公开(公告)号：US07470483B2

公开(公告)日：2008-12-30

申请号：US10730256

申请日：2003-12-09

申请人： Akihiko Yoshida ,  Yoshihiro Hori ,  Osamu Sakai ,  Makoto Uchida ,  Eiichi Yasumoto ,  Shinya Kosako

发明人： Akihiko Yoshida ,  Yoshihiro Hori ,  Osamu Sakai ,  Makoto Uchida ,  Eiichi Yasumoto ,  Shinya Kosako

IPC分类号： H01M4/96

CPC分类号： H01M8/1004 ,  H01M4/8605 ,  H01M8/04119

摘要： A carbon fiber woven fabric for use as a gas diffusion layer base material in a polymer electrolyte fuel cell has a surface that is smoothed and further optimized to inhibit non-uniform infiltration of a coating for water-repellent-layer formation, to provide an electrolyte membrane-electrode assembly suitable for operation under a high humidification condition. The gas diffusion layer base material may be a carbon fiber woven fabric, wherein a ratio of the area of gap portions where neither warp thread nor weft thread exists: (10/W−Y)(10/Z−X) to the area of portions where warp thread is crossing weft thread: XY mm2 is in the range of about 1/1500 to about 1/5, where the carbon fiber woven fabric has a warp density of Z threads/cm, a weft density of W threads/cm, a warp thickness of X mm and a weft thickness of Y mm.

摘要翻译： 在聚合物电解质燃料电池中用作气体扩散层基材的碳纤维织物具有平滑化和进一步优化的表面，以抑制用于防水层形成的涂层的不均匀渗透，从而提供电解质 膜 - 电极组件适用于高加湿条件下的操作。 气体扩散层基材可以是碳纤维织物，其中不存在经线和纬纱的间隙部分的面积比（10 / WY）（10 / ZX）与经线部分的面积 横穿纬纱：XY mm2在约1/1500至约1/5的范围内，其中碳纤维织物的经纱密度为Z线/厘米，纬纱密度为W丝/厘米，经纱厚度 X mm，纬纱厚度Y mm。

公开(公告)号：US07455703B2

公开(公告)日：2008-11-25

申请号：US11425191

申请日：2006-06-20

申请人： Makoto Uchida ,  Yasushi Sugawara ,  Eiichi Yasumoto ,  Akihiko Yoshida ,  Junji Morita ,  Masao Yamamoto ,  Shinya Kosako ,  Osamu Sakai ,  Yoshihiro Hori

发明人： Makoto Uchida ,  Yasushi Sugawara ,  Eiichi Yasumoto ,  Akihiko Yoshida ,  Junji Morita ,  Masao Yamamoto ,  Shinya Kosako ,  Osamu Sakai ,  Yoshihiro Hori

IPC分类号： H01M4/82 ,  H01M6/00 ,  H01M8/00 ,  H01M2/00

CPC分类号： H01M4/8605 ,  H01M4/8807 ,  H01M4/8828 ,  H01M4/921 ,  H01M4/926 ,  H01M8/0234 ,  Y02P70/56 ,  Y10T29/49115

摘要： The present invention provides a polymer electrolyte fuel cell having an increased reaction area by forming a gas channel, a proton channel and an electron channel very close to each other inside a catalyst layer. This polymer electrolyte fuel cell includes a hydrogen ion conductive polymer electrolyte membrane; and a pair of electrodes having catalyst layers sandwiching the hydrogen ion conductive polymer electrolyte membrane between them and gas diffusion layers in contact with the catalyst layers, in which the catalyst layer of at least one of the electrodes comprises carbon particles supporting a noble metal catalyst, and the carbon particles include at least two kinds of carbon particles adsorbing a hydrogen ion conductive polymer electrolyte in mutually different dispersed states.

