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21. 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。

22. 发明授权

US07722981B2 Electro-catalyst composition, fuel cell electrode, and membrane-electrode assembly 有权
标题翻译：电催化剂组合物，燃料电池电极和膜 - 电极组件
公开(公告)号：US07722981B2
公开(公告)日：2010-05-25
申请号：US11518565
申请日：2006-09-11
申请人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
发明人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
IPC分类号： H01M4/00 , H01B1/24
CPC分类号： H01M4/8605 , H01B1/04 , H01B1/122 , H01B1/24 , H01M4/8807 , H01M4/881 , H01M4/8832 , H01M4/8835 , H01M4/8839 , H01M4/8842 , H01M4/886 , H01M2008/1095
摘要： Disclosed are an electro-catalyst composition and a precursor electro-catalyst composition (e.g., ink or suspension) for use in a fuel cell that exhibits improved power output. The electro-catalyst composition comprises: (a) a catalyst un-supported or supported on an electronically conducting carrier (e.g., carbon black particles); and (b) an ion-conducting and electron-conducting coating material in physical contact with the catalyst and/or coated on a surface of the carrier, wherein the coating material has an electronic conductivity no less than 10−4 S/cm (preferably no less than 10−2 S/cm) and an ion conductivity no less than 10−5 S/cm (preferably no less than 10−3 S/cm). Also disclosed are a fuel cell electrode comprising this composition, a membrane-electrode assembly (MEA) comprising this composition, and a fuel cell comprising this composition.
摘要翻译：公开了用于燃料电池中的电催化剂组合物和前体电催化剂组合物（例如油墨或悬浮液），其表现出改进的功率输出。电催化剂组合物包括：（a）未支撑或负载在电子导电载体（例如炭黑颗粒）上的催化剂; 和（b）与所述催化剂物理接触和/或涂覆在所述载体的表面上的离子传导和电子传导涂层材料，其中所述涂层材料具有不小于10 -4 S / cm的电子传导率不小于10-2S / cm），离子电导率不小于10-5S / cm（优选不小于10-3S / cm）。还公开了包含该组合物的燃料电池电极，包含该组合物的膜 - 电极组件（MEA）和包含该组合物的燃料电池。

23. 发明申请

US20090057940A1 Method of producing less anisotropic flexible graphite 审中-公开
标题翻译：少量各向异性柔性石墨的生产方法
公开(公告)号：US20090057940A1
公开(公告)日：2009-03-05
申请号：US11899008
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： B29C67/20
CPC分类号： C04B35/536 , C04B35/522 , C04B35/83 , C04B2235/526 , C04B2235/528 , C04B2235/604 , C04B2235/608 , H01M4/663 , H01M8/0234
摘要： This invention provides a method for recompressing expanded or exfoliated graphite to produce a less anisotropic, flexible graphite foil having a thickness-direction electrical conductivity no less than 15 S/cm. In one preferred embodiment, the method comprises: (a) providing a mixture of expanded or exfoliated graphite flakes and particles of non-expandable graphite or carbon, wherein the non-expandable graphite or carbon particles are in the amount of between about 3% and 70% by weight based on the total weight of the particles and the exfoliated graphite; (b) compressing the mixture in at least a first direction to a pressure within the range of from about 0.04 MPa to about 350 MPa into a first cohered mixture; and (c) compressing this first cohered mixture in a second direction, different from the first direction, to a pressure sufficient to produce said flexible graphite foil having a bulk density within the range of from about 0.1 g/cm2 to about 2.0 g/cm2. All these operations are preferably conducted continuously. The foil 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 foil can be used as a component in a sheet molding compound plate as a fuel cell separator or flow field plate. The foil may also be used as a current collector for a battery, supercapacitor, or any other electrochemical cell.
摘要翻译：本发明提供了一种用于再膨化膨胀或剥离的石墨以产生厚度方向导电率不小于15S / cm的较不均匀的柔性石墨箔的方法。在一个优选实施方案中，该方法包括：（a）提供膨胀或剥落的石墨薄片和不可膨胀石墨或碳颗粒的混合物，其中不可膨胀石墨或碳颗粒的量为约3％至 70重量％，基于颗粒和剥离石墨的总重量; （b）将混合物在至少第一方向压缩至约0.04MPa至约350MPa范围内的压力进入第一粘结混合物; 和（c）在不同于第一方向的第二方向上将该第一粘结混合物压缩至足以产生堆积密度在约0.1g / cm 2至约2.0g / cm 2范围内的柔性石墨箔的压力。所有这些操作优选连续进行。箔呈现通常大于50S / cm，更典型地大于100S / cm，最典型地大于200S / cm的厚度方向导电性。该箔可以用作作为燃料电池隔板或流场板的片状模塑复合板中的组分。箔也可以用作电池，超级电容器或任何其它电化学电池的集电器。

