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81. 发明授权

US08501307B2 Recompressed exfoliated graphite articles 有权
公开(公告)号：US08501307B2
公开(公告)日：2013-08-06
申请号：US11899009
申请日：2007-09-04
申请人： Aruna Zhamu , Jinjun Shi , Jiusheng Guo , Bor Z. Jang
发明人： Aruna Zhamu , Jinjun Shi , Jiusheng Guo , Bor Z. Jang
IPC分类号： B32B9/00 , H01B1/04 , H01B1/06
CPC分类号： H01B1/04
摘要： This invention provides an electrically conductive, less anisotropic, recompressed exfoliated graphite article comprising a mixture of (a) expanded or exfoliated graphite flakes; and (b) particles of non-expandable graphite or carbon, wherein the non-expandable graphite or carbon particles are in the amount of between about 3% and about 70% by weight based on the total weight of the particles and the expanded graphite flakes combined; wherein the mixture is compressed to form the article having an apparent bulk density of from about 0.1 g/cm3 to about 2.0 g/cm3. The article exhibits a thickness-direction conductivity typically greater than 50 S/cm, more typically greater than 100 S/cm, and most typically greater than 200 S/cm. The article, when used in a thin foil or sheet form, can be a useful component in a sheet molding compound plate used as a fuel cell separator or flow field plate. The article may also be used as a current collector for a battery, supercapacitor, or any other electrochemical cell.

82. 发明申请

US20130190956A1 Surface-mediated cell-powered vehicles and methods of operating same 有权
标题翻译：表面介导的细胞动力车辆和操作方法
公开(公告)号：US20130190956A1
公开(公告)日：2013-07-25
申请号：US13374894
申请日：2012-01-23
申请人： Aruna Zhamu , Guorong Chen , Xiqing Wang , Bor Z. Jang , Yanbo Wang , Qing Fang
发明人： Aruna Zhamu , Guorong Chen , Xiqing Wang , Bor Z. Jang , Yanbo Wang , Qing Fang
IPC分类号： B60L11/18 , B62D61/06 , B62D61/02 , B64D27/02 , B60W20/00 , B61C7/04 , B63H21/17 , B62M6/40 , G06F19/00
CPC分类号： B61C7/04 , B60L11/1811 , B60L2200/26 , B60W20/00 , B62M6/90 , B63H21/17 , B64D2041/005 , Y02T10/7011 , Y02T10/7016 , Y02T10/7072 , Y02T30/16 , Y02T30/40 , Y02T90/127 , Y02T90/14 , Y02T90/36
摘要： This invention provides a vehicle powered by a surface-mediated cell (SMC)-based power source, comprising a vehicle frame, at least a wheel supporting the frame or a propeller connected to the frame, a drive unit connected to the wheel or propeller, and a power source electrically connected to the drive unit, wherein the power source contains at least a surface-mediated cell. The vehicle can be a micro-EV (using the SMC for the stop-start function), HEV, plug-in HEV, all-electric vehicle, power-assisted bicycle, scooter, motorcycle, tricycle, automobile, wheelchair, fork lift, golf cart, specialty vehicle, bus, truck, train, rapid-transit vehicle, boat, or air vehicle. The ultra-high power density enables the SMC to provide pulsed power or increased current demands when the vehicle is accelerating or hill-climbing. The SMC also enables the power source to recuperate the braking energy when the vehicle decelerates, brakes, or simply moves down-hill.
摘要翻译：本发明提供了一种由基于表面介质单元（SMC）的电源供电的车辆，其包括车架，至少一个支撑框架的轮子或连接到该框架的螺旋桨，连接到车轮或螺旋桨的驱动单元，以及电连接到所述驱动单元的电源，其中所述电源至少包含表面介导的单元。车辆可以是微型EV（使用SMC进行停止启动功能），HEV，插电式HEV，全电动车，动力辅助自行车，踏板车，摩托车，三轮车，汽车，轮椅，叉车，高尔夫球车，特种车辆，公共汽车，卡车，火车，快速运输车辆，船只或机动车辆。超高功率密度使SMC能够在车辆加速或爬坡时提供脉冲功率或增加电流需求。当车辆减速，制动或简单地向下移动时，SMC还使电源能够恢复制动能量。