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，提供了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，其具有夹在其间的氢离子导电性高分子电解质膜和与催化剂层接触的气体扩散层的催化剂层，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， 并且碳粒子包含以相互不同的分散状态吸附氢离子导电性高分子电解质的至少2种碳粒子。

公开(公告)号：US07150934B2

公开(公告)日：2006-12-19

申请号：US10508971

申请日：2003-03-25

申请人： Akihiko Yoshida ,  Yoshihiro Hori ,  Makoto Uchida ,  Eiichi Yasumoto ,  Yasuo Takebe ,  Osamu Sakai ,  Shinya Kosako ,  Takeshi Yonamine ,  Masaki Yamauchi ,  Yasushi Sugawara ,  Junji Morita

发明人： Akihiko Yoshida ,  Yoshihiro Hori ,  Makoto Uchida ,  Eiichi Yasumoto ,  Yasuo Takebe ,  Osamu Sakai ,  Shinya Kosako ,  Takeshi Yonamine ,  Masaki Yamauchi ,  Yasushi Sugawara ,  Junji Morita

IPC分类号： H01M4/00

CPC分类号： H01M8/0234 ,  D03D15/00 ,  D03D15/0083 ,  D10B2101/12 ,  D10B2201/24 ,  D10B2321/10 ,  D10B2401/063 ,  D10B2401/16 ,  H01M4/8605 ,  H01M4/92 ,  H01M4/96 ,  H01M8/0247 ,  H01M8/1004 ,  Y02P70/56

摘要： By using a gas diffusion layer for a fuel cell comprising a fabric comprising a warp thread and a weft thread which are made of carbon fiber, wherein the distance X between adjacent intersections where the warp and weft threads cross each other and the thickness Y of the fabric satisfy the equation: 1.4≦X/Y≦3.5, the present invention reduces the surface asperities of the substrate and prevents a micro short-circuit resulting from the piercing of the polymer electrolyte membrane of the fuel cell by the carbon fibers of the fabric so as to improve the characteristics of the fuel cell.In order to further prevent the piercing of the polymer electrolyte membrane by the carbon fibers of the gas diffusion layer substrate, the rough surface of the carbon fabric is smoothed by: (1) applying a clamping pressure of 1 to 20 kgf/cm2 to the contact area between each electrode and each conductive separator plate of the fuel cell; or (2) heating the gas diffusion layer surface before the gas diffusion layer is disposed onto the polymer electrolyte membrane.

摘要翻译： 通过使用包括由碳纤维制成的包括经线和纬纱的织物的燃料电池用气体扩散层，其中，经线和纬线彼此交叉的相邻交点之间的距离X和 织物满足以下等式：1.4 <= X / Y <= 3.5，本发明减小了基板的表面粗糙度，并且防止了燃料电池的聚合物电解质膜被碳纤维刺穿导致的微短路 织物，以改善燃料电池的特性。 为了进一步防止高分子电解质膜被气体扩散层基材的碳纤维刺穿，碳纤维织物的粗糙表面通过以下方式进行平滑化：（1）施加1〜20kgf / cm·SUP > 2 到燃料电池的每个电极和每个导电隔板之间的接触面积; 或者（2）在将气体扩散层配置在高分子电解质膜上之前加热气体扩散层表面。

公开(公告)号：US20060229194A1

公开(公告)日：2006-10-12

申请号：US11425191

申请日：2006-06-20

申请人： Makoto Uchida ,  Yasushi Sugawara ,  Eiichi Yasumoto ,  Akihiko Yoshida ,  Junji Morita ,  Masao Yamamoto ,  Shinya Kosako ,  Osamu Sakai ,  Yoshihiro Hori

发明人： Makoto Uchida ,  Yasushi Sugawara ,  Eiichi Yasumoto ,  Akihiko Yoshida ,  Junji Morita ,  Masao Yamamoto ,  Shinya Kosako ,  Osamu Sakai ,  Yoshihiro Hori

IPC分类号： H01M4/88 ,  B05D5/12

CPC分类号： H01M4/8605 ,  H01M4/8807 ,  H01M4/8828 ,  H01M4/921 ,  H01M4/926 ,  H01M8/0234 ,  Y02P70/56 ,  Y10T29/49115

摘要： The present invention provides a polymer electrolyte fuel cell having an increased reaction area by forming a gas channel, a proton channel and an electron channel very close to each other inside a catalyst layer. This polymer electrolyte fuel cell includes a hydrogen ion conductive polymer electrolyte membrane; and a pair of electrodes having catalyst layers sandwiching the hydrogen ion conductive polymer electrolyte membrane between them and gas diffusion layers in contact with the catalyst layers, in which the catalyst layer of at least one of the electrodes comprises carbon particles supporting a noble metal catalyst, and the carbon particles include at least two kinds of carbon particles adsorbing a hydrogen ion conductive polymer electrolyte in mutually different dispersed states.

