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公开(公告)号:US20050084720A1
公开(公告)日:2005-04-21
申请号:US10688433
申请日:2003-10-17
申请人: Juan Becerra , Frank Kovacs , Xiaoming Ren
发明人: Juan Becerra , Frank Kovacs , Xiaoming Ren
CPC分类号: H01M8/04082 , C10L7/04 , H01M8/04208 , H01M8/1009 , H01M8/1011 , Y02E60/523 , Y10T137/86276
摘要: The present invention provides a gel fuel, which includes a fuel substance held in a polymeric structure. One embodiment of the composition includes neat methanol, to which a thickening substance, such as that sold commercially under the trade name Carbopol®, is added to impart viscosity, as well as stabilizing and suspending properties. In addition to the thickening substance, a further substance can be added to balance the pH of the gel fuel when needed. In accordance with the invention, a fuel cell cartridge is provided that has at least one aspect that is methanol-permeable, and which may include a fuel vapor permeable layer and it may be comprised of one of a number of various alternative materials. Features within the fuel cartridge can be used to increase surface area of the gel fuel, and to maintain the gel fuel in a desired location within the cartridge.
摘要翻译: 本发明提供了一种凝胶燃料,其包括保持在聚合物结构中的燃料物质。 组合物的一个实施方案包括纯甲醇,其中加入增稠物质,例如以商品名Carbopol销售的增稠物质,以赋予粘度以及稳定和悬浮性能。 除了增稠物质之外,可以加入另外的物质以在需要时平衡凝胶燃料的pH。 根据本发明,提供一种燃料电池盒,其至少具有一个方面是甲醇可渗透的,并且其可以包括燃料蒸气可渗透层,并且其可以由许多各种替代材料中的一种构成。 燃料盒内的特征可用于增加凝胶燃料的表面积,并将凝胶燃料保持在药筒内的所需位置。
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公开(公告)号:US20140014403A1
公开(公告)日:2014-01-16
申请号:US13417199
申请日:2012-03-09
申请人: Robert J. Miller , Marsha Grade , Amber Brooks , Trevor Simmons , Frank Kovacs , Kenneth Lenseth , Luis Sanchez , George Allen
发明人: Robert J. Miller , Marsha Grade , Amber Brooks , Trevor Simmons , Frank Kovacs , Kenneth Lenseth , Luis Sanchez , George Allen
IPC分类号: H05K1/18
CPC分类号: H05K1/0281 , H01G11/78 , H01G11/82 , H01G11/84 , H05K1/162 , Y02E60/13 , Y02T10/7022
摘要: An energy storing and dispensing sheeting having addressable energy storing cells is disclosed. A free-forming process of fabricating energy storing sheets is disclosed. An interconnect interface for operatively coupling the energy storing sheeting to an external element is disclosed. A flexible printed circuit board with patterned energy storing layers is disclosed. An adhesive, flexible energy storing sheeting is disclosed. Energy storing sheet that can be mechanically tuned and patterned as a structural building material is disclosed. A networked grid storage embodiment of a structural energy storing sheeting is disclosed. An energy storing sheeting powering computer memory and integrated circuits is disclosed. A puncture tolerant energy storage device is disclosed. An ultracapacitor having a separator, symmetric or asymmetric electrodes, electrolyte and a current collector is disclosed. A battery, supercapacitor and hybrid device is disclosed. Variable RC time constants and voltages within an energy storing sheeting are disclosed.
