(公告)日：2022-08-04

申请号：US17613755

申请日：2020-05-22

申请人： Monash University

发明人： Meysam Sharifzadeh ,  Mainak Majumder ,  Parama Chakraborty Banerjee ,  Mahdokht Shaibani ,  Dilusha Cooray

IPC分类号： C01B32/192

摘要： A method of reducing graphene oxide (GO), the method comprising the steps of: suspending GO and dissolving an iodide in a liquid medium, whereby the dissolved iodide partially reduces the GO to obtain a liquid composition comprising partially reduced GO (prGO) and dissolved iodide, removing liquid medium from the liquid composition to form a graphitic layer comprising prGO and iodide, and irradiating the graphitic layer with UV radiation to further reduce the prGO and provide for a reduced form of graphene oxide.

公开(公告)号：US20220242734A1

公开(公告)日：2022-08-04

申请号：US17613742

申请日：2020-06-04

申请人： Cabot Corporation

发明人： Limeng Chen ,  John L. Gallagher ,  Yakov E. Kutsovsky ,  Agathagelos Kyrlidis

IPC分类号： C01B32/192 ,  C01B32/194 ,  C08J3/22 ,  C08K3/04

摘要： Methods for the production of densified granules of graphene oxide worm (rGOW) particles. Graphene oxide worms are combined with a liquid to produce densified granules of graphene oxide worms. The granules can be easily processed and can incorporated into polymeric compositions such as elastomers. Also disclosed are masterbatch and composite materials made by combining the granules with a polymer.

公开(公告)号：US11377356B2

公开(公告)日：2022-07-05

申请号：US16622691

申请日：2018-06-14

申请人： Rutgers, The State University of New Jersey

发明人： Huixin He ,  Keerthi Savaram ,  Qingdong Li

IPC分类号： C01B32/192 ,  C01B32/194

摘要： Disclosed are the methods for fabricating holey graphene nanoplatelets using microwave irradiation to treat a dry graphite powder. In particular, the methods can be used to treat graphite intercalation compounds either with or without partial oxidation to obtain holey graphene nanoplatelets with predetermined hole size, hole edge shape, thickness and lateral dimension. The method does not involve any toxic reagents or metal-containing compounds, and without generating toxic byproducts, thus enabling a variety of eco-friendly applications.

公开(公告)号：US20220178003A1

公开(公告)日：2022-06-09

申请号：US17472467

申请日：2021-09-10

申请人： Beijing Feilixin Information Security Technology Co., Ltd.

发明人： Keqing Luo ,  Yongquan Zhu ,  Bo Du ,  Xuquan Zhu

IPC分类号： C22C1/10 ,  C01B32/192 ,  C01B32/194 ,  C22C1/05

摘要： A graphene-reinforced alloy composite material and a preparation method thereof are disclosed. The method includes preparing a porous graphene colloid, smelting a first-part alloy, pouring it into the porous graphene colloid to be formed, subjecting the formed product to a hot extrusion, and pulverizing into a powder I; smelting a second-part alloy into an alloy melt II, adding a high-purity silicon powder therein, mixing by stirring, and atomizing to obtain a powder II; mixing the powder I and the powder II, to obtain a pretreated alloy powder; placing the pretreated alloy powder in a high-purity ark, transferring the high-purity ark to a high-temperature tubular furnace, subjecting the pretreated alloy powder to a redox treatment, and introducing methane and hydrogen to grow graphene, to obtain a coated alloy powder; subjecting the coated alloy powder to a pre-compressing molding and sintering, to obtain the graphene-reinforced alloy composite material.

公开(公告)号：US20210114880A1

公开(公告)日：2021-04-22

申请号：US16654638

申请日：2019-10-16

申请人： Nanotek Instruments, Inc.

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

IPC分类号： C01B32/192 ,  C01B32/198

摘要： 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：US10920334B2

公开(公告)日：2021-02-16

申请号：US16086882

申请日：2017-03-21

申请人： The Trustees of Princeton University

发明人： Ilhan A. Aksay ,  Valerie Alain-Rizzo ,  Michael Bozlar ,  David J. Bozym ,  Daniel M. Dabbs ,  Nicholas Szamreta ,  Cem B. Ustundag

IPC分类号： C25D13/02 ,  B41J2/075 ,  B41J2/095 ,  C25D15/02 ,  C25D13/22 ,  C01B32/194 ,  C01B32/192 ,  C25D7/00

摘要： A method for the electrohydrodynamic deposition of carbonaceous materials utilizing an electrohydrodynamic cell comprising two electrodes comprised of a conductive material, by first combining a solid phase comprising a carbonaceous material and a suspension medium, placing the suspension between the electrodes, applying an electric field in a first direction, varying the intensity of the electric field sufficiently to drive lateral movement, increasing the electrical field to stop the lateral transport and fix the layers in place, then removing the applied field and removing the electrodes. Among the many different possibilities contemplated, the method may advantageously utilize: varying the spacing between the electrodes; removing the buildup from one or both electrodes; placing the electrodes into different suspensions; adjusting the concentration, pH, or temperature of the suspension(s); and varying the direction, intensity or duration of the electric fields.

公开(公告)号：US20210041388A1

公开(公告)日：2021-02-11

申请号：US17075793

申请日：2020-10-21

申请人： Purdue Research Foundation

发明人： David H. Thompson ,  Christopher Benjamin ,  Kyle Wright ,  Scott C. Bolton ,  Seok-Hee Hyun

IPC分类号： G01N27/12 ,  H01J37/20 ,  G01N1/30 ,  C01B32/192 ,  G01N27/414

摘要： Methods of using grids in connection with suitable microscopy techniques, such as for determining the structure of target compounds including proteins, are disclosed. Said grid comprising a coating modified with one or more capture agents and a deactivating agent.

公开(公告)号：US20200350585A1

公开(公告)日：2020-11-05

申请号：US16935771

申请日：2020-07-22

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

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：US10822237B2

公开(公告)日：2020-11-03

申请号：US16306247

申请日：2017-03-14

申请人： Korea Institute Of Geoscience And Mineral Resources

发明人： Hee-Dong Jang ,  Han-Kwon Chang ,  Ji-Hyuk Choi

IPC分类号： C01B32/184 ,  C01B32/192 ,  C01B32/194 ,  C01B32/198 ,  B01J2/04 ,  B82Y30/00 ,  B82Y40/00

摘要： A method for preparing graphene balls, the method including, a) preparing a dispersion which includes, a graphene oxide, a reducing agent ranging from a monosaccharide to a polysaccharide, ammonia water and a dispersion medium; and b) spraying and drying the dispersion. According to the preparation method of the present disclosure, it is possible to prepare uniformly sized and spherical graphene balls. Such graphene can be applied to various fields due to excellent physical and chemical characteristics.