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    • 81. 发明授权
    • Passive water management fuel cell
    • 被动水管理燃料电池
    • US06794077B2
    • 2004-09-21
    • US10036181
    • 2001-12-28
    • Jung S. YiDeliang YangRichard D. BreaultAlbert P. GrassoGlenn W. Scheffler
    • Jung S. YiDeliang YangRichard D. BreaultAlbert P. GrassoGlenn W. Scheffler
    • H01M202
    • H01M8/04291H01M8/0247H01M8/0267H01M8/04104H01M8/04134H01M8/241H01M8/2457H01M8/2484
    • A proton exchange membrane (PEM) fuel cell includes fuel and oxidant flow field plates (26, 40) having fuel and oxidant channels (27, 28; 41, 44), and water channels, the ends (29, 48) of which that are adjacent to the corresponding reactant gas inlet manifold (34, 42) are dead ended, the other ends (31, 50) draining excess water into the corresponding reactant gas exhaust manifold (36, 45). Flow restrictors (39, 47) maintain reactant gas pressure above exit manifold pressure, and may comprise interdigitated channels (65, 66; 76, 78). Solid reactant gas flow field plates have small holes (85, 88) between reactant gas channels (27, 28; 41) and water drain channels (29, 30; 49, 50). In one embodiment, the fuel cells of a stack may be separated by either coolant plates (51) or solid plates (55) or both. In a second embodiment, coolant plates (51a) have weep holes (57) that inject water into the ends (29) of the reactant gas water channels which are in the region of the inlet manifold (34), thereby assuring humidification of the reactants.
    • 质子交换膜(PEM)燃料电池包括具有燃料和氧化剂通道(27,28,41,44)和水通道的燃料和氧化剂流场板(26,40),其中所述端部(29,48) 邻近相应的反应气体入口歧管(34,42)是死端的,另一端(31,50)将多余的水排放到相应的反应气体排气歧管(36,45)中。 流量限制器(39,47)将反应气体压力保持在出口歧管压力以上,并且可以包括交错的通道(65,66; 76,78)。 固体反应物气体流场板在反应气体通道(27,28; 41)和排水通道(29,30; 49,50)之间具有小孔(85,88)。 在一个实施例中,堆叠的燃料电池可以由冷却板(51)或固体板(55)或两者分开。 在第二实施例中,冷却剂板(51a)具有将水注入位于入口歧管(34)的区域中的反应物气体水通道的端部(29)的排水孔(57),从而确保反应物的加湿 。
    • 83. 发明授权
    • Freeze tolerant fuel cell power plant
    • 耐冷燃料电池发电厂
    • US06528194B1
    • 2003-03-04
    • US09935254
    • 2001-08-22
    • David A. ConditMichael L. PerryRichard D. Breault
    • David A. ConditMichael L. PerryRichard D. Breault
    • H01M804
    • H01M8/04253F28C3/04F28D20/025F28F19/006H01M8/04029Y02E60/145
    • The invention is a freeze tolerant fuel cell power plant that includes at least one fuel cell; a coolant loop having a coolant circulating device that directs a water coolant through a water transport plate within the fuel cell; and a water displacement system having a freeze tolerant accumulator that contains a water immiscible fluid and water coolant. The water displacement system also includes a water immiscible fluid pump, heater and displacement valves for directing the water immiscible fluid to flow from the accumulator into the coolant loop; for directing the water coolant in the coolant loop to flow into the accumulator; and, for directing heated water immiscible fluid to flow from the accumulator into the coolant loop and back into the accumulator.
