公开(公告)号：US20240018005A1

公开(公告)日：2024-01-18

申请号：US18223381

申请日：2023-07-18

Applicant: Plasma App Ltd.

Inventor： Dmitry YARMOLICH ,  Denis YARMOLICH ,  Ramachandran Vasant KUMAR ,  Rumen TOMOV ,  Hyun-Kyung KIM ,  Teng ZHAO

IPC: C01B32/22 ,  C23C14/06 ,  C23C14/34 ,  H01M4/583 ,  H01M4/66 ,  H01M4/139 ,  C25B11/043

CPC classification number: C01B32/22 ,  C23C14/0605 ,  C23C14/3485 ,  H01M4/583 ,  H01M4/661 ,  H01M4/139 ,  C25B11/043 ,  C01P2006/40 ,  C01P2004/64 ,  C01P2006/12

Abstract: There is described a carbon material comprising sp2 and sp3 hybridised carbon. Also described is a method of making a carbon material the method comprising: exposing a substrate to a flux of at least 1011 carbon ions per cm2 of substrate per 1 ms, a majority of the carbon ions having a kinetic energy of at least 10 eV. Further, electrodes comprising the carbon material are described. The electrodes may operate as an anode in Li ion battery characterised with improved specific capacity and operation life-time.

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.

公开(公告)号：US20190177169A1

公开(公告)日：2019-06-13

申请号：US16309590

申请日：2017-06-13

Applicant: MEGAMATTER, INC.

Inventor： Philip COSTANZO ,  George DUBOIS ,  Roopak MITRA ,  Arlin KRIGEL

IPC: C01B32/22 ,  C08K3/04 ,  C08K3/016 ,  C08J9/00

Abstract: Disclosed herein are directed to compositions containing one or more Graphite Intercalated Compounds (GICs), chemically associated with one or more salts. In some instances, the one or more salts anionic components are capable of modifying the one or more GICs via an oxidation process. In some embodiments, the one or more modified-GIC composition's overall composition has an acid content greater than or equal to the pre-existing acid content of the starting one or more GICs.

公开(公告)号：US11239456B2

公开(公告)日：2022-02-01

申请号：US16663105

申请日：2019-10-24

Applicant: Samsung SDI Co., Ltd.

Inventor： Yumi Song ,  Seonyoung Kwon ,  Kihyun Kim ,  Soohyeon Kim ,  Jinhwa Kim ,  Joongho Moon ,  Jaeho Lee ,  Kwanghwan Cho ,  Soonbong Choi ,  Mingzi Hong

IPC: H01M4/131 ,  H01M4/133 ,  H01M4/36 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0525 ,  H01M4/02 ,  C01B32/22

Abstract: A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode are provided. The composite cathode active material includes a core including a lithium metal oxide and a coating layer on the core, wherein the lithium metal oxide includes two or more transition metals including nickel (Ni), an amount of Ni within one mole of the two or more transition metals included in the lithium metal oxide is about 0.65 mol or greater, the coating layer includes LiF, and a resistance of the composite cathode active material is lower than that of the core.

公开(公告)号：US11075367B2

公开(公告)日：2021-07-27

申请号：US15824829

申请日：2017-11-28

Applicant: Samsung SDI Co., Ltd.

Inventor： Yumi Song ,  Seonyoung Kwon ,  Kihyun Kim ,  Soohyeon Kim ,  Jinhwa Kim ,  Joongho Moon ,  Jaeho Lee ,  Kwanghwan Cho ,  Soonbong Choi ,  Mingzi Hong

IPC: H01M4/131 ,  H01M4/133 ,  H01M4/36 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0525 ,  H01M4/02 ,  C01B32/22

Abstract: A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode are provided. The composite cathode active material includes a core including a lithium metal oxide and a coating layer on the core, wherein the lithium metal oxide includes two or more transition metals including nickel (Ni), an amount of Ni within one mole of the two or more transition metals included in the lithium metal oxide is about 0.65 mol or greater, the coating layer includes LiF, and a resistance of the composite cathode active material is lower than that of the core.

公开(公告)号：US20210113981A1

公开(公告)日：2021-04-22

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

Abstract: Provided is a continuous reactor system for producing graphene or an inorganic 2-D compound, the reactor comprising: (a) a rust 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.

公开(公告)号：US10899624B2

公开(公告)日：2021-01-26

申请号：US15308297

申请日：2015-05-01

Applicant: RMIT UNIVERSITY

Inventor： Michael Czajka ,  Robert Shanks ,  Helmut Hugel

IPC: C01B32/22 ,  C01B32/225 ,  C01B32/192 ,  C01B32/184 ,  C01B32/19 ,  C01B32/182

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.

公开(公告)号：US20180312404A1

公开(公告)日：2018-11-01

申请号：US15766676

申请日：2016-10-07

Applicant: Cambridge Enterprise Limited

Inventor： Panagiotis KARAGIANNIDIS ,  Stephen Anthony HODGE ,  Andrea Carlo FERRARI ,  Felice TORRISI

IPC: C01B32/19 ,  C01B32/22 ,  C09D11/52

CPC classification number: C09D11/52 ,  C01B32/19 ,  C01B32/20

Abstract: A method for producing nanoplates derived from a layered material, includes the steps: (a) mixing particles of said layered material with a carrier liquid to form a dispersion of said particles in said carrier liquid; (b) pressurizing the dispersion to a pressure of at least 10 kpsi; and (c) forcing the dispersion along a microfluidic channel under said pressure, to apply a shear rate of at least 105 s−1 to said particles in the dispersion. Exfoliation of nanoplates from said particles is thereby caused. The nanoplates may be graphene nanoplates, for example. Steps (b) and (c) may be repeated for a number of cycles in order to promote exfoliation. The method may be carried out using a microfluidizer.

公开(公告)号：US20180135200A1

公开(公告)日：2018-05-17

申请号：US15852861

申请日：2017-12-22

Applicant: Nanotek Instruments, Inc.

Inventor： Aruna Zhamu ,  Wei Xiong ,  Bor Z. Jang

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

CPC classification number: 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

Abstract: 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：US20210340381A1

公开(公告)日：2021-11-04

申请号：US17377402

申请日：2021-07-16

Applicant: Taiwan Textile Research Institute

Inventor： Ting-Yu Wu ,  Ting-Yu Chang ,  Hsin-Chun Li ,  Bo-Fan Lin

IPC: C09D1/00 ,  B01J19/18 ,  C01B32/194 ,  C01B32/19 ,  C09D7/20 ,  C01B32/22 ,  C01B32/225

Abstract: A preparation method a graphene dispersion is provided, including the following steps. First, a homogenization process is performed on a graphene powder and a processing solvent to form a graphene paste. Next, a layer-thinning process is performed on the graphene paste to form a graphene dispersion.