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1. 发明授权

US09755243B2 Electrode catalyst layer for fuel cells, electrode for fuel cells, membrane electrode assembly for fuel cells, and fuel cell 有权
公开(公告)号：US09755243B2
公开(公告)日：2017-09-05
申请号：US14240653
申请日：2012-08-14
申请人： Tetsuya Mashio , Atsushi Ohma , Yoshitaka Ono , Hiroshi Iden
发明人： Tetsuya Mashio , Atsushi Ohma , Yoshitaka Ono , Hiroshi Iden
IPC分类号： H01M4/86 , B01J23/42 , H01M4/92 , B01J35/00 , H01M8/1007 , H01M8/1018
CPC分类号： H01M4/8663 , B01J23/42 , B01J35/0033 , B01J35/0053 , H01M4/8605 , H01M4/8668 , H01M4/92 , H01M4/925 , H01M8/1007 , H01M2008/1095
摘要： This electrode catalyst layer for fuel cells is provided with: an electrode catalyst that comprises a conductive carrier and platinum-containing metal particles supported on the surface of the conductive carrier; and an ionomer that covers the electrode catalyst. This electrode catalyst layer for fuel cells is characterized in that the average thickness of the ionomer is 2.4 nm or less. This electrode catalyst layer for fuel cells is capable of having a good balance between proton transport properties and transport properties for a gas such as an oxidant gas or a fuel gas even in cases where the amount of supported platinum is decreased. In addition, an electrode for fuel cells, a membrane electrode assembly for fuel cells, and a fuel cell, each having good current-voltage characteristics, can be obtained using the above-described electrode catalyst layer for fuel cells.

2. 发明申请

US20090104507A1 ELECTROLYTE MEMBRANE-ELECTRODE ASSEMBLY AND PRODUCTION METHOD THEREOF 有权
标题翻译：电解质膜电极组件及其制造方法
公开(公告)号：US20090104507A1
公开(公告)日：2009-04-23
申请号：US12064989
申请日：2006-08-17
申请人： Atsushi Ohma , Yozo Okuyama , Yasuhiro Numao
发明人： Atsushi Ohma , Yozo Okuyama , Yasuhiro Numao
IPC分类号： H01M2/08 , H01M4/86 , B32B37/12
CPC分类号： H01M8/0286 , H01M4/881 , H01M8/0273 , H01M8/0284 , H01M2008/1095 , Y02P70/56 , Y10T156/10
摘要： An electrolyte membrane-electrode assembly of the present invention includes: an electrolyte membrane; an anode-side electrode including an anode-side catalyst layer disposed on one side of the electrolyte membrane and an anode-side gas diffusion layer formed on the anode-side catalyst layer beyond a surface-direction end of the anode-side catalyst layer; an anode-side adhesive layer disposed on at least a part of a periphery of the anode-side catalyst layer; and an anode-side gasket layer disposed in contact with the anode-side adhesive layer, wherein a surface-direction inner end of the anode-side adhesive lay is located inside beyond a surface-direction inner end of the anode-side gasket layer, and a part of the anode-side adhesive layer is located to overlap with a part of the anode-side gas diffusion layer with respect to a thickness direction. Further, on the other side of the electrolyte membrane, a cathode-side respective layers having the same constructions as above are disposed.
摘要翻译：本发明的电解质膜 - 电极组件包括：电解质膜; 阳极侧电极，其包括设置在所述电解质膜的一侧的阳极侧催化剂层和在所述阳极侧催化剂层上形成的阳极侧气体扩散层，超过所述阳极侧催化剂层的表面方向端; 设置在所述阳极侧催化剂层的周围的至少一部分上的阳极侧粘合剂层; 阳极侧粘合剂层的表面方向内端位于阳极侧垫片层的表面方向内侧的内侧，并且阳极侧粘合剂层的一部分位于与阳极侧气体扩散层的一部分相对于厚度方向重叠。此外，在电解质膜的另一侧，设置具有与上述相同结构的阴极侧各自的层。