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，提供了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，其具有夹在其间的氢离子导电性高分子电解质膜和与催化剂层接触的气体扩散层的催化剂层，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高分子电解质的至少2种碳粒子。

公开(公告)号：US07201993B2

公开(公告)日：2007-04-10

申请号：US10089814

申请日：2001-08-03

申请人： Makoto Uchida ,  Yasushi Sugawara ,  Eiichi Yasumoto ,  Akihiko Yoshida ,  Junji Morita ,  Masao Yamamoto ,  Shinya Kosako ,  Osamu Sakai ,  Yoshihiro Hori

发明人： Makoto Uchida ,  Yasushi Sugawara ,  Eiichi Yasumoto ,  Akihiko Yoshida ,  Junji Morita ,  Masao Yamamoto ,  Shinya Kosako ,  Osamu Sakai ,  Yoshihiro Hori

IPC分类号： H01M4/00

CPC分类号： H01M4/8605 ,  H01M4/8807 ,  H01M4/8828 ,  H01M4/921 ,  H01M4/926 ,  H01M8/0234 ,  Y02P70/56 ,  Y10T29/49115

摘要： The present invention provides a polymer electrolyte fuel cell having an increased reaction area by forming a gas channel, a proton channel and an electron channel very close to each other inside a catalyst layer. This polymer electrolyte fuel cell includes a hydrogen ion conductive polymer electrolyte membrane; and a pair of electrodes having catalyst layers sandwiching the hydrogen ion conductive polymer electrolyte membrane between them and gas diffusion layers in contact with the catalyst layers, in which the catalyst layer of at least one of the electrodes comprises carbon particles supporting a noble metal catalyst, and the carbon particles include at least two kinds of carbon particles adsorbing a hydrogen ion conductive polymer electrolyte in mutually different dispersed states.

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，提供了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，其具有夹在其间的氢离子导电性高分子电解质膜和与催化剂层接触的气体扩散层的催化剂层，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， 并且碳粒子包含以相互不同的分散状态吸附氢离子导电性高分子电解质的至少2种碳粒子。

公开(公告)号：US20050142430A1

公开(公告)日：2005-06-30

申请号：US10508971

申请日：2003-03-25

申请人： Akihiko Yoshida ,  Yoshihiro Hori ,  Makoto Uchida ,  Eiichi Yasumoto ,  Yasuo Takebe ,  Osamu Sakai ,  Shinya Kosako ,  Takeshi Yonamine ,  Masaki Yamauchi ,  Yasushi Sugawara ,  Junji Morita

发明人： Akihiko Yoshida ,  Yoshihiro Hori ,  Makoto Uchida ,  Eiichi Yasumoto ,  Yasuo Takebe ,  Osamu Sakai ,  Shinya Kosako ,  Takeshi Yonamine ,  Masaki Yamauchi ,  Yasushi Sugawara ,  Junji Morita

IPC分类号： D03D15/00 ,  D03D15/12 ,  H01M4/86 ,  H01M4/88 ,  H01M4/92 ,  H01M4/96 ,  H01M4/94 ,  H01M8/10

CPC分类号： H01M8/0234 ,  D03D15/00 ,  D03D15/0083 ,  D10B2101/12 ,  D10B2201/24 ,  D10B2321/10 ,  D10B2401/063 ,  D10B2401/16 ,  H01M4/8605 ,  H01M4/92 ,  H01M4/96 ,  H01M8/0247 ,  H01M8/1004 ,  Y02P70/56

摘要： By using a gas diffusion layer for a fuel cell comprising a fabric comprising a warp thread and a weft thread which are made of carbon fiber, wherein the distance X between adjacent intersections where the warp and weft threads cross each other and the thickness Y of the fabric satisfy the equation: 1.4≦X/Y≦3.5, the present invention reduces the surface asperities of the substrate and prevents a micro short-circuit resulting from the piercing of the polymer electrolyte membrane of the fuel cell by the carbon fibers of the fabric so as to improve the characteristics of the fuel cell. In order to further prevent the piercing of the polymer electrolyte membrane by the carbon fibers of the gas diffusion layer substrate, the rough surface of the carbon fabric is smoothed by: (1) applying a clamping pressure of 1 to 20 kgf/cm2 to the contact area between each electrode and each conductive separator plate of the fuel cell; or (2) heating the gas diffusion layer surface before the gas diffusion layer is disposed onto the polymer electrolyte membrane.

