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11.发明申请Direct oxidation fuel cells with improved cathode gas diffusion media for low air stoichiometry operation 失效直接氧化燃料电池具有改进的阴极气体扩散介质，用于低空气化学计量操作公开(公告)号：US20080176112A1
公开(公告)日：2008-07-24
申请号：US11655867
申请日：2007-01-22
申请人： Guoqiang Lu , Chao-Yang Wang , Takashi Akiyama
发明人： Guoqiang Lu , Chao-Yang Wang , Takashi Akiyama
CPC分类号： H01M4/8605 , H01M8/1007 , H01M8/1011 , H01M2004/8689 , Y02E60/523 , Y10S977/742
摘要： A cathode for use in a direct oxidation fuel cell (DOFC) comprises a gas diffusion medium (GDM) including a backing layer and a microporous layer comprising a fluoropolymer and an electrically conductive material, wherein loading of the fluoropolymer in the microporous layer is in the range from about 10 to about 60 wt. %. In use, a concentrated solution of a liquid fuel is supplied to an anode and an oxidant to the cathode of the fuel cell, and the fuel cell may be operated at a low oxidant stoichiometry ξc not greater than about 2.5.
摘要翻译： 用于直接氧化燃料电池（DOFC）的阴极包括气体扩散介质（GDM），其包括背衬层和包含氟聚合物和导电材料的微孔层，其中所述含氟聚合物在微孔层中的加载位于 范围为约10至约60wt。 ％。 在使用中，将液体燃料的浓缩溶液供给到燃料电池的阴极的阳极和氧化剂，并且燃料电池可以以不大于 约2.5。
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公开(公告)号：US20070077479A1
公开(公告)日：2007-04-05
申请号：US11242944
申请日：2005-10-05
申请人： Takashi Akiyama , Chao-Yang Wang , Guoqiang Lu
发明人： Takashi Akiyama , Chao-Yang Wang , Guoqiang Lu
IPC分类号： H01M8/06
CPC分类号： H01M8/06 , H01M8/04186 , H01M8/1011 , H01M8/1013 , Y02E60/522 , Y02E60/523
摘要： A direct oxidation fuel cell (DOFC) system, comprises at least one fuel cell assembly including a cathode and an anode with an electrolyte positioned therebetween, adapted for performing selected electrochemical reactions; a source of concentrated liquid fuel in fluid communication with an inlet of the anode; an oxidant supply in fluid communication with an inlet of the cathode; a liquid/gas (L/G) separator in fluid communication with outputs of the anode and cathode for receiving unreacted fuel and liquid and gaseous products of the electrochemical reactions; and a converter for catalytically converting a portion of the unreacted fuel to the liquid and gaseous products.
摘要翻译： 直接氧化燃料电池（DOFC）系统包括至少一个燃料电池组件，其包括阴极和阳极，电解质位于它们之间，适于进行选择的电化学反应; 与阳极入口流体连通的浓缩液体燃料源; 与阴极入口流体连通的氧化剂供应源; 液体/气体（L / G）分离器，与阳极和阴极的输出端流体连通，用于接收未反应的燃料和电化学反应的液体和气体产物; 以及用于将未反应燃料的一部分催化转化为液体和气态产物的转化器。
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13.发明申请Direct oxidation fuel cell and system operating on concentrated fuel using low oxidant stoichiometry 失效直接氧化燃料电池和使用低氧化学计量浓缩燃料的系统公开(公告)号：US20060141338A1
公开(公告)日：2006-06-29
申请号：US11020306
申请日：2004-12-27
申请人： Chao-Yang Wang , Guoqiang Lu , Fuqiang Liu , Takashi Akiyama
发明人： Chao-Yang Wang , Guoqiang Lu , Fuqiang Liu , Takashi Akiyama
CPC分类号： H01M8/04164 , H01M4/8605 , H01M4/921 , H01M8/0234 , H01M8/04194 , H01M8/1004 , H01M8/1011 , H01M2004/8684 , H01M2008/1095 , Y02E60/523
摘要： A direct oxidation fuel cell system includes a membrane electrode assembly (MEA), a high concentration fuel and an oxidant source. Embodiments include a controller for adjusting the oxidant stoichiometric ratio or air flow to maximize the liquid water phase in the cathode exhaust and minimize the water vapor in the exhaust thereby eliminating the need for a water condenser for condensing water vapor produced and exhausted from the cathode of the MEA.