摘要翻译: 公开了一种具有寻址能量存储单元的储能分配片材。 公开了一种制造储能片材的自由成形工艺。 公开了一种用于将能量存储片材可操作地耦合到外部元件的互连接口。 公开了一种具有图案化能量储存层的柔性印刷电路板。 公开了一种粘合剂,柔性储能片材。 公开了能够被机械调谐和图案化为结构建筑材料的储能片材。 公开了一种结构能量储存薄片的网状网格存储实施例。 公开了一种为计算机存储器和集成电路供电的储能片材。 公开了一种耐穿刺能量储存装置。 公开了一种具有隔板,对称或不对称电极,电解质和集电器的超级电容器。 公开了一种电池,超级电容器和混合器件。 公开了可变RC时间常数和能量存储薄片内的电压。
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公开(公告)号:US20080032182A1
公开(公告)日:2008-02-07
申请号:US11873259
申请日:2007-10-16
申请人: Xiaoming Ren , Frank Kovacs , Kevin Shufon , Shimshon Gottesfeld
发明人: Xiaoming Ren , Frank Kovacs , Kevin Shufon , Shimshon Gottesfeld
IPC分类号: H01M4/86
CPC分类号: H01M8/04186 , H01M8/04171 , H01M8/04291 , H01M8/1011 , H01M8/2475 , Y02E60/523
摘要: Passive water management techniques are provided in an air-breathing direct oxidation fuel cell system. A highly hydrophobic component with sub-micrometer wide pores is laminated to the catalyzed membrane electrolyte on the cathode side. This component blocks liquid water from traveling out of the cathode and instead causes the water to be driven through the polymer membrane electrolyte to the cell anode. The air-breathing direct oxidation fuel cell also includes a layer of cathode backing and additional cathode filter components on an exterior aspect of the cell cathode which lessen the water vapor escape rate from the cell cathode. The combination of the well laminated hydrophobic microporous layer, the thicker backing and the added filter layer, together defines a cathode structure of unique water management capacity, that enables to operate a DMFC with direct, controlled rate supply of neat (100%) methanol, without the need for any external supply or pumping of water. The cell anode is provided with a hydrophilic backing layer. When the water is driven through the polymer membrane electrolyte from the cell cathode to the cell anode chamber, it is available for the anodic reaction, and any excess water is carried out along CO2 ventilation channels to the outside environment.
摘要翻译: 被动水管理技术在空气呼吸直接氧化燃料电池系统中提供。 将具有亚微米宽孔的高疏水性组分层压到阴极侧的催化膜电解质上。 该组分阻止液体水从阴极流出,而是使水通过聚合物膜电解质驱动到电池阳极。 空气呼吸直接氧化燃料电池还包括在电池阴极的外部方面的阴极背衬和附加的阴极过滤器部件的层,其降低了来自电池阴极的水蒸气逸出速率。 良好层压的疏水微孔层,较厚的背衬和增加的过滤层的组合共同限定了独特的水管理能力的阴极结构,能够以直(100%)的甲醇直接控制速率供应来操作DMFC, 而不需要任何外部供应或抽水。 电池阳极设置有亲水背衬层。 当水通过聚合物膜电解质从电池阴极驱动到电池阳极室时,可用于阳极反应,并且任何多余的水都沿着CO 2通气通道进入外部 环境。
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公开(公告)号:US20050170224A1
公开(公告)日:2005-08-04
申请号:US11023666
申请日:2004-12-28
申请人: Xiaoming Ren , Juan Becerra , Robert Hirsch , Shimshon Gottesfeld , Frank Kovacs , Kevin Shufon
发明人: Xiaoming Ren , Juan Becerra , Robert Hirsch , Shimshon Gottesfeld , Frank Kovacs , Kevin Shufon
CPC分类号: H01M8/2455 , H01M8/04171 , H01M8/04186 , H01M8/04291 , H01M8/1011 , H01M8/2475 , Y02E60/523
摘要: A fuel cell system having a methanol vapor delivery component or film is provided. The component includes an evaporation pad. The evaporation pad is disposed within the fuel cell generally parallel to the anode diffusion layer, but with a vapor gap provided between the evaporation pad and the anode diffusion layer. A fuel delivery conduit having at least one injection port is provided through which liquid fuel is delivered from an associated source of highly concentrated fuel into the evaporation pad, at a controlled, adjustable rate. Multiple parallel liquid delivery points can also be provided. In order to ensure uniform delivery of fuel across the across the active area of the anode, one or more dispersion members are placed on the evaporation pad to effectively disperse the fuel laterally around each injection port.
摘要翻译: 提供了具有甲醇蒸汽输送组分或膜的燃料电池系统。 该组件包括蒸发垫。 蒸发垫设置在大致平行于阳极扩散层的燃料电池内,但是在蒸发垫和阳极扩散层之间设置有蒸汽间隙。 提供具有至少一个注入口的燃料输送管道,液体燃料以受控的可调节速率从相关的高浓度燃料源输送到蒸发垫中。 还可以提供多个平行的液体输送点。 为了确保燃料在阳极的有效区域的均匀输送,一个或多个分散构件被放置在蒸发垫上,以有效地将燃料横向分散在每个注入口周围。
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公开(公告)号:US5748713A
公开(公告)日:1998-05-05
申请号:US717396
申请日:1996-09-20
申请人: Frank Kovacs, Jr.
发明人: Frank Kovacs, Jr.