3. 发明申请

US20070224477A1 Fuel Cell 审中-公开
标题翻译：燃料电池
公开(公告)号：US20070224477A1
公开(公告)日：2007-09-27
申请号：US10594385
申请日：2005-02-17
申请人： Atsushi Ohma , Yoshitaka Ono , Ryoichi Shimoi , Kazuya Tajiri
发明人： Atsushi Ohma , Yoshitaka Ono , Ryoichi Shimoi , Kazuya Tajiri
IPC分类号： H01M8/10
CPC分类号： H01M4/8642 , H01M4/8636 , H01M8/0258 , H01M8/0267 , H01M8/04029 , H01M8/04089 , H01M8/1004 , H01M2004/8689 , H01M2008/1095 , Y02E60/521
摘要： A fuel cell (1) comprises a cathode catalyst layer (3) and an anode catalyst layer (4) disposed on each surface of an electrolyte membrane (2), an oxidant gas passage (8) facing the cathode catalyst layer (3), and a fuel gas passage (9) facing the anode catalyst layer (9). The cathode catalyst layer (3) contains a metal catalyst (16). In a region (A), in which the differential electric potential between the cathode catalyst layer (3) and the electrolyte membrane (2) is larger than in another region, the metal catalyst (16) content of the cathode catalyst layer or the specific surface area of the metal catalyst (16) in the form of minute parti
摘要翻译：燃料电池（1）包括设置在电解质膜（2）的每个表面上的阴极催化剂层（3）和阳极催化剂层（4），面向阴极催化剂层（3）的氧化剂气体通道（8）和面向阳极催化剂层（9）的燃料气体通路（9）。阴极催化剂层（3）含有金属催化剂（16）。在阴极催化剂层（3）与电解质膜（2）之间的差分电位大于其他区域的区域（A）中，阴极催化剂层的金属催化剂（16）含量或特定的金属催化剂（16）的表面积为微小的部分

4. 发明申请

US20070105001A1 Fuel cell stack 审中-公开
标题翻译：燃料电池堆
公开(公告)号：US20070105001A1
公开(公告)日：2007-05-10
申请号：US10582222
申请日：2004-11-25
申请人： Atsushi Ohma
发明人： Atsushi Ohma
IPC分类号： H01M8/02 , H01M4/94 , H01M8/10 , H01M4/96
CPC分类号： H01M8/026 , H01M4/861 , H01M8/0258 , H01M8/0265 , H01M8/0267 , H01M8/04007 , H01M8/2405 , H01M8/2418 , H01M8/2457 , H01M8/2483
摘要： A fuel cell stack (10) comprises a plurality of stacked unit cells (11). Each unit cell (11) comprises a membrane electrode assembly (1a), and separators (1b, 1c) provided with ribs (5b) which contact the membrane electrode assembly (1a) to realize a current collecting function, and gas passages (4b) formed between the ribs (5b) for supplying a gas to a gas diffusion electrode (1p). The interior of the fuel cell stack (10) comprises a first region and a second region having a lower temperature than the first region. Any one of the gas passages (4b), the ribs (5b), and the gas diffusion electrode (1p) is constituted such that the gas diffusion through the gas diffusion electrode (1p) adjacent to the first region is improved beyond the gas diffusion through the gas diffusion electrode (1p) adjacent to the second region.
摘要翻译：燃料电池堆（10）包括多个堆叠单元电池（11）。每个单电池（11）包括膜电极组件（1a）和设置有与膜电极组件（1a）接触以实现集电功能的肋（5b）的隔板（1b，1c），以及在用于向气体扩散电极（1 p）供给气体的肋（5b）之间形成的气体通路（4b）。燃料电池堆（10）的内部包括具有比第一区域低的温度的第一区域和第二区域。气体通路（4b），肋（5b）和气体扩散电极（1p）中的任何一个构成为使得通过与第一区域相邻的气体扩散电极（1p）的气体扩散得到改善超过通过邻近第二区域的气体扩散电极（1 p）的气体扩散。

