-
公开(公告)号：EP1357617A4
公开(公告)日：2008-03-26
申请号：EP02702748
申请日：2002-03-05
发明人： YASUMOTO EIICHI , YOSHIDA AKIHIKO , UCHIDA MAKOTO , MORITA JUNJI , SUGAWARA YASUSHI , GYOTEN HISAAKI , YAMAMOTO MASAO , SAKAI OSAMU , NIIKURA JUNJI
CPC分类号： H01M4/8828 , H01M4/8605 , H01M4/8807 , H01M4/8882 , H01M4/926 , H01M8/1004 , H01M2300/0082
摘要： Because of its inability to uniformly control water content over the entire surface of a membrane electrode joining element, a polyelectrolyte fuel cell is difficult to keep a constant voltage over an extended time. A conductive polymer layer consisting of conductive particles and a polymer material is formed on the top of a porous material of carbon fibers, and a catalyst layer consisting of platinum-carrying carbon particles is disposed on the conductive polymer layer to form a gas diffusion electrode. The conductive polymer layer has conductive particles different in particle size mixed therein, with the mixed amount of conductive particles small in particle size decreasing from one end toward the other end of the gas diffusion electrode.
-
公开(公告)号：EP1383184A4
公开(公告)日：2008-04-16
申请号：EP02720565
申请日：2002-04-22
发明人： SAKAI OSAMU , NIIKURA JUNJI , KANBARA TERUHISA , YAMAMOTO MASAO , YOSHIDA AKIHIKO , UCHIDA MAKOTO , YASUMOTO EIICHI , MORITA JUNJI , SUGAWARA YASUSHI
CPC分类号： H01M4/8807 , H01M4/8605 , H01M4/8821 , H01M8/04291 , H01M8/1004 , Y02P70/56
摘要： The present invention provides an electrode for a fuel cell, which prevents electrode exfoliation at a manufacturing process by optimizing a water repellent material to be added to a gas diffusion layer, and which has a high discharge performance at a low cost. This electrode comprises a gas diffusion layer and a catalyst layer formed at a surface thereof to contact a polymer electrolyte membrane, wherein the gas diffusion layer contains a fibrillated water repellent material, and is subjected to heat treatment at a temperature of the melting point or below thereof.
-
公开(公告)号：EP1265303A4
公开(公告)日：2007-01-24
申请号：EP01908367
申请日：2001-03-06
发明人： YAMAMOTO MASAO , NIIKURA JUNJI , HASE NOBUHIRO , HATOH KAZUHITO , GYOTEN HISAAKI , OHARA HIDEO , KANBARA TERUHISA , YAMAZAKI TATSUTO
CPC分类号： H01M8/0226 , H01M8/0213 , H01M8/026 , H01M8/0265 , H01M8/0267 , H01M8/04007 , H01M8/04119 , H01M8/04291 , Y02P70/56
摘要： The present invention relates to a polymer electrolyte fuel cell comprising: an electrolyte membrane-electrode assembly including an anode, a cathode and a polymer electrolyte membrane interposed therebetween; an anode-side conductive separator plate having a gas flow channel for supplying a fuel gas to the anode; and a cathode-side conductive separator plate having a gas flow channel for supplying an oxidant gas to the cathode. A conductive separator plate made of carbon has poor wettability with water. This has posed the disadvantage that variations in performance are induced by nonuniform gas distribution among cells due to the accumulation of product water or humidifying water in the gas flow channel on the surface of the separator plate. The present invention employs a conductive separator plate comprising a conductive carbon having a hydrophilic functional group, at least in a portion of the gas flow channels, thereby preventing water from accumulating in the gas flow channels.
-
公开(公告)号：EP1487042A4
公开(公告)日：2007-09-19
申请号：EP03712724
申请日：2003-03-18
发明人： MIYAUCHI SHINJI , UEDA TETSUYA , HARADA TERUMARU , OZEKI MASATAKA , YAMAMOTO MASAO , NAKAMURA AKINARI , TANAKA YOSHIKAZU
CPC分类号： H01M8/04022 , H01M8/04007 , H01M8/04029 , H01M8/04052 , H01M8/04268 , H01M8/04365 , H01M8/0612 , H01M8/0668
摘要： It has been conventional that, when abnormality occurs in a device, the conditional operation of the device is further continued while neglecting the abnormality temporarily on condition that remedial action taken later by service staff. There has been no simple method to quickly remove slight failures, etc. included in the abnormality. A fuel cell power generation system comprises a fuel cell (21), fuel gas supply means (22), oxidizing agent gas supply means (34), condition detection means (42) for measuring the temperature of the fuel gas supply means (22), operation control means (47) for detecting abnormality of a specific function of the fuel cell supply means (22) using the result of detection by the condition detection means (42) and conducting operation control in an operation mode corresponding to the content of the abnormality, and operation mode switching means (44) for switching the operation mode to a mode corresponding to the content of the abnormality.
-
公开(公告)号：EP1306913A4
公开(公告)日：2006-03-22
申请号：EP01954442
申请日：2001-08-03
发明人： UCHIDA MAKOTO , SUGAWARA YASUSHI , YASUMOTO EIICHI , YOSHIDA AKIHIKO , MORITA JUNJI , YAMAMOTO MASAO , KOSAKO SHINYA , SAKAI OSAMU , HORI YOSHIHIRO
CPC分类号： H01M4/8605 , H01M4/8807 , H01M4/8828 , H01M4/921 , H01M4/926 , H01M8/0234 , Y02P70/56 , Y10T29/49115
摘要： A polyelectrolyte fuel cell having a gas channel, a proton channel and an electron channel formed in the vicinity of a pole in a catalyst layer to increase a reaction area, and comprising a hydrogen ion conductive polyelectrolyte film, and a pair of electrodes each having a catalyst layer sandwiching the hydrogen ion conductive polyelectrolyte film and a gas diffusion layer in contact with the catalyst layer, wherein the catalyst layer of at least one electrode contains carbon particles each supporting a noble-metal catalyst, and the carbon particles consist of at least two types of carbon particles being in mutually different dispersion conditions and having a hydrogen ion conductive polyelectrolyte adsorbed thereto.
摘要翻译： 本发明通过在催化剂层内形成非常接近的气体通道，质子通道和电子通道来提供具有增加的反应面积的聚合物电解质燃料电池。 该聚合物电解质燃料电池包括氢离子导电聚合物电解质膜; 以及一对电极，其具有将氢离子导电性聚合物电解质膜夹在其间的催化剂层和与催化剂层接触的气体扩散层，其中，至少一个电极的催化剂层包含负载贵金属催化剂的碳粒子， 并且所述碳粒子包含以相互不同的分散状态吸附氢离子导电性聚合物电解质的至少2种碳粒子。
-
-
-
-
搜索结果
5 条记录 (耗时 0.012 秒)