24. 发明申请

US20080279710A1 Method of producing exfoliated graphite composite compositions for fuel cell flow field plates 有权
标题翻译：生产燃料电池流场板用剥离石墨复合材料组合物的方法
公开(公告)号：US20080279710A1
公开(公告)日：2008-11-13
申请号：US11800730
申请日：2007-05-08
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： B22F7/00 , B22F3/02 , B22F3/04
CPC分类号： B22F1/0059 , B22F2998/10 , B22F3/02
摘要： A method of producing an electrically conductive composite composition, which is particularly useful for fuel cell bipolar plate applications. The method comprises: (a) providing a supply of expandable graphite powder; (b) providing a supply of a non-expandable powder component comprising a binder or matrix material; (c) blending the expandable graphite with the non-expandable powder component to form a powder mixture wherein the non-expandable powder component is in the amount of between 3% and 60% by weight based on the total weight of the powder mixture; (d) exposing the powder mixture to a temperature sufficient for exfoliating the expandable graphite to obtain a compressible mixture comprising expanded graphite worms and the non-expandable component; (e) compressing the compressible mixture at a pressure within the range of from about 5 psi to about 50,000 psi in predetermined directions into predetermined forms of cohered graphite composite compact; and (f) treating the so-formed cohered graphite composite to activate the binder or matrix material thereby promoting adhesion within the compact to produce the desired composite composition. Preferably, the non-expandable powder component further comprises an isotropy-promoting agent such as non-expandable graphite particles. Further preferably, step (e) comprises compressing the mixture in at least two directions. The method leads to composite plates with exceptionally high thickness-direction electrical conductivity.
摘要翻译：一种制造导电复合材料组合物的方法，其特别适用于燃料电池双极板应用。该方法包括：（a）提供可膨胀石墨粉的供应; （b）提供包含粘合剂或基质材料的不可膨胀粉末组分的供应; （c）将可膨胀石墨与不可发泡粉末组分混合以形成粉末混合物，其中基于粉末混合物的总重量，不可发泡粉末组分的量为3重量％至60重量％; （d）将粉末混合物暴露于足以剥离可膨胀石墨的温度以获得包含膨胀石墨蠕虫和不可膨胀组分的可压缩混合物; （e）在预定方向上以约5psi至约50,000psi范围内的压力将可压缩混合物压缩成预定形式的粘结石墨复合材料; 和（f）处理如此形成的粘结石墨复合材料以活化粘合剂或基质材料，从而促进压块内的粘合以产生所需的复合组合物。优选地，不可膨胀粉末组分还包含各向同性促进剂，例如不可膨胀石墨颗粒。进一步优选地，步骤（e）包括在至少两个方向压缩混合物。该方法导致具有非常高的厚度方向电导率的复合板。

25. 发明申请

US20080277628A1 Exfoliated graphite composite compositions for fuel cell flow field plates 审中-公开
标题翻译：用于燃料电池流场板的剥离石墨复合材料组合物
公开(公告)号：US20080277628A1
公开(公告)日：2008-11-13
申请号：US11800729
申请日：2007-05-08
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： H01B1/04 , H01B1/06
CPC分类号： H01B1/24 , B29C43/00 , B29C43/265 , B29C43/28 , B29C43/46 , B29C2043/046 , B29C2043/3427 , B29C2043/3455 , B29C2043/463 , B29K2503/04 , B29L2031/3468 , H01M8/0213 , H01M8/0221 , H01M8/0223 , H01M2008/1095
摘要： This invention provides an electrically conductive, less anisotropic, and structurally sound composite composition for fuel cell flow field plate or bipolar plate applications. The composition comprises: (a) expanded or exfoliated graphite; (b) particles of non-expandable graphite or carbon, wherein the particles are between 3% and 60% by weight based on the total weight of the particles and the expanded graphite; and (c) a binder or matrix material to bond the expanded graphite and the particles of non-expanded graphite or carbon for forming a highly conductive composite, wherein the binder or matrix material is between 3% and 60% by weight based on the total composite composition weight. The composite plate exhibits a thickness-direction conductivity typically greater than 35 S/cm, more typically greater than 50 S/cm, most typically greater than 100 S/cm, and a thickness-direction specific areal conductivity greater than 200 S/cm2, more typically greater than 500 S/cm2.
摘要翻译：本发明提供用于燃料电池流场板或双极板应用的导电，较少各向异性和结构上良好的复合组合物。组合物包括：（a）膨胀或剥落的石墨; （b）不可膨胀石墨或碳的颗粒，其中所述颗粒占所述颗粒和所述膨胀石墨的总重量的3重量％至60重量％; 和（c）粘合剂或基质材料以将膨胀石墨和非膨胀石墨或碳颗粒结合以形成高导电性复合材料，其中基于总量的粘合剂或基质材料为3重量％至60重量％复合组成重量。复合板的厚度方向导电率通常大于35S / cm，更典型地大于50S / cm，最通常地大于100S / cm，厚度方向的导电率大于200S / SUP> 2，更典型地大于500S / cm 2。

