公开(公告)号：US20130189596A1

公开(公告)日：2013-07-25

申请号：US13825902

申请日：2011-09-23

申请人： Shuya Kawahara ,  Manabu Kato ,  Hideyuki Kumei

发明人： Shuya Kawahara ,  Manabu Kato ,  Hideyuki Kumei

IPC分类号： H01M8/04 ,  G01R31/36

CPC分类号： H01M8/04313 ,  G01R31/3842 ,  H01M8/04126 ,  H01M8/04358 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04679 ,  H01M8/04731 ,  H01M8/04753 ,  H01M8/0485 ,  H01M8/04992 ,  H01M2008/1095

摘要： A fuel cell system includes a fuel cell; a voltage measuring portion that measures a voltage of the fuel cell; an electric current adjusting portion that adjusts an electric current flowing in the fuel cell; an electric current-voltage characteristic information obtaining portion that controls the electric current adjusting portion to change the electric current, and obtains electric current-voltage characteristic information that is information indicating a correspondence relation between an electric current value and a voltage value measured by the voltage measuring portion; and a negative voltage cause determining portion that determines, if the voltage of the fuel cell is a negative voltage, a cause of the negative voltage of the fuel cell, based on the obtained electric current-voltage characteristic information.

摘要翻译： 燃料电池系统包括燃料电池; 测量燃料电池的电压的电压测量部分; 调节在燃料电池中流动的电流的电流调节部; 电流 - 电压特性信息获取部分，其控制电流调节部分改变电流，并且获得电流 - 电压特性信息，该电流 - 电压特性信息是指示电流值和由电压测量的电压值之间的对应关系的信息 测量部分; 以及负电压原因确定部，其基于所获得的电流 - 电压特性信息，确定燃料电池的电压是否为负电压，导致燃料电池的负电压的原因。

公开(公告)号：US20130059215A1

公开(公告)日：2013-03-07

申请号：US13583984

申请日：2011-05-25

申请人： Shuya Kawahara ,  Manabu Kato ,  Hideyuki Kumei

发明人： Shuya Kawahara ,  Manabu Kato ,  Hideyuki Kumei

IPC分类号： H01M8/04 ,  H01M8/06

CPC分类号： H01M8/04589 ,  H01M8/0432 ,  H01M8/04552 ,  H01M8/04559 ,  H01M8/04649 ,  H01M8/04679 ,  H01M8/04768 ,  H01M8/04835 ,  H01M8/0494 ,  H01M8/04955 ,  H01M8/04992 ,  H01M2008/1095 ,  Y02E60/50

摘要： A fuel cell system and a control method therefor are provided. The fuel cell system includes: a fuel cell formed of a plurality of stacked power generating elements; a cell voltage measuring unit detecting negative voltage in any one of the power generating elements; a control unit controlling electric power output from the fuel cell; and an accumulated current value measuring unit measuring an accumulated current value obtained by time integration of current output from the fuel cell. The control unit prestores a correlation between accumulated current values and current densities that are allowable for the fuel cell in a period during which negative voltage is generated. When negative voltage has been detected, the control unit executes output restricting process of restricting electric power output from the fuel cell so as to fall within an operation allowable range defined by the accumulated current values and current densities of the correlation.

摘要翻译： 提供燃料电池系统及其控制方法。 燃料电池系统包括：由多个堆叠的发电元件形成的燃料电池; 电池电压测量单元，检测任一发电元件中的负电压; 控制单元，控制从所述燃料电池输出的电力; 以及累积电流值测量单元，测量通过从燃料电池输出的电流的时间积分获得的累积电流值。 控制单元在生成负电压的时段期间预先存储在燃料电池中允许的累积电流值和电流密度之间的相关性。 当检测到负电压时，控制单元执行限制从燃料电池输出的电力的输出限制处理，使其落入由相关的累积电流值和电流密度所限定的运行允许范围内。

公开(公告)号：US20120045705A1

公开(公告)日：2012-02-23

申请号：US13057131

申请日：2010-06-25

申请人： Hideyuki Kumei ,  Shuya Kawahara

发明人： Hideyuki Kumei ,  Shuya Kawahara

IPC分类号： H01M8/04

CPC分类号： H01M8/04902 ,  H01M8/04552 ,  H01M8/04582 ,  H01M8/04992

摘要： A fuel cell system includes a first power generation module configured to have a power generation assembly including a catalyst, an anode-side non-power generation structure placed in contact with the power generation assembly, and a cathode-side non-power generation structure placed on opposite to the power generation assembly across the power generation assembly, at least one second power generation module placed adjacent to the first power generation module, and a current regulation circuit connected in parallel to each of the power generation modules. The fuel cell system has a current controller configured to, when a cell voltage representing a voltage between the anode-side non-power generation structure and the cathode-side non-power generation structure is not higher than a preset first voltage that is a negative voltage, control the current regulator connected in parallel to the first power generation module to increase an amount of electric current flowing in a first direction from the anode-side non-power generation structure to the cathode-side non-power generation structure.