5. 发明授权

US06572994B1 Polymer electrolyte fuel cell system 有权
标题翻译：聚合物电解质燃料电池系统
公开(公告)号：US06572994B1
公开(公告)日：2003-06-03
申请号：US09604045
申请日：2000-06-26
申请人： Soichiro Shimotori , Makoto Harada , Kazuo Saito , Yasuji Ogami , Atsushi Ohma , Atsuo Sonai , Michio Hori
发明人： Soichiro Shimotori , Makoto Harada , Kazuo Saito , Yasuji Ogami , Atsushi Ohma , Atsuo Sonai , Michio Hori
IPC分类号： H01M804
CPC分类号： B60L11/1898 , B60L11/1892 , H01M8/04014 , H01M8/04029 , H01M8/04119 , H01M8/04156 , H01M8/0612 , H01M8/1007 , H01M2300/0082 , Y02T90/34
摘要： A fuel cell system comprising a fuel cell stack and a fuel reformer for reforming a fuel and supplying a reformed fuel to the fuel cell stack, further comprising a total enthalpy heat exchanger for exchanging heat and moisture between a reacted gas and an unreacted gas from the fuel cell stack, a separator for separating moisture from the fuel gas fed from the fuel cell stack or from an oxidant gas, and a mixer for mixing part of the moisture separated by the separator with a medium having a freezing point of 0° C. or less.
摘要翻译：一种燃料电池系统，包括燃料电池堆和用于重整燃料并将重整燃料供应到燃料电池堆的燃料重整器，还包括用于在反应气体和未反应气体之间交换热和湿气的总焓热交换器燃料电池堆，用于从燃料电池堆或氧化剂气体供应的燃料气体中分离水分的分离器和用于将由分离器分离的部分水分与冰点为0℃的介质混合的混合器。或更少。

6. 发明授权

US09029045B2 Gas diffusion electrode and production method for same; membrane electrode assembly and production method for same 有权
标题翻译：气体扩散电极及其制作方法; 膜电极组装及其制作方法相同
公开(公告)号：US09029045B2
公开(公告)日：2015-05-12
申请号：US13379204
申请日：2010-06-25
申请人： Kazuyuki Satou , Atsushi Ohma , Yoshitaka Ono , Hiroshi Iden , Kei Sakai
发明人： Kazuyuki Satou , Atsushi Ohma , Yoshitaka Ono , Hiroshi Iden , Kei Sakai
IPC分类号： H01M8/04 , H01M8/10 , H01M4/86 , H01M4/88 , H01M8/02
CPC分类号： H01M8/1004 , H01M4/8605 , H01M4/8652 , H01M4/8657 , H01M4/881 , H01M4/8828 , H01M4/8892 , H01M4/8896 , H01M8/0243 , H01M8/0245 , Y02E60/521 , Y02P70/56
摘要： [Object] To provide a gas diffusion electrode capable of a high current density operation of a fuel cell.[Solving means] A gas diffusion electrode including a hydrophilic porous layer having an electrically conductive material and an ion conductive material; and a catalyst layer adjacent to the hydrophilic porous layer, wherein a water transport resistance of the hydrophilic porous layer is smaller than a water transport resistance of the catalyst layer.
摘要翻译：提供能够实现燃料电池的高电流密度运转的气体扩散电极。 [解决方案]一种气体扩散电极，包括具有导电材料和离子导电材料的亲水性多孔层; 以及与亲水性多孔层相邻的催化剂层，其中亲水性多孔层的水输送阻力小于催化剂层的水输送阻力。