    • 本发明是一种耐冷燃料电池发电厂,其包括至少一个燃料电池; 冷却剂回路,其具有冷却剂循环装置,其引导水冷却剂通过所述燃料电池内的水输送板; 以及具有防冻容器的排水系统,其包含与水不混溶的流体和水冷却剂。 排水系统还包括水不混溶流体泵,加热器和排出阀,用于引导水不混溶流体从蓄能器流入冷却剂回路; 用于引导冷却剂回路中的水冷却剂流入蓄能器; 并且用于引导加热的水不混溶的流体从蓄能器流入冷却剂回路并返回到蓄能器中。
    • 84. 发明授权
    • Fuel cell with a direct antifreeze impermeable cooler plate
    • 燃料电池具有直接防冻防渗冷却板
    • US06461753B1
    • 2002-10-08
    • US09542209
    • 2000-04-04
    • Richard D. BreaultMargaret M. SteinbuglerDavid A. Condit
    • Richard D. BreaultMargaret M. SteinbuglerDavid A. Condit
    • H01M804
    • H01M8/04029H01M8/04074
    • A fuel cell with a direct antifreeze impermeable cooler plate is disclosed for producing electrical energy from reducing fluid and process oxidant reactant streams. The fuel cell includes an electrolyte secured between an anode catalyst and a cathode catalyst; an anode flow field secured adjacent the anode catalyst for directing the reducing fluid to pass adjacent the anode catalyst; a cathode flow field secured adjacent the cathode catalyst for directing the process oxidant stream to pass adjacent the cathode catalyst; a direct antifreeze impermeable cooler plate secured in heat exchange relationship with the cathode flow field; and a direct antifreeze solution passing through the cooler plate for controlling temperature within the fuel cell. The direct antifreeze solution is an organic antifreeze solution that is not volatile at cell operating temperatures. A preferred direct antifreeze solution is an alkanetriol selected from the group consisting of glycerol, butanetriol, and pentanetriol having favorable low volatility and high surface tension characteristics. The direct antifreeze impermeable cooler plate may be constructed of any material that is impermeable to liquid and compatible with a fuel cell operating environment such as plated metals, or in a preferred embodiment, the cooler plate may be a fine pore commercial graphite material.
    • 公开了一种具有直接防冻防渗冷却器板的燃料电池,用于从还原流体和处理氧化剂反应物流产生电能。 燃料电池包括固定在阳极催化剂和阴极催化剂之间的电解质; 邻近阳极催化剂固定的阳极流场,用于引导还原流体邻近阳极催化剂通过; 与阴极催化剂相邻固定的阴极流场,用于引导工艺氧化剂流通过邻近的阴极催化剂; 与阴极流场保持热交换关系的直接防冻防渗冷却板; 以及通过冷却器板的直接防冻溶液,用于控制燃料电池内的温度。 直接防冻溶液是在电池工作温度下不挥发的有机防冻溶液。 优选的直接防冻溶液是选自具有良好的低挥发性和高表面张力特性的甘油,丁三醇和戊三醇的烷三醇。 直接防冻防渗冷却器板可以由对液体不可渗透并且与诸如电镀金属的燃料电池操作环境兼容的任何材料构成,或者在优选实施例中,冷却器板可以是细孔商业石墨材料。
    • 86. 发明授权
    • Direct antifreeze cooled fuel cell
    • 直接防冻冷却燃料电池
    • US06316135B1
    • 2001-11-13
    • US09359475
    • 1999-07-22
    • Richard D. BreaultDavid A. ConditAlbert P. GrassoMichael E. Gorman
    • Richard D. BreaultDavid A. ConditAlbert P. GrassoMichael E. Gorman
    • H01M804
    • H01M8/04134H01M8/04029H01M8/04089H01M8/04126H01M8/04156H01M8/04253H01M2008/1095H01M2300/0082
    • A direct antifreeze cooled fuel cell is disclosed for producing electrical energy from reducing and process oxidant fluid streams that includes an electrolyte secured between an anode catalyst and a cathode catalyst; a porous anode substrate secured in direct fluid communication with and supporting the anode catalyst; a porous wet proofed cathode substrate secured in direct fluid communication with and supporting the cathode catalyst; a porous water transport plate secured in direct fluid communication with the porous cathode substrate; and, a direct antifreeze solution passing through the porous water transport plate. In operation of the fuel cell, because product water generated electrochemically at the cathode catalyst flows away from the cathode catalyst into the cathode substrate and into the water transport plate and because the cathode substrate is wetproofed, the antifreeze solution passing through the water transport plate remains essentially within this plate. In a preferred embodiment, the antifreeze solution passing through the water transport plate may be directed to flow at a pressure less than that of the oxidant stream passing adjacent the cathode substrate.
    • 公开了直接防冻冷却的燃料电池,用于通过减少和处理氧化剂流体流产生电能,所述氧化剂流体流包括固定在阳极催化剂和阴极催化剂之间的电解质; 与阳极催化剂直接流体连通并支撑阳极催化剂的多孔阳极基板; 固定成与阴极催化剂直接流体连通并支撑阴极催化剂的多孔湿气阴极基板; 与多孔阴极基板直接流体连通地固定的多孔水输送板; 以及通过多孔水输送板的直接防冻溶液。 在燃料电池的运行中,由于在阴极催化剂上电化学产生的水由阴极催化剂流入阴极基体并进入水输送板,并且由于阴极基板是防水的,所以通过水输送板的防冻溶液保持 基本上在这个板内。 在优选的实施方案中,通过水输送板的防冻液可以以比通过邻近阴极底物的氧化剂流的压力低的流动来引导。