摘要翻译： 通过使用包括由碳纤维制成的包括经线和纬纱的织物的燃料电池用气体扩散层，其中，经线和纬线彼此交叉的相邻交点之间的距离X和 织物满足以下等式：1.4 <= X / Y <= 3.5，本发明减小了基板的表面粗糙度，并且防止了燃料电池的聚合物电解质膜被碳纤维刺穿导致的微短路 织物，以改善燃料电池的特性。 为了进一步防止高分子电解质膜被气体扩散层基板的碳纤维刺穿，碳纤维织物的粗糙表面通过以下方式进行平滑化：（1）施加1〜20kgf / cm·SUP > 2 到燃料电池的每个电极和每个导电隔板之间的接触面积; 或者（2）在将气体扩散层配置在高分子电解质膜上之前加热气体扩散层表面。

公开(公告)号：US06977234B2

公开(公告)日：2005-12-20

申请号：US10240433

申请日：2002-01-16

申请人： Shinya Kosako ,  Masato Hosaka ,  Makoto Uchida

发明人： Shinya Kosako ,  Masato Hosaka ,  Makoto Uchida

IPC分类号： H01M4/86 ,  H01M4/88 ,  H01M4/92 ,  H01M8/02 ,  H01M8/10 ,  B05D5/12

CPC分类号： H01M4/8605 ,  H01M4/8652 ,  H01M4/926 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1081 ,  H01M2008/1095 ,  Y02P70/56

摘要： In order to obtain an electrolyte membrane-electrode assembly using a thin electrolyte membrane, the present invention provides a production method of an electrolyte membrane-electrode assembly comprising: a step of forming a hydrogen ion-conductive polymer electrolyte membrane on a base material; a treatment step of reducing adhesion force between the base material and the hydrogen ion-conductive polymer electrolyte membrane; a step of separating and removing the base material; and a step of bonding a catalyst layer and a gas diffusion layer onto the hydrogen ion-conductive polymer electrolyte membrane, and, in order to obtain an electrolyte membrane-electrode assembly which has a catalyst without clogging and is excellent in electrode characteristics, the present invention provides a production method of an electrolyte membrane-electrode assembly comprising: a step of bonding a hydrogen ion-conductive polymer electrolyte membrane and a catalyst layer via a coating layer; a step of removing the coating layer; and a step of obtaining an electrolyte membrane-electrode assembly by forming a gas diffusion layer on the catalyst layer.

摘要翻译： 为了获得使用薄电解质膜的电解质膜 - 电极组件，本发明提供一种电解质膜 - 电极组件的制造方法，包括：在基材上形成氢离子传导性高分子电解质膜的工序; 降低基材与氢离子传导性聚合物电解质膜之间的粘合力的处理工序; 分离除去基材的工序; 以及将催化剂层和气体扩散层接合到氢离子导电性高分子电解质膜上的工序，为了得到不堵塞而电极特性优异的催化剂的电解质膜 - 电极接合体， 本发明提供一种电解质膜 - 电极组件的制造方法，包括：通过涂层将氢离子传导性聚合物电解质膜和催化剂层接合的工序; 去除涂层的步骤; 以及通过在催化剂层上形成气体扩散层来获得电解质膜 - 电极组件的步骤。

公开(公告)号：US20070099040A1

公开(公告)日：2007-05-03

申请号：US10561386

申请日：2004-08-24

申请人： Junji Morita ,  Makoto Uchida ,  Yasushi Sugawara ,  Takayuki Urata ,  Shinya Kosako ,  Takahiro Umeda ,  Soichi Shibata ,  Yoichiro Tsuji ,  Masataka Ozeki ,  Akinari Nakamura ,  Yoshikazu Tanaka

发明人： Junji Morita ,  Makoto Uchida ,  Yasushi Sugawara ,  Takayuki Urata ,  Shinya Kosako ,  Takahiro Umeda ,  Soichi Shibata ,  Yoichiro Tsuji ,  Masataka Ozeki ,  Akinari Nakamura ,  Yoshikazu Tanaka

