公开(公告)号：US11827520B2

公开(公告)日：2023-11-28

申请号：US16333547

申请日：2017-09-19

申请人： University of Houston System

发明人： Jiming Bao ,  Feng Lin ,  Zhuan Zhu ,  Zhiming Wang

IPC分类号： B32B9/00 ,  C01B32/194 ,  C01B32/21 ,  H01G11/36 ,  H10N50/00 ,  H10N50/85 ,  B82Y30/00

CPC分类号： C01B32/194 ,  C01B32/21 ,  H01G11/36 ,  H10N50/00 ,  H10N50/85 ,  B82Y30/00 ,  Y10T428/30

摘要： Discussed herein are methods of orienting one-dimensional and two-dimensional materials via the application of stationary and rotating magnetic fields. The oriented one-dimensional and two-dimensional materials may exhibit macroscopic properties, and may be employed in various measurement devices as well as thermal and electrical shielding applications or battery devices. A single 1D or 2D material may be suspended in another material such as dionized water, polymer(s), or other materials during the orientation, and the suspension may remain as a liquid or may be solidified or partially solidified to secure the oriented material(s) into place. The 1D and 2D materials that respond to the magnetic orientation may further cause other elements of the suspension to be oriented in a similar manner.

公开(公告)号：US11806983B2

公开(公告)日：2023-11-07

申请号：US16769491

申请日：2019-01-11

申请人： NEOGRAF SOLUTIONS, LLC

发明人： Richard A. Beyerle

IPC分类号： B32B9/00 ,  B32B3/28 ,  B32B9/04 ,  C01B32/205 ,  B32B7/12 ,  B32B38/00 ,  C01B32/21

CPC分类号： B32B9/007 ,  B32B3/28 ,  B32B7/12 ,  B32B9/04 ,  B32B38/0012 ,  C01B32/205 ,  C01B32/21 ,  B32B2307/302 ,  B32B2307/306 ,  B32B2307/51 ,  B32B2307/54 ,  B32B2307/732 ,  C01P2006/32

摘要： A graphite article formed of a creped graphite sheet is provided. The creped graphite sheet has a first major surface and a second major surface oppositely disposed to the first major surface and a plurality of macrofolds, each macrofold having a plurality of associated microfolds, wherein each microfold is smaller than the associated macrofold. The creped graphite article has improved flexibility as compared to a graphite sheet which has not been creped. The creped graphite sheet can be formed of a sheet of flexible natural graphite or a sheet of synthetic graphite.

公开(公告)号：US20230352686A1

公开(公告)日：2023-11-02

申请号：US18207860

申请日：2023-06-09

申请人： MITSUBISHI CHEMICAL CORPORATION

发明人： Shunsuke YAMADA ,  Nobuyuki ISHIWATARI ,  Satoshi AKASAKA ,  Daigo NAGAYAMA ,  Shingo MOROKUMA ,  Koichi NISHIO ,  Iwao SOGA ,  Hideaki TANAKA ,  Takashi KAMEDA ,  Tooru FUSE ,  Hiromitsu IKEDA

IPC分类号： H01M4/587 ,  C01B32/21 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/583

CPC分类号： H01M4/587 ,  C01B32/21 ,  H01M4/583 ,  H01M4/625 ,  H01M10/0525 ,  C01P2004/32 ,  C01P2006/14 ,  C01P2006/16 ,  H01M2004/021

摘要： A method for producing a carbon material may include: granulating a raw carbon material by applying mechanical energy comprising impact, compression, friction, and/or shear force. The granulating may be carried out in the presence of a granulating agent. The granulating agent may be liquid during the granulating of the raw carbon material. Alternatively or in addition, the granulating agent may include no organic solvent, an organic solvent having no flash point, or no organic solvent having a flash point of 5° C. or higher.