摘要翻译： 燃料电池系统包括：第一发电模块，被配置为具有包括催化剂的发电组件，与所述发电组件接触放置的阳极侧非发电结构以及放置在所述发电组件中的阴极侧非发电结构 在与所述发电组件的发电组件相对的位置上，与所述第一发电模块相邻放置的至少一个第二发电模块以及与所述发电模块并联连接的电流调节电路。 燃料电池系统具有电流控制器，其被配置为当表示阳极侧非发电结构和阴极侧非发电结构之间的电压的电池电压不高于作为负值的预设第一电压时 控制与第一发电模块并联连接的电流调节器，以增加从阳极侧非发电结构向阴极侧非发电结构沿第一方向流动的电流量。

公开(公告)号：US20150221966A1

公开(公告)日：2015-08-06

申请号：US14419339

申请日：2012-08-09

申请人： Shuya Kawahara ,  Akito Kawasumi

发明人： Shuya Kawahara ,  Akito Kawasumi

IPC分类号： H01M8/04 ,  H01M8/24

CPC分类号： H01M8/04544 ,  H01M8/04432 ,  H01M8/04552 ,  H01M8/2404 ,  H01M8/241 ,  H01M8/2483 ,  Y02E60/50 ,  Y02P70/56

摘要： In order to define the power generation performance of a monitor cell, a manufacturing method of a fuel cell including a plurality of ordinary cells and a monitor cell configured to have a greater pressure loss of hydrogen gas than a pressure loss of the ordinary cell comprises the steps of: (a) specifying an upper limit voltage in a voltage range of the monitor cell; (b) specifying a lower limit voltage in the voltage range of the monitor cell; (c) determining an upper limit value and a lower limit value in a range of pressure loss of the hydrogen gas in the monitor cell, based on the upper limit voltage and the lower limit voltage; and (d) manufacturing the monitor cell, such that the pressure loss of the hydrogen gas in the monitor cell is limited to the range of pressure loss.

摘要翻译： 为了定义监视器单元的发电性能，包括多个普通单元的燃料电池的制造方法以及配置为具有比普通电池的压力损失更大的氢气压力损失的监视单元包括 步骤：（a）指定监视器单元的电压范围内的上限电压; （b）指定监视器单元的电压范围内的下限电压; （c）基于上限电压和下限电压，确定监测电池中的氢气压力损失范围内的上限值和下限值; 和（d）制造监视器单元，使得监视器单元中的氢气的压力损失被限制在压力损失的范围内。

公开(公告)号：US20130130140A1

公开(公告)日：2013-05-23

申请号：US13125770

申请日：2010-08-02

申请人： Manabu Kato ,  Michihito Tanaka ,  Shuya Kawahara

发明人： Manabu Kato ,  Michihito Tanaka ,  Shuya Kawahara

IPC分类号： H01M8/04

CPC分类号： H01M8/04225 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/0432 ,  H01M8/0444 ,  H01M8/04559 ,  H01M8/04679 ,  H01M8/242 ,  H01M2008/1095 ,  Y02E60/50

摘要： A fuel cell system having a fuel cell includes a power generation-time gas supplier that supplies hydrogen-containing fuel gas to an anode of the fuel cell and supplies an oxygen-containing oxidizing gas to a cathode of the fuel cell during power generation of the fuel cell. The fuel cell system also includes an anode potential rise information acquirer that acquires anode potential rise information, which represents information regarding a status of an anode potential rise of the fuel cell, after termination of supplies of the fuel gas and the oxidizing gas by the power generation-time gas supplier. The fuel cell system further includes an anode morphology variation deriver that derives an anode morphology variation representing a degree of a morphology change of a catalyst metal included in the anode, based on the anode potential rise information.