83. 发明申请

US20130005917A1 Process for producing chemically functionalized nano graphene materials 有权
公开(公告)号：US20130005917A1
公开(公告)日：2013-01-03
申请号：US13573260
申请日：2012-09-06
申请人： Aruna Zhamu , Bor Z. Jang
发明人： Aruna Zhamu , Bor Z. Jang
IPC分类号： C07D203/26 , C08F8/30 , C08L67/04 , B01J19/10 , C07D487/04 , B82Y40/00
CPC分类号： C01B31/0469 , B01J19/10 , B82Y30/00 , B82Y40/00 , C01B32/19 , C01B32/194 , C01B32/225
摘要： Provided in this invention is a process for producing chemically functionalized nano graphene materials, known as nano graphene platelets (NGPs), graphene nano sheets, or graphene nano ribbons. Subsequently, a polymer can be grafted to a functional group of the resulting functionalized graphene. In one preferred embodiment, the process comprises a step of mixing a starting nano graphene material having edges and two primary graphene surfaces, an azide or bi-radical compound, and an organic solvent in a reactor, and allowing a chemical reaction between the nano graphene material and the azide compound to proceed at a temperature for a length of time sufficient to produce the functionalized nano graphene material.

84. 发明授权

US08216541B2 Process for producing dispersible and conductive nano graphene platelets from non-oxidized graphitic materials 有权
标题翻译：从非氧化石墨材料制备分散和导电的纳米石墨烯片晶的方法
公开(公告)号：US08216541B2
公开(公告)日：2012-07-10
申请号：US12231411
申请日：2008-09-03
申请人： Bor Z. Jang , Aruna Zhamu
发明人： Bor Z. Jang , Aruna Zhamu
IPC分类号： C01B31/00
CPC分类号： B82Y40/00 , B82Y30/00 , C01B32/15 , Y10S977/755 , Y10S977/775
摘要： The present invention provides a process for producing nano graphene platelets (NGPs) that are both dispersible and electrically conducting. The process comprises: (a) preparing a pristine NGP material from a graphitic material; and (b) subjecting the pristine NGP material to an oxidation treatment to obtain the dispersible NGP material, wherein the NGP material has an oxygen content no greater than 25% by weight. Conductive NGPs can find applications in transparent electrodes for solar cells or flat panel displays, additives for battery and supercapacitor electrodes, conductive nanocomposite for electromagnetic wave interference (EMI) shielding and static charge dissipation, etc.
摘要翻译：本发明提供了可分散和导电的纳米石墨烯片晶（NGP）的制备方法。该方法包括：（a）从石墨材料制备原始的NGP材料; 和（b）对原始NGP材料进行氧化处理以获得可分散的NGP材料，其中NGP材料的氧含量不大于25重量％。导电NGP可用于太阳能电池或平板显示器的透明电极，电池和超级电容器电极的添加剂，电磁波干扰（EMI）屏蔽和静电荷耗散的导电纳米复合材料等。

85. 发明申请

US20120045688A1 Lithium super-battery with a functionalized nano graphene cathode 有权
标题翻译：具有功能化纳米石墨烯阴极的锂超级电池
公开(公告)号：US20120045688A1
公开(公告)日：2012-02-23
申请号：US12806679
申请日：2010-08-19
申请人： Chenguang Liu , Aruna Zhamu , David Neff , Bor Z. Jang
发明人： Chenguang Liu , Aruna Zhamu , David Neff , Bor Z. Jang
IPC分类号： H01M10/052 , H01M10/0563
CPC分类号： H01M4/587 , H01G11/06 , H01G11/38 , H01G11/50 , H01M10/0525 , Y02E60/122 , Y02E60/13 , Y02T10/7011 , Y02T10/7022
摘要： An electrochemical energy storage device, lithium super-battery, comprising a positive electrode, a negative electrode, a porous separator disposed between the two electrodes, and a lithium-containing electrolyte in physical contact with the two electrodes, wherein the positive electrode comprises a plurality of chemically functionalized nano graphene platelets (f-NGP) or exfoliated graphite having a functional group that reversibly reacts with a lithium atom or ion. In a preferred embodiment, a lithium super-battery having a f-NGP positive electrode and Li4Ti5O12 negative electrode exhibits a gravimetric energy ˜5 times higher than conventional supercapacitors and a power density ˜10 times higher than conventional lithium-ion batteries. This device has the best properties of both the lithium ion battery and the supercapacitor.
摘要翻译：一种锂电池，包括正极，负极，设置在两个电极之间的多孔隔板的锂电池，以及与两个电极物理接触的含锂电解质，其中正电极包括多个的化学官能化纳米石墨烯片（f-NGP）或具有与锂原子或离子可逆反应的官能团的剥离石墨。在一个优选实施例中，具有f-NGP正极和Li 4 Ti 5 O 12负极的锂超级电池表现出比传统超级电容器高约5倍的重量能量，并且功率密度比常规锂离子电池高约10倍。该器件具有锂离子电池和超级电容器的最佳性能。