公开(公告)号：US11746019B2

公开(公告)日：2023-09-05

申请号：US17928854

申请日：2020-08-11

申请人： Young Woon Jeong

发明人： Young Woon Jeong ,  Jeong Hun Oh

IPC分类号： C01B32/21

CPC分类号： C01B32/21 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/40

摘要： Disclosed is a method for producing rough spherical graphite, whereby rough spherical graphite can be mass-produced at low cost with high efficiency. The method comprises: a) a step for pulverizing natural flake-shaped graphite; b) a step for mixing the pulverized natural graphite of step a) and a liquid pitch including a solvent and pitch; c) a step for removing the entirety or a portion of the solvent from the mixture of step b) for which mixing has been completed; d) a step for producing a rough spherical graphite by rough spheroidizing the mixture of step c) from which the solvent has been removed; e) a step for heat-treating the rough spheroidized graphite of step d); and f) a step for classifying the heat-treated rough spherical graphite of step e).

公开(公告)号：US11710822B2

公开(公告)日：2023-07-25

申请号：US17330400

申请日：2021-05-25

申请人： Contemporary Amperex Technology Co., Limited

发明人： Chengdu Liang ,  Yuzhen Zhao ,  Yan Wen ,  Qisen Huang

IPC分类号： H01M4/36 ,  C01B32/21 ,  H01M4/587 ,  H01M4/60 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC分类号： H01M4/366 ,  C01B32/21 ,  H01M4/587 ,  H01M4/60 ,  H01M4/622 ,  H01M10/0525 ,  C01P2002/74 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2004/027

摘要： The present application discloses a composite graphite material, a secondary battery, an apparatus and a preparation method thereof. The composite graphite material includes a core material and a coating layer coating at least a part of the surface of the core material, the core material including graphite; wherein the absolute value K of zeta potential of the composite graphite material in deionized water with a pH of 7 is at least 20 mV. The use of the composite graphite material provided by the present application can improve the cohesion and bonding force of the negative electrode plate, thereby reducing the cyclic expansion of the secondary battery.

公开(公告)号：US10072196B2

公开(公告)日：2018-09-11

申请号：US15166899

申请日：2016-05-27

申请人： AMOGREENTECH CO., LTD.

发明人： Jae Woo Chung ,  Jung Hyun Kim

IPC分类号： C09K5/14 ,  B82Y30/00 ,  B82Y40/00 ,  H01B1/04 ,  B82B1/00 ,  C01B31/04 ,  H01M4/133 ,  H01M4/587

CPC分类号： C09K5/14 ,  B82B1/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/194 ,  C01B32/21 ,  H01B1/04 ,  H01M4/133 ,  H01M4/587 ,  Y10S977/734 ,  Y10S977/847

摘要： Disclosed is a method of preparing a graphene-graphene fused material, including: forming a plurality of nano graphene-metal composites comprised of nano graphene and a nano metal provided on a surface of the nano graphene for bonding between the nano graphenes; forming a polydopamine layer on outer surfaces of the nano graphene-metal composites; and thermally treating the nano graphene-metal composites to prepare a graphene-graphene fused material in which the nano graphene-metal composites are melted and bonded to each other by the nano metal provided on the nano graphene-metal composites.

公开(公告)号：US20180072575A1

公开(公告)日：2018-03-15

申请号：US15553779

申请日：2016-02-26

申请人： Imerys Graphite & Carbon Switzerland Ltd. ,  ETH ZÜRICH

发明人： Michal GULAS ,  Michael E. SPAHR ,  Vito Roberto GIAMPIETRO ,  Phillipp Rudolf VON ROHR ,  Vanesse WOOD

IPC分类号： C01B32/21 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/587

CPC分类号： C01B32/21 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/85 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  C09C1/56 ,  H01M4/0407 ,  H01M4/366 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  Y02T10/7011

摘要： The present disclosure relates to a novel surface-modified carbonaceous material with nanoparticles attached to the surface of said material. The carbonaceous material is for example natural or synthetic graphite, and the nanoparticles are for example in the form of plasma polymers generated in a plasma reactor. The present disclosure also relates to processes for preparing said carbonaceous material and to applications for the same, such as an active material for negative electrodes in lithium-ion batteries. It was found that the deposition of the nanoparticles on the surface of the carbonaceous material leads to significant improvements in terms of its flowability and increases the apparent and/or tap density of the resulting material.