7. 发明申请

US20120282537A1 FUEL CELL 审中-公开
标题翻译：燃料电池
公开(公告)号：US20120282537A1
公开(公告)日：2012-11-08
申请号：US13551573
申请日：2012-07-17
申请人： Atsushi OHMA , Yoshitaka ONO , Ryoichi SHIMOI , Kazuya TAJIRI
发明人： Atsushi OHMA , Yoshitaka ONO , Ryoichi SHIMOI , Kazuya TAJIRI
IPC分类号： H01M8/04 , H01M8/10
CPC分类号： H01M4/8642 , H01M4/8636 , H01M8/0258 , H01M8/0267 , H01M8/04029 , H01M8/04089 , H01M8/1004 , H01M2004/8689 , H01M2008/1095 , Y02E60/521
摘要： A fuel cell comprises a cathode catalyst layer and an anode catalyst layer disposed on each surface of an electrolyte membrane, an oxidant gas passage facing the cathode catalyst layer, and a fuel gas passage facing the anode catalyst layer. The cathode catalyst layer contains a metal catalyst. In a region (A), in which the differential electric potential between the cathode catalyst layer and the electrolyte membrane is larger than in another region, the metal catalyst content of the cathode catalyst layer or the specific surface area of the metal catalyst in the form of minute particles is increased, and thus a deterioration in electric power generation efficiency caused by melting of the metal catalyst due to the large differential electric potential is prevented.
摘要翻译：燃料电池包括阴极催化剂层和设置在电解质膜的每个表面上的阳极催化剂层，面对阴极催化剂层的氧化剂气体通道和面向阳极催化剂层的燃料气体通道。阴极催化剂层含有金属催化剂。在其中阴极催化剂层和电解质膜之间的差分电位大于其他区域的区域（A）中，阴极催化剂层的金属催化剂含量或金属催化剂的比表面积为的微小颗粒增加，从而防止了由于差的电位而导致的金属催化剂的熔化引起的发电效率的劣化。

8. 发明申请

US20110250523A1 FUEL CELL 审中-公开
标题翻译：燃料电池
公开(公告)号：US20110250523A1
公开(公告)日：2011-10-13
申请号：US13166544
申请日：2011-06-22
申请人： Atsushi OHMA , Yoshitaka Ono , Ryoichi Shimoi , Kazuya Tajiri
发明人： Atsushi OHMA , Yoshitaka Ono , Ryoichi Shimoi , Kazuya Tajiri
IPC分类号： H01M4/86 , H01M8/10
CPC分类号： H01M4/8642 , H01M4/8636 , H01M8/0258 , H01M8/0267 , H01M8/04029 , H01M8/04089 , H01M8/1004 , H01M2004/8689 , H01M2008/1095 , Y02E60/521
摘要： A fuel cell comprises a cathode catalyst layer and an anode catalyst layer disposed on each surface of an electrolyte membrane, an oxidant gas passage facing the cathode catalyst layer, and a fuel gas passage facing the anode catalyst layer. The cathode catalyst layer contains a metal catalyst. In a region (A), in which the differential electric potential between the cathode catalyst layer and the electrolyte membrane is larger than in another region, the metal catalyst content of the cathode catalyst layer or the specific surface area of the metal catalyst in the form of minute particles is increased, and thus a deterioration in electric power generation efficiency caused by melting of the metal catalyst due to the large differential electric potential is prevented.
摘要翻译：燃料电池包括阴极催化剂层和设置在电解质膜的每个表面上的阳极催化剂层，面对阴极催化剂层的氧化剂气体通道和面向阳极催化剂层的燃料气体通道。阴极催化剂层含有金属催化剂。在其中阴极催化剂层和电解质膜之间的差分电位大于其他区域的区域（A）中，阴极催化剂层的金属催化剂含量或金属催化剂的比表面积为的微小颗粒增加，从而防止了由于差的电位而导致的金属催化剂的熔化引起的发电效率的劣化。