摘要翻译： 直接氧化燃料电池系统包括膜电极组件（MEA），高浓度燃料和氧化剂源。 实施例包括用于调节氧化剂化学计量比或空气流量以使阴极排气中的液态水相最大化并使排气中的水蒸气最小化的控制器，从而消除了将冷凝器从阴极产生和排出的水蒸气冷凝的需要 MEA。
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14.发明授权Direct oxidation fuel cells with improved cathode gas diffusion media for low air stoichiometry operation 失效直接氧化燃料电池具有改进的阴极气体扩散介质，用于低空气化学计量操作公开(公告)号：US08785070B2
公开(公告)日：2014-07-22
申请号：US12722081
申请日：2010-03-11
申请人： Guoqiang Lu , Chao-Yang Wang , Takashi Akiyama
发明人： Guoqiang Lu , Chao-Yang Wang , Takashi Akiyama
CPC分类号： H01M4/8605 , H01M8/1007 , H01M8/1011 , H01M2004/8689 , Y02E60/523 , Y10S977/742
摘要： A cathode for use in a direct oxidation fuel cell (DOFC) comprises a gas diffusion medium (GDM) including a backing layer and a microporous layer comprising a fluoropolymer and an electrically conductive material, wherein loading of the fluoropolymer in the microporous layer is in the range from about 10 to about 60 wt. %. In use, a concentrated solution of a liquid fuel is supplied to an anode and an oxidant to the cathode of the fuel cell, and the fuel cell may be operated at a low oxidant stoichiometry ξc not greater than about 2.5.
摘要翻译： 用于直接氧化燃料电池（DOFC）的阴极包括气体扩散介质（GDM），其包括背衬层和包含含氟聚合物和导电材料的微孔层，其中含氟聚合物在微孔层中的加载在 范围为约10至约60wt。 ％。 在使用中，将液体燃料的浓缩溶液供应到燃料电池的阴极的阳极和氧化剂，并且燃料电池可以以不大于约2.5的低氧化物化学计量运行。
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15.发明授权Dynamically controllable direct oxidation fuel cell systems and methods therefor 有权动态可控直接氧化燃料电池系统及其方法公开(公告)号：US07776482B2
公开(公告)日：2010-08-17
申请号：US11242910
申请日：2005-10-05
申请人： Takashi Akiyama , Chao-Yang Wang
发明人： Takashi Akiyama , Chao-Yang Wang
IPC分类号： H01M2/00
CPC分类号： H01M8/04291 , H01M8/04186 , H01M8/1009 , H01M8/1011 , H01M8/2455 , Y02E60/523
摘要： A direct oxidation fuel cell (DOFC) system comprises at least one fuel cell assembly including a cathode and an anode with an electrolyte positioned therebetween; a source of liquid fuel in fluid communication with an anode inlet; an oxidant supply in fluid communication with a cathode inlet; a liquid/gas (L/G) separator in fluid communication with anode and cathode outlets for: (1) receiving unreacted fuel and liquid and gaseous products of electrochemical reactions at the cathode and anode, and (2) supplying the unreacted fuel and liquid product to the inlet of said anode; and a control and/or regulation system for determining a fuel efficiency value of the DOFC system during operation and determining and regulating and/or controlling oxidant stoichiometry of the DOFC system at an appropriate value in response to the determined fuel efficiency value.