摘要翻译： 具有燃料电池的燃料电池系统包括发电时气体供给器，其向所述燃料电池的阳极供给含氢燃料气体，并且在所述燃料电池的发电期间向所述燃料电池的阴极供给含氧氧化气体 燃料电池。 燃料电池系统还包括阳极电位上升信息获取器，该阳极电位上升信息获取器在燃料气体和氧化气体通过电力供应终止之后获取阳极电位上升信息，其表示关于燃料电池的阳极电位上升的状态的信息 发电时间气体供应商。 燃料电池系统还包括阳极形态变化导流器，其基于阳极电位上升信息导出代表阳极中包括的催化剂金属的形态变化程度的阳极形态变化。

公开(公告)号：US20130089798A1

公开(公告)日：2013-04-11

申请号：US13702242

申请日：2010-06-17

申请人： Sho Usami ,  Yasushi Araki ,  Kazunori Shibata ,  Shuya Kawahara ,  Tomohiro Ogawa

发明人： Sho Usami ,  Yasushi Araki ,  Kazunori Shibata ,  Shuya Kawahara ,  Tomohiro Ogawa

IPC分类号： H01M8/04

CPC分类号： H01M8/04291 ,  H01M8/0267 ,  H01M8/04029 ,  H01M8/04156 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04253 ,  H01M8/04302 ,  H01M8/2483 ,  H01M2008/1095 ,  Y02E60/50

摘要： A fuel cell system 10 removes water retaining in a cathode catalyst layer 217 in a fuel cell 20, after a start-up of the fuel cell 20 and before feed of coolant to the fuel cell 20.

摘要翻译： 燃料电池系统10在燃料电池20启动之后以及在向燃料电池20供给冷却剂之前，去除在燃料电池20中的阴极催化剂层217中保留的水。

公开(公告)号：US08415061B2

公开(公告)日：2013-04-09

申请号：US13510436

申请日：2010-11-25

申请人： Shuya Kawahara ,  Manabu Kato ,  Hideyuki Kumei ,  Tomoaki Uchiyama ,  Tsuyoshi Maruo

发明人： Shuya Kawahara ,  Manabu Kato ,  Hideyuki Kumei ,  Tomoaki Uchiyama ,  Tsuyoshi Maruo

IPC分类号： H01M8/06 ,  H01M8/04

CPC分类号： H01M8/04828 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04253 ,  H01M8/04302 ,  H01M8/04492 ,  H01M8/04589 ,  H01M8/0491 ,  H01M8/04955 ,  H01M8/04992 ,  H01M2008/1095

摘要： A fuel cell system includes a fuel cell; a cathode inflow water amount determining portion that determines a cathode inflow water amount after activation of the fuel cell; an obtaining portion that obtains a pore total volume of the cathode side catalyst layer; an operating condition determining portion that determines, based on the determined cathode inflow water amount and the obtained pore total volume, an operating condition of the fuel cell that includes a current value of current that flows through the fuel cell and an upper limit value of a period of time for which the current flows, for bringing the cathode inflow water amount within a range that is equal to or less than the pore total volume; and an adjusting portion that adjusts the current value and the period of time for which current of the current value flows, such that the determined operating condition is realized.

摘要翻译： 燃料电池系统包括燃料电池; 阴极流入水量确定部，确定燃料电池的启动后的阴极流入水量; 获得阴极侧催化剂层的孔总体积的获得部分; 操作条件确定部分，其基于所确定的阴极流入水量和所获得的孔隙总体积，确定包括流过燃料电池的电流的当前值和燃料电池的上限值的燃料电池的运行状态 电流流过的时间段，用于使阴极流入水量在等于或小于孔总体积的范围内; 以及调整部，其调整当前值的电流值和电流的电流流过的时间段，使得实现所确定的运行状态。

公开(公告)号：US08895200B2

公开(公告)日：2014-11-25

申请号：US13125770

申请日：2010-08-02

申请人： Manabu Kato ,  Michihito Tanaka ,  Shuya Kawahara

发明人： Manabu Kato ,  Michihito Tanaka ,  Shuya Kawahara

IPC分类号： H01M8/04 ,  H01M8/10

CPC分类号： H01M8/04225 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/0432 ,  H01M8/0444 ,  H01M8/04559 ,  H01M8/04679 ,  H01M8/242 ,  H01M2008/1095 ,  Y02E60/50

摘要： A fuel cell system having a fuel cell includes a power generation-time gas supplier that supplies hydrogen-containing fuel gas to an anode of the fuel cell and supplies an oxygen-containing oxidizing gas to a cathode of the fuel cell during power generation of the fuel cell. The fuel cell system also includes an anode potential rise information acquirer that acquires anode potential rise information, which represents information regarding a status of an anode potential rise of the fuel cell, after termination of supplies of the fuel gas and the oxidizing gas by the power generation-time gas supplier. The fuel cell system further includes an anode morphology variation deriver that derives an anode morphology variation representing a degree of a morphology change of a catalyst metal included in the anode, based on the anode potential rise information.