公开(公告)号：US20180072574A1

公开(公告)日：2018-03-15

申请号：US15563698

申请日：2016-04-22

申请人： STELLA CHEMIFA CORPORATION

发明人： Yoshinori SATO ,  Kazutaka HIRANO ,  Yuki KIKUI

IPC分类号： C01B32/168 ,  C01B32/156 ,  C01B32/18 ,  C01B32/194 ,  C01B32/21 ,  C01B32/28 ,  C01B32/354 ,  B82Y30/00 ,  B82Y40/00

CPC分类号： C01B32/168 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/05 ,  C01B32/156 ,  C01B32/18 ,  C01B32/194 ,  C01B32/21 ,  C01B32/28 ,  C01B32/354 ,  C01B2202/26

摘要： A cross-linked structure of a carbon material is excellent in mechanical strength, such as tensile strength. The carbon materials such as carbon nanotube, graphite, fullerene, and carbon nanocoil, are cross-linked with each other. The carbon materials are cross-linked through a linking group derived from a nucleophilic compound having two or more nucleophilic groups in the molecule.

公开(公告)号：US20180019472A1

公开(公告)日：2018-01-18

申请号：US15545850

申请日：2016-01-26

申请人： SHOWA DENKO K.K.

发明人： Ayaka IKADO ,  Yasuaki WAKIZAKA ,  Takashi TERASHIMA ,  Yoshikuni SATO

IPC分类号： H01M4/587 ,  H01M4/583

CPC分类号： H01M4/587 ,  C01B32/20 ,  C01B32/205 ,  C01B32/21 ,  C01B2204/04 ,  H01M4/5835 ,  H01M10/0525

摘要： A method for manufacturing a graphite powder for a negative electrode material for a lithium-ion secondary battery, which includes a process of pulverizing a graphite precursor, and subjecting a mixture of the pulverized graphite precursor and an alkaline compound to graphitization treatment by heating the mixture at 2,800 to 3,500° C. Also disclosed is a graphite powder obtained by the manufacturing method, a negative electrode for a lithium-ion secondary battery containing the graphite powder and a lithium-ion battery provided with the negative electrode.

公开(公告)号：US09790336B2

公开(公告)日：2017-10-17

申请号：US14610051

申请日：2015-01-30

申请人： Seamus Curran ,  Kang-Shyang Liao ,  Alexander Wang

发明人： Seamus Curran ,  Kang-Shyang Liao ,  Alexander Wang

IPC分类号： C01B31/04 ,  C08J5/00 ,  H01B1/24 ,  C01B31/02 ,  D06M11/74 ,  D06M13/507 ,  D06M13/513 ,  B82Y30/00 ,  C09C1/56

CPC分类号： C08J5/005 ,  B82Y30/00 ,  C01B32/152 ,  C01B32/156 ,  C01B32/168 ,  C01B32/194 ,  C01B32/20 ,  C01B32/21 ,  C01B32/354 ,  C01P2004/13 ,  C08J2379/04 ,  C09C1/56 ,  D06M11/74 ,  D06M13/507 ,  D06M13/513 ,  D06M2400/02 ,  H01B1/24

摘要： A composition and method for fabricating graphitic nanocomposites in solid state matrices is presented. The process for fabricating graphitic nanocomposites in solid state matrices may include selecting one or a mixture of specific graphitic nanomaterials. The graphitic nanomaterial(s) may be functionalizing with a moiety similar to the building blocks of the solid state matrices. The functionalized graphitic nanomaterials are mixed with the building blocks of the solid state matrices. The mixture may be cured, which causes in situ formation of the sol-gel solid state matrices that entraps and/or covalently links with the graphitic nanomaterials during the network growing process. This process allows the nanomaterials to be introduced into the matrices homogeneously without forming large aggregations.