摘要翻译： 直接氧化燃料电池（DOFC）系统包括至少一个燃料电池组件，其包括阴极和阳极，电解质位于它们之间; 与阳极入口流体连通的液体燃料源; 与阴极入口流体连通的氧化剂供应源; 与阳极和阴极出口流体连通的液体/气体（L / G）分离器，用于：（1）在阴极和阳极处接收未反应的燃料和电化学反应的液体和气体产物，以及（2）供应未反应的燃料和液体 产品到所述阳极的入口; 以及用于在操作期间确定DOFC系统的燃料效率值的控制和/或调节系统，并响应于所确定的燃料效率值，以适当的值确定和/或控制DOFC系统的氧化剂化学计量。
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16.发明申请Cathode electrodes for direct oxidation fuel cells and systems operating with concentrated liquid fuel at low oxidant stoichiometry 审中-公开用于直接氧化燃料电池的阴极电极和以低氧化学计量浓缩液体燃料运行的系统公开(公告)号：US20070154777A1
公开(公告)日：2007-07-05
申请号：US11325320
申请日：2006-01-05
申请人： Takashi Akiyama , Chao-Yang Wang
发明人： Takashi Akiyama , Chao-Yang Wang
CPC分类号： H01M8/1009 , H01M4/8668 , H01M4/8673 , H01M4/8807 , H01M4/8828 , H01M4/8882 , H01M8/0245 , H01M8/1011 , H01M2004/8689 , Y02E60/523
摘要： A cathode electrode for use in a fuel cell comprises, in sequence, a catalyst layer, a hydrophobic microporous layer (MPL), and a gas diffusion layer (GDL), wherein the MPL comprises a mixture of first and second hydrophobic materials having different melt viscosities. Also disclosed is a method for fabricating the hydrophobic microporous layer as part of a cathode electrode. The cathode electrode is particularly useful in direct oxidation fuel cells and systems, such as direct methanol fuel cells and systems operating with highly concentrated liquid fuel.
摘要翻译： 用于燃料电池的阴极包括依次包括催化剂层，疏水性微孔层（MPL）和气体扩散层（GDL），其中MPL包括具有不同熔体的第一和第二疏水材料的混合物 粘度。 还公开了作为阴极电极的一部分制造疏水性微孔层的方法。 阴极电极特别适用于直接氧化燃料电池和系统，如直接甲醇燃料电池和使用高浓缩液体燃料的系统。
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17.发明申请Dynamically controllable direct oxidation fuel cell systems & methods therefor 有权动态可控直接氧化燃料电池系统及其方法公开(公告)号：US20070077466A1
公开(公告)日：2007-04-05
申请号：US11242910
申请日：2005-10-05
申请人： Takashi Akiyama , Chao-Yang Wang
发明人： Takashi Akiyama , Chao-Yang Wang
IPC分类号： H01M8/04
CPC分类号： H01M8/04291 , H01M8/04186 , H01M8/1009 , H01M8/1011 , H01M8/2455 , Y02E60/523
摘要： A direct oxidation fuel cell (DOFC) system comprises at least one fuel cell assembly including a cathode and an anode with an electrolyte positioned therebetween; a source of liquid fuel in fluid communication with an anode inlet; an oxidant supply in fluid communication with a cathode inlet; a liquid/gas (L/G) separator in fluid communication with anode and cathode outlets for: (1) receiving unreacted fuel and liquid and gaseous products of electrochemical reactions at the cathode and anode, and (2) supplying the unreacted fuel and liquid product to the inlet of said anode; and a control and/or regulation system for determining a fuel efficiency value of the DOFC system during operation and determining and regulating and/or controlling oxidant stoichiometry of the DOFC system at an appropriate value in response to the determined fuel efficiency value.