IPC分类号: H04M1/27 , H04M1/2745 , H04M1/275 , H04M15/00 , H04M11/00
CPC分类号: H04M15/47 , H04M1/275 , H04M15/00 , H04M2215/0148
摘要: A calling card telephone call may be automatically initiated by the aid of an intelligent cared (10) having the capability of generating a first and second sequences of DTMF signals. Upon actuating the card in a first manner, the card generates the first DTMF signal sequence that corresponds to a calling card carrier access number. Upon actuating the card in a second manner, the card generates the second DTMF signal sequence corresponding to a card holder personal identification code. Thus, by actuating the card in the first and second manner, a card holder can effectuate the input of the carrier access number and card holder personal identification number, respectively, without having to enter this information via a key pad, thereby gaining reducing the incidence of card fraud.
摘要翻译: 可以通过具有产生第一和第二序列DTMF信号的能力的智能关怀(10)来自动启动呼叫卡电话呼叫。 在以第一方式致动卡时,卡产生对应于呼叫卡运营商接入号码的第一DTMF信号序列。 在以第二种方式致动卡时,卡产生对应于持卡人个人识别码的第二DTMF信号序列。 因此,通过以第一和第二方式启动卡,卡座可以分别实现载体接入号码和持卡人个人识别号码的输入,而不必经由键盘输入该信息,从而降低发射率 的卡欺诈
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公开(公告)号:US20050227140A1
公开(公告)日:2005-10-13
申请号:US11026728
申请日:2005-04-13
CPC分类号: H01M4/8807 , H01M4/8605 , H01M4/8817 , H01M4/92 , H01M4/96 , H01M8/1004 , H01M8/1009 , Y02E60/523 , Y10T428/30
摘要: A fuel cell diffusion layer providing a preferential path by which liquid reactants or byproducts may be supplied to or removed from a direct oxidation fuel cell is described. The modified diffusion layer will be typically on the cathode side of the fuel cell and its use is to eliminate or minimize flooding of the cathode diffusion layer area, which is a performance limiting condition in direct methanol fuel cells. In accordance with one embodiment of the invention, the diffusion layer includes a substrate that is coated with a microporous layer. A pattern may be embossed into the diffusion layer, to create preferential flow paths by which water will travel and thereby be removed from the cathode catalyst area. This avoids cathode flooding and avoids build up of potentially destructive pressure by possible cathodic water accumulation. This also provides a means for collecting cathode water for redirection In accordance with another aspect of the invention, the preferential path is established by applying a thicker microporous layer to the carbon cloth or carbon paper and drying it in such a fashion so that when it dries, the surface of the microporous layer cracks to provide the pathways.
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公开(公告)号:US20050081433A1
公开(公告)日:2005-04-21
申请号:US10688711
申请日:2003-10-17
申请人: Xiaoming Ren , Kevin Shufon , Frank Kovacs
发明人: Xiaoming Ren , Kevin Shufon , Frank Kovacs
CPC分类号: C10L1/003 , C10L1/02 , C10L1/10 , C10L1/1216 , C10L1/1275 , C10L1/1852 , C10L1/28 , C10L1/301 , C10L1/303 , F17C11/005
摘要: Fuel mixtures for direct methanol fuel cells are disclosed. The fuels include methanol and additives that react with water to produce methanol and other easily electro-oxidizable compounds including dimethyloxymethane, methylorthoformate, tetramethylorthocarbonate, trimethylborate, and tetramethylorthosilicate. Other additives to improve safety and efficiency of the fuel cell include sulfonated activated carbon particles and metal hydrides, such as LiAlH4, NaBH4, LiBH4, (CH3)2 NHBH3, NaAlH4, B2H6, NaCNBH3, CaH2, LiH, NaH, KH or sodium bis (2-methoxyethoxy) dihydridaluminate.
摘要翻译: 公开了用于直接甲醇燃料电池的燃料混合物。 燃料包括与水反应以产生甲醇的甲醇和添加剂,以及其它易于电氧化的化合物,包括二甲氧基甲烷,原甲酸甲酯,原碳酸四甲酯,硼酸三甲酯和原硅酸四甲酯。 提高燃料电池的安全性和效率的其它添加剂包括磺化活性炭颗粒和金属氢化物,例如LiAlH 4,NaBH 4,LiBH 4,/ >,(CH 3 3)2 NHBH 3,NaAlH 4,B 2, H 6,NaCNBH 3,CaH 2,LiH,NaH,KH或双(2-甲氧基乙氧基)二氢铝酸钠。
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