9. 发明授权

US07901836B2 Polymer electrolyte fuel cell 有权
标题翻译：聚合物电解质燃料电池
公开(公告)号：US07901836B2
公开(公告)日：2011-03-08
申请号：US11791679
申请日：2005-11-01
申请人： Atsushi Ohma , Shinji Yamamoto
发明人： Atsushi Ohma , Shinji Yamamoto
IPC分类号： H01M4/02
CPC分类号： H01M4/92 , H01M4/8835 , H01M4/921 , H01M4/926 , H01M8/04223 , H01M8/1004 , H01M8/241 , H01M8/2457
摘要： For a combination of a solid polymer electrolyte membrane 107, catalytic layers 111 and 113 disposed on both sides of the solid polymer electrolyte membrane 107, gas diffusion layers 112 and 114 disposed outside the catalytic layers 111 and 113, and separators 103 and 104 disposed outside the gas diffusion layers 112 and 114, the catalytic layer 113 to be cathode-sided includes a carbon carrier 117 composed of carbon having a mean lattice plane spacing d002 of [002] planes calculated from an X-ray diffraction within a range of 0.343 nm to 0.358 nm, a crystallite size Lc within a range of 3 nm to 10 nm, and a specific surface area within a range of 200 m2/g to 300 m2/g, catalyst particles 115 containing platinum supported on the carbon carrier 117, and an electrolyte 116. According to the invention, a polymer electrolyte fuel cell is allowed to prevent a corroding deterioration of carbon carriers in the cathode catalytic layer in start and stop of the fuel cell, allowing for an enhanced stable output over a long term.
摘要翻译：对于固体高分子电解质膜107，设置在固体高分子电解质膜107两侧的催化剂层111和113，设置在催化剂层111和113外部的气体扩散层112和114以及设置在外部的隔板103和104的组合气体扩散层112和114，作为阴极侧的催化剂层113包括碳载体117，其由具有由0.333nm范围内的X射线衍射计算出的[002]面的平均晶格面间距d002的碳构成至0.358nm，在3nm至10nm的范围内的微晶尺寸Lc，200m 2 / g至300m 2 / g范围内的比表面积，载于碳载体117上的载有铂的催化剂颗粒115，以及电解质116.根据本发明，允许聚合物电解质燃料电池防止燃料电池开始和停止时阴极催化剂层中碳载体的腐蚀变坏，从而增强长期稳定的产量。

10. 发明申请

US20120100461A1 HYDROPHILIC POROUS LAYER FOR FUEL CELLS, GAS DIFFUSION ELECTRODE AND MANUFACTURING METHOD THEREOF, AND MEMBRANE ELECTRODE ASSEMBLY 审中-公开
标题翻译：用于燃料电池的多孔多孔层，气体扩散电极及其制造方法和膜电极组件
公开(公告)号：US20120100461A1
公开(公告)日：2012-04-26
申请号：US13380709
申请日：2010-06-25
申请人： Hiroshi Iden , Atsushi Ohma , Yoshitaka Ono , Kazuyuki Satou , Kei Sakai
发明人： Hiroshi Iden , Atsushi Ohma , Yoshitaka Ono , Kazuyuki Satou , Kei Sakai
IPC分类号： H01M8/04 , B05D5/12
CPC分类号： H01M8/1004 , H01M4/8605 , H01M4/8652 , H01M8/0241 , Y02E60/521 , Y02P70/56
摘要： [Summary][Object] To provide a hydrophilic porous layer for a fuel cell that improves a sub-zero temperature starting ability of the fuel cell.[Solving means] A hydrophilic porous layer comprising electrically conductive material—hydrophilic material aggregates each including hydrophilic materials and electrically conductive materials that intimately contact to one another, the hydrophilic materials being mutually connected to one another to form in the hydrophilic materials a continuous transport path for water, the electrically conductive material—hydrophilic material aggregates forming therebetween a transport path for water vapor, which is characterized in that when it is above −40° C., a water transport resistance Rwater of the water transport path is larger than a water vapor transport resistance Rgas of the water vapor transport path.
摘要翻译：发明内容为了提供一种提高燃料电池的次零温度启动能力的燃料电池用亲水性多孔层。 [解决方案]一种亲水性多孔层，包括导电材料 - 亲水材料聚集体，每个包含亲水材料和彼此紧密接触的导电材料，亲水材料彼此相互连接，以在亲水材料中形成连续传输路径对于水，导电材料 - 亲水材料聚集在其间形成水蒸气的输送路径，其特征在于当其高于-40℃时，水输送路径的水输送阻力Rwater大于水水汽输送路径的蒸汽输送阻力R gas。

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