86. 发明申请

US20110190435A1 METHOD OF PRODUCING NANO-SCALED GRAPHENE AND INORGANIC PLATELETS AND THEIR NANOCOMPOSITES 有权
标题翻译：生产纳米尺度石墨和无机薄板及其纳米复合材料的方法
公开(公告)号：US20110190435A1
公开(公告)日：2011-08-04
申请号：US12983947
申请日：2011-01-04
申请人： Bor Z. Jang , Aruna Zhamu
发明人： Bor Z. Jang , Aruna Zhamu
IPC分类号： C08K3/20 , C09K3/00 , B82Y30/00
CPC分类号： B82Y40/00 , B82Y30/00 , C01B32/15 , C01B32/22 , C01B32/225 , C01B32/23 , C01B33/40 , C01B2204/04 , C01P2004/24 , C09C1/44 , C09C1/46
摘要： Disclosed is a method of exfoliating a layered material (e.g., graphite and graphite oxide) to produce nano-scaled platelets having a thickness smaller than 100 nm, typically smaller than 10 nm, and often between 0.34 nm and 1.02 nm. The method comprises: (a) subjecting the layered material in a powder form to a halogen vapor at a first temperature above the melting point or sublimation point of the halogen at a sufficient vapor pressure and for a duration of time sufficient to cause the halogen molecules to penetrate an interlayer space of the layered material, forming a stable halogen-intercalated compound; and (b) heating the halogen-intercalated compound at a second temperature above the boiling point of the halogen, allowing halogen atoms or molecules residing in the interlayer space to exfoliate the layered material to produce the platelets. Alternatively, rather than heating, step (a) is followed by a step of dispersing the halogen-intercalated compound in a liquid medium which is subjected to ultrasonication for exfoliating the halogen-intercalated compound to produce the platelets, which are dispersed in the liquid medium. The halogen can be readily captured and re-used, thereby significantly reducing the impact of halogen to the environment. The method can further include a step of dispersing the platelets in a polymer or monomer solution or suspension as a precursor step to nanocomposite fabrication.
摘要翻译：公开了一种剥离层状材料（例如石墨和氧化石墨）以产生厚度小于100nm，通常小于10nm，通常在0.34nm和1.02nm之间的纳米级片晶的方法。该方法包括：（a）在高于卤素的熔点或升华点的第一温度下以足够的蒸汽压将粉末形式的层状材料经受卤素蒸气，持续足以引起卤素分子穿透层状材料的层间空间，形成稳定的卤素插层化合物; 和（b）在高于卤素沸点的第二温度下加热卤素插层的化合物，使得驻留在层间空间中的卤素原子或分子剥离层状材料以产生血小板。或者，步骤（a）不是加热，而是将卤素插入化合物分散在液体介质中的步骤，该液体介质经过超声波处理以使卤素插层化合物剥离以产生分散在液体介质中的血小板。可以容易地捕获和重新使用卤素，从而显着降低卤素对环境的影响。该方法还可以包括将血小板分散在聚合物或单体溶液或悬浮液中作为前体步骤的纳米复合制备的步骤。