IPC分类号： H01M8/04

CPC分类号： H01M8/0606 ,  H01M8/04231 ,  H01M8/04365 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04425 ,  H01M8/04559 ,  H01M8/04649 ,  H01M8/04746 ,  H01M8/04776 ,  H01M8/04955 ,  H01M2008/1095

摘要： Problems of acceleration of drying of electrolyte membrane and local reaction, etc. can be properly coped with to attain the stabilization of performance of fuel cell. There are provided a fuel cell 121 which generates electric power from a fuel gas and an oxidizing agent gas, a fuel gas feed pipe 161 and a first switch valve 129 as fuel gas supplying unit which supplies the said fuel gas into the said fuel cell on the anode side thereof, an oxidizing gas supplying pipe 162 and a second cut-off valve 131 as oxidizing agent gas supplying unit which supplies the said oxidizing agent into the said fuel cell on the cathode side thereof, a raw material gas supplying pipe 151 and a third switch valve 143 as raw material gas supplying unit which supplies raw material of the said fuel gas into the fuel cell and a control portion 127 which controls the supply of the said fuel gas, the supply of the said oxidizing agent and the supply of the said raw material and the control portion 127 controls during the starting of electricity generation of the fuel cell 121 such that the said raw material gas supplying unit purges the fuel cell 121 at least on the cathode side thereof with the said raw material gas before the oxidizing agent gas supplying unit and the fuel gas supplying unit supply the fuel gas and the said oxidizing agent gas into the fuel cell 121, respectively.

摘要翻译： 可以适当应对电解质膜干燥加速和局部反应等问题，以达到燃料电池性能的稳定。 设置有从燃料气体和氧化剂气体产生电力的燃料电池121，作为燃料气体供给单元的燃料气体供给管161和第一切换阀129，将燃料气体供给到所述燃料电池中 其阳极侧，氧化剂气体供给管162和作为氧化剂气体供给单元的第二截止阀131，其将所述氧化剂供给到阴极侧的所述燃料电池中，原料气体供给管151和 作为将燃料气体的原料供给燃料电池的原料气体供给部的第三切换阀143以及控制部127，控制部127控制所述燃料气体的供给，所述氧化剂的供给和供给 所述原料和控制部127在燃料电池121的发电开始期间进行控制，使得所述原料气体供给单元至少在阴极上清除燃料电池121 在氧化剂气体供给单元和燃料气体供给单元之间分别将燃料气体和所述氧化剂气体供应到燃料电池121中的同时与所述原料气体一起。

公开(公告)号：US20070003805A1

公开(公告)日：2007-01-04

申请号：US10556466

申请日：2004-08-24

申请人： Yasushi Sugawara ,  Junji Morita ,  Makoto Uchida ,  Takayuki Urata ,  Shinya Kosako ,  Takahiro Umeda ,  Soichi Shibata ,  Masataka Ozeki ,  Akinari Nakamura ,  Yoshikazu Tanaka ,  Yoichiro Tsuji

发明人： Yasushi Sugawara ,  Junji Morita ,  Makoto Uchida ,  Takayuki Urata ,  Shinya Kosako ,  Takahiro Umeda ,  Soichi Shibata ,  Masataka Ozeki ,  Akinari Nakamura ,  Yoshikazu Tanaka ,  Yoichiro Tsuji

IPC分类号： H01M8/04

CPC分类号： H01M8/04231 ,  H01M8/04089 ,  H01M8/04201 ,  H01M8/04365 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04559 ,  H01M8/04619 ,  H01M8/04753 ,  H01M8/04955 ,  H01M8/0606 ,  H01M8/0662 ,  H01M2008/1095