摘要翻译： 直接氧化燃料电池（DOFC）系统包括至少一个燃料电池组件，其包括阴极和阳极，电解质位于它们之间; 与阳极入口流体连通的液体燃料源; 与阴极入口流体连通的氧化剂供应源; 与阳极和阴极出口流体连通的液体/气体（L / G）分离器，用于：（1）在阴极和阳极处接收未反应的燃料和电化学反应的液体和气体产物，以及（2）供应未反应的燃料和液体 产品到所述阳极的入口; 以及用于在操作期间确定DOFC系统的燃料效率值的控制和/或调节系统，并响应于所确定的燃料效率值，以适当的值确定和/或控制DOFC系统的氧化剂化学计量。
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18.发明授权Low-porosity anode diffusion media for high concentration direct methanol fuel cells and method of making 失效用于高浓度直接甲醇燃料电池的低孔阳极扩散介质及其制备方法公开(公告)号：US08278001B2
公开(公告)日：2012-10-02
申请号：US12711817
申请日：2010-02-24
申请人： Seung Hun Jung , Chao-Yang Wang , Takashi Akiyama
发明人： Seung Hun Jung , Chao-Yang Wang , Takashi Akiyama
CPC分类号： H01M8/023 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/0245 , H01M8/04186 , H01M8/04197 , H01M8/1009 , H01M8/1011 , Y02E60/523 , Y02P70/56
摘要： A direct oxidation fuel cell (DOFC) having a liquid fuel and an anode electrode configured to generate power. The anode electrode includes a gas diffusion layer (GDL) and a microporous layer, such that a decrease in the porosity of the GDL achieves an increase in the power density of the DOFC.
摘要翻译： 具有液体燃料的直接氧化燃料电池（DOFC）和被配置为产生电力的阳极电极。 阳极包括气体扩散层（GDL）和微孔层，使得GDL的孔隙率的降低实现了DOFC的功率密度的增加。
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19.发明申请LOW-POROSITY ANODE DIFFUSION MEDIA FOR HIGH CONCENTRATION DIRECT METHANOL FUEL CELLS AND METHOD OF MAKING 失效低浓度阳离子扩散介质用于高浓度直接甲醇燃料电池及其制备方法公开(公告)号：US20100221625A1
公开(公告)日：2010-09-02
申请号：US12711817
申请日：2010-02-24
申请人： Seung Hun JUNG , Chao-Yang Wang , Takashi Akiyama
发明人： Seung Hun JUNG , Chao-Yang Wang , Takashi Akiyama
CPC分类号： H01M8/023 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/0245 , H01M8/04186 , H01M8/04197 , H01M8/1009 , H01M8/1011 , Y02E60/523 , Y02P70/56
摘要： A direct oxidation fuel cell (DOFC) having a liquid fuel and an anode electrode configured to generate power. The anode electrode includes a gas diffusion layer (GDL) and a microporous layer, such that a decrease in the porosity of the GDL achieves an increase in the power density of the DOFC.
摘要翻译： 具有液体燃料的直接氧化燃料电池（DOFC）和被配置为产生电力的阳极电极。 阳极包括气体扩散层（GDL）和微孔层，使得GDL的孔隙率的降低实现了DOFC的功率密度的增加。
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20.发明授权Direct oxidation fuel cells with improved cathode gas diffusion media for low air stoichiometry operation 失效直接氧化燃料电池具有改进的阴极气体扩散介质，用于低空气化学计量操作公开(公告)号：US07704629B2
公开(公告)日：2010-04-27
申请号：US11655867
申请日：2007-01-22
申请人： Guoqiang Lu , Chao-Yang Wang , Takashi Akiyama
发明人： Guoqiang Lu , Chao-Yang Wang , Takashi Akiyama
CPC分类号： H01M4/8605 , H01M8/1007 , H01M8/1011 , H01M2004/8689 , Y02E60/523 , Y10S977/742
摘要： A cathode for use in a direct oxidation fuel cell (DOFC) comprises a gas diffusion medium (GDM) including a backing layer and a microporous layer comprising a fluoropolymer and an electrically conductive material, wherein loading of the fluoropolymer in the microporous layer is in the range from about 10 to about 60 wt. %. In use, a concentrated solution of a liquid fuel is supplied to an anode and an oxidant to the cathode of the fuel cell, and the fuel cell may be operated at a low oxidant stoichiometry ξc not greater than about 2.5.
摘要翻译： 用于直接氧化燃料电池（DOFC）的阴极包括气体扩散介质（GDM），其包括背衬层和包含含氟聚合物和导电材料的微孔层，其中含氟聚合物在微孔层中的加载在 范围为约10至约60wt。 ％。 在使用中，将液体燃料的浓缩溶液供应到燃料电池的阴极的阳极和氧化剂，并且燃料电池可以以不大于约2.5的低氧化物化学计量运行。
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