87. 发明申请

US20110165321A1 Continuous process for producing spacer-modified nano Graphene electrodes for supercapacitors 有权
标题翻译：用于制造用于超级电容器的间隔改性纳米石墨烯电极的连续工艺
公开(公告)号：US20110165321A1
公开(公告)日：2011-07-07
申请号：US12655744
申请日：2010-01-07
申请人： Aruna Zhamu , Zenning Yu , Chen-guang Liu , Bor Z. Jang
发明人： Aruna Zhamu , Zenning Yu , Chen-guang Liu , Bor Z. Jang
IPC分类号： B05D5/12
CPC分类号： H01G9/058 , B82Y30/00 , B82Y40/00 , C01B32/194 , C01B2204/04 , C01B2204/32 , H01G11/36 , H01G11/46 , Y02E60/13
摘要： A specific embodiment of the present invention is a process for continuously producing a porous solid film of spacer-modified nano graphene platelets for supercapacitor electrode applications. This process comprises: (a) dissolving a precursor material in a solvent to form a precursor solution and dispersing multiple nano graphene platelets into the solution to form a suspension; (b) continuously delivering and forming the suspension into a layer of solid film composed of precursor material-coated graphene platelets overlapping one another, and removing the solvent from the solid film (e.g., analogous to a paper-making, mat-making, or web-making procedure); (c) continuously converting the precursor material into nodules bonded to surfaces of graphene platelets to form a porous solid film composed of spacer-modified graphene platelets; and (d) continuously collecting the porous solid film on a collector (e.g., a winding roller). The roll of porous solid film (mat, paper, or web) can then be cut into pieces for used as supercapacitor electrodes.
摘要翻译：本发明的具体实施方案是连续制备用于超级电容器电极应用的间隔物改性的纳米石墨烯片晶的多孔固体膜的方法。该方法包括：（a）将前体材料溶解在溶剂中以形成前体溶液并将多个纳米石墨烯片晶分散到溶液中以形成悬浮液; （b）将悬浮液连续输送并形成为由彼此重叠的前体材料涂覆的石墨烯片晶组成的固体膜层，以及从固体膜中除去溶剂（例如，类似于造纸，制毡或网络制作程序）; （c）将前体材料连续转化为结合到石墨烯片晶表面的结节，以形成由间隔改性石墨烯片晶组成的多孔固体膜; 和（d）在收集器（例如卷绕辊）上连续收集多孔固体膜。然后可以将多孔固体膜（垫，纸或网）卷切成片以用作超级电容器电极。

88. 发明授权

US07892514B2 Method of producing nano-scaled graphene and inorganic platelets and their nanocomposites 有权
标题翻译：生产纳米级石墨烯和无机血小板及其纳米复合材料的方法
公开(公告)号：US07892514B2
公开(公告)日：2011-02-22
申请号：US11709274
申请日：2007-02-22
申请人： Bor Z. Jang , Aruna Zhamu
发明人： Bor Z. Jang , Aruna Zhamu
IPC分类号： C01B31/00
CPC分类号： B82Y40/00 , B82Y30/00 , C01B32/15 , C01B32/22 , C01B32/225 , C01B32/23 , C01B33/40 , C01B2204/04 , C01P2004/24 , C09C1/44 , C09C1/46
摘要： Disclosed is a method of exfoliating a layered material (e.g., graphite and graphite oxide) to produce nano-scaled platelets having a thickness smaller than 100 nm, typically smaller than 10 nm, and often between 0.34 nm and 1.02 nm. The method comprises: (a) subjecting the layered material in a powder form to a halogen vapor at a first temperature above the melting point or sublimation point of the halogen at a sufficient vapor pressure and for a duration of time sufficient to cause the halogen molecules to penetrate an interlayer space of the layered material, forming a stable halogen-intercalated compound; and (b) heating the halogen-intercalated compound at a second temperature above the boiling point of the halogen, allowing halogen atoms or molecules residing in the interlayer space to exfoliate the layered material to produce the platelets. Alternatively, rather than heating, step (a) is followed by a step of dispersing the halogen-intercalated compound in a liquid medium which is subjected to ultrasonication for exfoliating the halogen-intercalated compound to produce the platelets, which are dispersed in the liquid medium. The halogen can be readily captured and re-used, thereby significantly reducing the impact of halogen to the environment. The method can further include a step of dispersing the platelets in a polymer or monomer solution or suspension as a precursor step to nanocomposite fabrication.
摘要翻译：公开了一种剥离层状材料（例如石墨和氧化石墨）以产生厚度小于100nm，通常小于10nm，通常在0.34nm和1.02nm之间的纳米级片晶的方法。该方法包括：（a）在高于卤素的熔点或升华点的第一温度下以足够的蒸汽压将粉末形式的层状材料经受卤素蒸气，持续足以引起卤素分子穿透层状材料的层间空间，形成稳定的卤素插层化合物; 和（b）在高于卤素沸点的第二温度下加热卤素插层的化合物，使得驻留在层间空间中的卤素原子或分子剥离层状材料以产生血小板。或者，步骤（a）不是加热，而是将卤素插入化合物分散在液体介质中的步骤，该液体介质经过超声波处理以使卤素插层化合物剥离以产生分散在液体介质中的血小板。可以容易地捕获和重新使用卤素，从而显着降低卤素对环境的影响。该方法还可以包括将血小板分散在聚合物或单体溶液或悬浮液中作为前体步骤的纳米复合制备的步骤。