26. 发明申请

US20080048152A1 Process for producing nano-scaled platelets and nanocompsites 审中-公开
标题翻译：制备纳米级血小板和纳米球蛋白的方法
公开(公告)号：US20080048152A1
公开(公告)日：2008-02-28
申请号：US11509424
申请日：2006-08-25
申请人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
发明人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
IPC分类号： C01B31/04
CPC分类号： B82Y40/00 , B82Y30/00 , C01B32/19 , C01B32/192 , C01B32/22 , C01B32/225 , C01B33/38 , C01B2204/02 , C01B2204/04 , C01B2204/32 , C01P2004/03 , C01P2004/04 , C01P2004/20 , C09C1/46
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) subjecting a layered material to a gaseous environment at a first temperature and first pressure sufficient to cause gas species to penetrate between layers of the layered material, forming a gas-intercalated layered material; and (b) subjecting the gas-intercalated layered material to a second pressure, or a second pressure and a second temperature, allowing gas species to partially or completely escape from the layered material and thereby exfoliating the layered material to produce partially delaminated or totally separated 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 also include dispersing the platelets in a matrix material to form a nanocomposite.
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）在足以使气体物质穿透层状材料的层之间的第一温度和第一压力下对层状材料进行气态环境，形成气体插层的层状材料; 和（b）使气体插层的层状材料经受第二压力或第二压力和第二温度，允许气体物质部分或完全从层状材料中逸出，从而剥离层状材料以产生部分分层或完全分离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物。

27. 发明授权

US08883114B2 Production of ultra-thin nano-scaled graphene platelets from meso-carbon micro-beads 有权
标题翻译：从中碳微珠生产超薄纳米级石墨烯血小板
公开(公告)号：US08883114B2
公开(公告)日：2014-11-11
申请号：US12005015
申请日：2007-12-26
申请人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
发明人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
IPC分类号： C01B31/04 , C09C1/56 , B82Y30/00 , B82Y40/00 , C09C1/44 , C09C1/46
CPC分类号： C01B31/0469 , B82Y30/00 , B82Y40/00 , C01B32/19 , C01B32/22 , C01B2204/04 , C01B2204/32 , C01P2004/03 , C01P2004/32 , C01P2006/12 , C09C1/44 , C09C1/46 , C09C1/565
摘要： A method of producing nano-scaled graphene platelets (NGPs) having an average thickness no greater than 50 nm, typically less than 2 nm, and, in many cases, no greater than 1 nm. The method comprises (a) intercalating a supply of meso-carbon microbeads (MCMBs) to produce intercalated MCMBs; and (b) exfoliating the intercalated MCMBs at a temperature and a pressure for a sufficient period of time to produce the desired NGPs. Optionally, the exfoliated product may be subjected to a mechanical shearing treatment, such as air milling, air jet milling, ball milling, pressurized fluid milling, rotating-blade grinding, or ultrasonicating. The NGPs are excellent reinforcement fillers for a range of matrix materials to produce nanocomposites. Nano-scaled graphene platelets are much lower-cost alternatives to carbon nano-tubes or carbon nano-fibers.
摘要翻译：制备平均厚度不超过50nm，典型地小于2nm，并且在许多情况下不大于1nm的纳米级石墨烯平板（NGP）的方法。该方法包括（a）嵌入一定量的中碳微珠（MCMBs）以产生插层的MCMBs; 和（b）在温度和压力下将嵌入的MCMBs剥离足够的时间以产生所需的NGP。任选地，剥离的产品可以进行机械剪切处理，例如空气研磨，喷气研磨，球磨，加压流体研磨，旋转叶片研磨或超声波处理。 NGP是用于生产纳米复合材料的一系列基质材料的优良增强填料。纳米级石墨烯血小板是碳纳米管或碳纳米纤维成本更低的替代品。