摘要： The deterioration of the catalyst can occur during prolonged storage, occasionally causing the deterioration of the durability of the fuel cell. There are provided a stack 38 which generates electric power from a fuel gas and an oxidizing agent, a fuel gas pipe 37 and an on-off valve 49 as fuel gas supplying unit of supplying the fuel gas into the fuel cell on the anode side thereof, an oxidizing agent supplying unit an oxidizing agent gas pipe 40a and an on-off valve 57 as oxidizing agent gas supplying unit of supplying the oxidizing agent into the fuel cell on the cathode side thereof, a raw material gas pipe 33, a bypass pipe 55 and dispensing valves 56, 60 as raw material gas supplying unit of supplying the raw material of the fuel gas into the fuel cell and a control portion 44 of controlling the supply of the fuel gas, the supply of the oxidizing agent and the supply of the raw material, wherein after the switching-off of the output of electric power of the fuel cell, the fuel gas supplying unit suspends the supply of the fuel gas into the fuel cell on the anode side thereof, the oxidizing agent gas supplying unit suspends the supply of the oxidizing agent into the fuel cell on the cathode side thereof and the raw material gas supplying unit supplies the raw material into the fuel cell from the inlet side of the cathode to purge the fuel cell on the cathode side thereof.

摘要翻译： 催化剂的劣化可以在长时间储存​​期间发生，有时会导致燃料电池的耐久性恶化。 设置有从燃料气体和氧化剂产生电力的堆叠件38，作为将燃料气体供给到其阳极侧的燃料电池的燃料气体供给单元的燃料气体管37和开关阀49 氧化剂供给部，氧化剂气体配管40a和开闭阀57，作为将氧化剂供给到阴极侧的燃料电池的氧化剂气体供给部，原料气体管33，旁路 作为将燃料气体的原料供给到燃料电池的原料气体供给部的管55和分配阀56,60以及控制燃料气体的供给，氧化剂的供给和供给的控制部44 所述燃料气体供给部在所述燃料电池的电力输出切断后，将所述燃料气体的供给暂停在所述燃料电池的阳极侧，所述氧化剂气体供给部 怀疑 将氧化剂供给到阴极侧的燃料电池中，原料气体供给单元从阴极的入口侧将原料供给燃料电池，以在其阴极侧吹扫燃料电池。

公开(公告)号：US08765314B2

公开(公告)日：2014-07-01

申请号：US10556466

申请日：2004-08-24

申请人： Yasushi Sugawara ,  Junji Morita ,  Makoto Uchida ,  Takayuki Urata ,  Shinya Kosako ,  Takahiro Umeda ,  Soichi Shibata ,  Masataka Ozeki ,  Akinari Nakamura ,  Yoshikazu Tanaka ,  Yoichiro Tsuji

发明人： Yasushi Sugawara ,  Junji Morita ,  Makoto Uchida ,  Takayuki Urata ,  Shinya Kosako ,  Takahiro Umeda ,  Soichi Shibata ,  Masataka Ozeki ,  Akinari Nakamura ,  Yoshikazu Tanaka ,  Yoichiro Tsuji

IPC分类号： H01M8/04 ,  H01M8/10 ,  H01M8/06

CPC分类号： H01M8/04231 ,  H01M8/04089 ,  H01M8/04201 ,  H01M8/04365 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04559 ,  H01M8/04619 ,  H01M8/04753 ,  H01M8/04955 ,  H01M8/0606 ,  H01M8/0662 ,  H01M2008/1095

摘要： A fuel cell system includes a fuel cell; a fuel gas supplying unit supplying the fuel gas into the fuel cell on the anode side thereof; an oxidizing agent gas supplying unit supplying the oxidizing agent gas into the fuel cell on the cathode side thereof; a raw material gas supplying unit supplying the raw material gas into the fuel cell; and a controlling unit controlling the supply of the fuel gas, the oxidizing agent gas and the raw material gas. After switching the output of electric power or the fuel cell off, the fuel gas supplying unit suspends the supply of the fuel gas, the oxidizing agent gas supplying unit suspends the supply of the oxidizing agent gas and the raw material gas supplying unit supplies the raw material gas into the fuel cell to purge the fuel cell on the cathode side.

摘要翻译： 燃料电池系统包括燃料电池; 燃料气体供给单元，其将燃料气体供给到其阳极侧的燃料电池中; 氧化剂气体供给单元，其将氧化剂气体供给到阴极侧的燃料电池中; 将原料气体供给到燃料电池中的原料气体供给部; 以及控制燃料气体，氧化剂气体和原料气体的供给的控制单元。 在切断电力输出或燃料电池关闭后，燃料气体供给单元暂停燃料气体的供给，氧化剂气体供给单元暂停氧化剂气体的供给，原料气体供给单元供给原料 将材料气体进入燃料电池以净化阴极侧的燃料电池。