89. 发明授权

US07785492B1 Mass production of nano-scaled platelets and products 有权
标题翻译：大规模生产纳米级血小板和产品
公开(公告)号：US07785492B1
公开(公告)日：2010-08-31
申请号：US11526489
申请日：2006-09-26
申请人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
发明人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
IPC分类号： C04B14/00 , C04B16/00 , C04B18/00 , C04B20/06 , C01B31/04
CPC分类号： B82Y40/00 , B82Y30/00 , C01B32/19 , C01B32/22 , C01B32/23 , C01B33/40 , C01B2204/02 , C01B2204/04
摘要： Disclosed is a process for exfoliating a layered material to produce nano-scaled platelets having a thickness smaller than 100 nm, typically smaller than 10 nm, and often between 0.34 nm and 1.02 nm. The process comprises: (a) charging a layered material to an intercalation chamber comprising a gaseous environment at a first temperature and a first pressure sufficient to cause gas species to penetrate into the interstitial space between layers of the layered material, forming a gas-intercalated layered material; and (b) operating a discharge valve to rapidly eject the gas-intercalated layered material through a nozzle into an exfoliation zone at a second pressure and a second temperature, allowing gas species residing in the interstitial space to exfoliate the layered material to produce the platelets. The gaseous environment preferably contains only environmentally benign gases that are reactive (e.g., oxygen) or non-reactive (e.g., noble gases) with the layered material. The process can additionally include dispersing the platelets in a matrix material to form a nanocomposite. The process also can include an additional process of re-compressing the nana-scaled platelets into a product such as a flexible graphite sheet.
摘要翻译：公开了一种剥离层状材料以产生厚度小于100nm，通常小于10nm，通常在0.34nm和1.02nm之间的纳米级片晶的方法。该方法包括：（a）在第一温度和足以使气体物质渗入层状材料层之间的间隙空间的第一温度和第一压力下将分层材料装入包含气态环境的嵌入室，形成气体插入分层材料; 和（b）操作排出阀，以便在第二压力和第二温度下通过喷嘴将气体插入的层状材料快速喷射到剥离区域中，允许驻留在间隙空间中的气体物质剥离层状材料以产生血小板。气态环境优选地仅含有与层状材料具有反应性（例如氧）或非反应性（例如惰性气体）的环境友好气体。该方法还可以包括将血小板分散在基质材料中以形成纳米复合材料。该方法还可以包括将纳米级血小板重新压缩到诸如柔性石墨片的产品中的另外的过程。

90. 发明授权

US07758783B2 Continious production of exfoliated graphite composite compositions and flow field plates 有权
标题翻译：不断生产剥离石墨复合材料组合物和流场板
公开(公告)号：US07758783B2
公开(公告)日：2010-07-20
申请号：US11901227
申请日：2007-09-17
申请人： Jinjun Shi , Aruna Zhamu , Bor Z. Jang
发明人： Jinjun Shi , Aruna Zhamu , Bor Z. Jang
IPC分类号： B29C43/26
CPC分类号： B29C43/222 , B22F2998/00 , B29C43/00 , B29C43/34 , B29C2043/023 , B29C2043/3455 , B29C2043/463 , B29K2105/251 , B29K2303/04 , B29K2503/04 , B29L2031/3468 , C04B35/532 , C04B35/536 , C22C47/14 , H01M4/663 , H01M8/0213 , Y02P70/56 , B22F5/009 , B22F3/18 , B22F3/15 , B22F3/04
摘要： A process of continuously producing a more isotropic, electrically conductive composite composition is provided. The process comprises: (a) continuously supplying a compressible mixture comprising exfoliated graphite worms and a binder or matrix material, wherein the binder or matrix material is in an amount of between 3% and 60% by weight based on the total weight of the mixture; (b) continuously compressing the compressible mixture at a pressure within the range of from about 5 psi or 0.035 MPa to about 50,000 psi or 350 MPa in at least a first direction into a cohered graphite composite compact; and (c) continuously compressing the composite compact in a second direction, different from the first direction, to form the composite composition in a sheet or plate form. The process leads to composite plates with exceptionally high thickness-direction electrical conductivity.
摘要翻译：提供连续生产更多各向同性的导电复合组合物的方法。该方法包括：（a）连续地供应包含脱落的石墨蠕虫和粘合剂或基质材料的可压缩混合物，其中基于混合物的总重量，粘合剂或基质材料的量为3重量％至60重量％ ; （b）在约5psi或0.035MPa至约50,000psi或350MPa的压力下在至少第一方向上将压缩混合物连续地压缩成粘结石墨复合材料; 和（c）在不同于第一方向的第二方向上连续压缩复合压块，以形成片状或板状的复合组合物。该过程导致具有非常高的厚度方向电导率的复合板。

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