28. 发明授权

US07790285B2 Nano-scaled graphene platelets with a high length-to-width aspect ratio 有权
标题翻译：具有高长宽比长度的纳米级石墨烯血小板
公开(公告)号：US07790285B2
公开(公告)日：2010-09-07
申请号：US12002278
申请日：2007-12-17
申请人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
发明人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
IPC分类号： B32B5/16
CPC分类号： C25B1/00 , B82Y30/00 , B82Y40/00 , C01B32/19 , C01B32/22 , C01B2204/04 , C01P2004/24 , H05K9/009 , Y10S977/734 , Y10S977/762 , Y10S977/773 , Y10T428/265 , Y10T428/2982
摘要： This invention provides a nano-scaled graphene platelet (NGP) having a thickness no greater than 100 nm and a length-to-width ratio no less than 3 (preferably greater than 10). The NGP with a high length-to-width ratio can be prepared by using a method comprising (a) intercalating a carbon fiber or graphite fiber with an intercalate to form an intercalated fiber; (b) exfoliating the intercalated fiber to obtain an exfoliated fiber comprising graphene sheets or flakes; and (c) separating the graphene sheets or flakes to obtain nano-scaled graphene platelets. The invention also provides a nanocomposite material comprising an NGP with a high length-to-width ratio. Such a nanocomposite can become electrically conductive with a small weight fraction of NGPs. Conductive composites are particularly useful for shielding of sensitive electronic equipment against electromagnetic interference (EMI) or radio frequency interference (RFI), and for electrostatic charge dissipation.
摘要翻译：本发明提供具有不大于100nm厚度且长度与宽度之比不小于3（优选大于10）的纳米级石墨烯片（NGP）。具有高长宽比的NGP可以通过使用以下方法制备：（a）将碳纤维或石墨纤维插入插层以形成插层纤维; （b）剥离插层的纤维以获得包含石墨烯片或薄片的剥离纤维; 和（c）分离石墨烯片或薄片以获得纳米级石墨烯血小板。本发明还提供了纳米复合材料，其包括具有高长宽比的NGP。这种纳米复合材料可以用小的重量份数的NGP导电。导电复合材料特别适用于屏蔽电磁干扰（EMI）或射频干扰（RFI）以及静电电荷耗散的敏感电子设备。

29. 发明申请

US20090061191A1 Recompressed exfoliated graphite articles 有权
标题翻译：再压缩剥离石墨制品
公开(公告)号：US20090061191A1
公开(公告)日：2009-03-05
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.
摘要翻译：本发明提供一种导电性较小的各向异性的再压缩剥离石墨制品，其包含（a）膨胀或剥落的石墨薄片的混合物; 和（b）不可膨胀石墨或碳的颗粒，其中基于颗粒和膨胀石墨薄片的总重量，不可膨胀石墨或碳颗粒的量为约3重量％至约70重量％结合其中将该混合物压缩以形成具有约0.1g / cm 3至约2.0g / cm 3的表观松密度的制品。该制品的厚度方向导电率通常大于50S / cm，更典型地大于100S / cm，最典型地大于200S / cm。当以薄箔或片状形式使用时，该制品可以是用作燃料电池隔板或流场板的片状模塑复合板中的有用组件。该物品也可以用作电池，超级电容器或任何其它电化学电池的集电器。

30. 发明申请

US20080248275A1 Nano-scaled graphene plate films and articles 有权
标题翻译：纳米级石墨烯薄膜和制品
公开(公告)号：US20080248275A1
公开(公告)日：2008-10-09
申请号：US11784606
申请日：2007-04-09
申请人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
发明人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
IPC分类号： H01B1/04 , C01B31/00
CPC分类号： C01B31/0423 , B82Y30/00 , B82Y40/00 , C01B32/182 , C01B32/19 , C01B32/194 , C01B32/196 , C01B32/225 , C01B32/23 , C01B2204/04 , C01B2204/22 , C01B2204/24 , C04B35/521 , C04B35/522 , H01B1/04
摘要： Disclosed is a nano-scaled graphene article comprising a non-woven aggregate of nano-scaled graphene platelets wherein each of the platelets comprises a graphene sheet or multiple graphene sheets and the platelets have a thickness no greater than 100 nm (preferably smaller than 10 nm) and platelets contact other platelets to define a plurality of conductive pathways along the article. The article has an exceptional thermal conductivity (typically greater than 500 Wm−1K−1) and excellent electrical conductivity (typically greater than 1,000 S/cm). Thin-film articles of the present invention can be used for thermal management in micro-electronic devices and for current-dissipating on an aircraft skin against lightning strikes.
摘要翻译：公开了一种纳米级石墨烯制品，其包含纳米级石墨烯片晶的无纺聚集体，其中每个血小板包含石墨烯片或多个石墨烯片，并且所述血小板具有不大于100nm（优选小于10nm））和血小板接触其他血小板以限定沿着物品的多个导电途径。该物品具有优异的导热性（通常大于500Wm -1），优异的导电性（通常大于1,000S / cm）。本发明的薄膜制品可用于微电子装置中的热管理，并可用于飞机皮肤上的电流消散，以防雷击。

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