摘要翻译： 具有燃料电池的燃料电池系统包括发电时气体供给器，其向所述燃料电池的阳极供给含氢燃料气体，并且在所述燃料电池的发电期间向所述燃料电池的阴极供给含氧氧化气体 燃料电池。 燃料电池系统还包括阳极电位上升信息获取器，该阳极电位上升信息获取器在燃料气体和氧化气体通过电力供应终止之后获取阳极电位上升信息，其表示关于燃料电池的阳极电位上升的状态的信息 发电时间气体供应商。 燃料电池系统还包括阳极形态变化导流器，其基于阳极电位上升信息导出代表阳极中包括的催化剂金属的形态变化程度的阳极形态变化。

公开(公告)号：US20120308905A1

公开(公告)日：2012-12-06

申请号：US13510436

申请日：2010-11-25

申请人： Shuya Kawahara ,  Manabu Kato ,  Hideyuki Kumei ,  Tomoaki Uchiyama ,  Tsuyoshi Maruo

发明人： Shuya Kawahara ,  Manabu Kato ,  Hideyuki Kumei ,  Tomoaki Uchiyama ,  Tsuyoshi Maruo

IPC分类号： H01M8/06

CPC分类号： H01M8/04828 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04253 ,  H01M8/04302 ,  H01M8/04492 ,  H01M8/04589 ,  H01M8/0491 ,  H01M8/04955 ,  H01M8/04992 ,  H01M2008/1095

摘要： A fuel cell system includes a fuel cell; a cathode inflow water amount determining portion that determines a cathode inflow water amount after activation of the fuel cell; an obtaining portion that obtains a pore total volume of the cathode side catalyst layer; an operating condition determining portion that determines, based on the determined cathode inflow water amount and the obtained pore total volume, an operating condition of the fuel cell that includes a current value of current that flows through the fuel cell and an upper limit value of a period of time for which the current flows, for bringing the cathode inflow water amount within a range that is equal to or less than the pore total volume; and an adjusting portion that adjusts the current value and the period of time for which current of the current value flows, such that the determined operating condition is realized.

摘要翻译： 燃料电池系统包括燃料电池; 阴极流入水量确定部，确定燃料电池的启动后的阴极流入水量; 获得阴极侧催化剂层的孔总体积的获得部分; 操作条件确定部分，其基于所确定的阴极流入水量和所获得的孔隙总体积，确定包括流过燃料电池的电流的当前值和燃料电池的上限值的燃料电池的运行状态 电流流过的时间段，用于使阴极流入水量在等于或小于孔总体积的范围内; 以及调整部，其调整当前值的电流值和电流的电流流过的时间段，使得实现所确定的运行状态。

公开(公告)号：US09711814B2

公开(公告)日：2017-07-18

申请号：US13697407

申请日：2011-05-25

申请人： Shuya Kawahara ,  Manabu Kato

发明人： Shuya Kawahara ,  Manabu Kato

IPC分类号： H01M8/04537 ,  H01M8/04664 ,  H01M8/04858 ,  H01M8/04828

CPC分类号： H01M8/04574 ,  H01M8/04552 ,  H01M8/04671 ,  H01M8/0491 ,  H01M8/0494 ,  Y10T307/779

摘要： A fuel cell system includes an accumulated current value measuring unit. The accumulated current value measuring unit measures an accumulated current value by time integration of current output from the fuel cell in a period during which oxygen is produced by water-splitting reaction in an anode of a negative voltage cell. A control unit uses a first correlation between the accumulated current value in the oxygen generation period and an oxygen consumption rate in the anode and a second correlation between a current density of the fuel cell in the oxygen generation period and an oxygen production rate in the anode to obtain a current density at or below which the amount of oxygen in the anode may be reduced, and causes the fuel cell to output electric power at a current density lower than the obtained current density.