公开(公告)号：US09034495B2

公开(公告)日：2015-05-19

申请号：US12440787

申请日：2008-01-31

申请人： Kenji Umayahara ,  Michio Yoshida ,  Tadaichi Matsumoto ,  Motohiko Taniyama

发明人： Kenji Umayahara ,  Michio Yoshida ,  Tadaichi Matsumoto ,  Motohiko Taniyama

IPC分类号： H01M8/04

CPC分类号： H01M8/04619 ,  H01M8/04567 ,  H01M8/04753 ,  H01M8/04858 ,  H01M8/0488 ,  Y02E60/50

摘要： A fuel cell system performs control such that when a power requirement for the fuel cell is lower than a predetermined value, a supply of a reaction gas to a fuel cell is stopped to keep an output voltage from the fuel cell equal to a high-potential avoidance voltage that is lower than an open end voltage. The fuel cell system further controls the output voltage from the fuel cell with the high-potential avoidance voltage set to be an upper limit when the power requirement for the fuel cell is equal to or higher than a predetermined value. By setting the upper limit of the output voltage of the fuel cell to be the high-potential avoidance voltage, which is lower than the open end voltage, the catalyst can be inhibited from being degraded by an increase in the output voltage from the fuel cell up to the open end voltage.

摘要翻译： 燃料电池系统进行控制，使得当燃料电池的功率要求低于预定值时，停止向燃料电池供应反应气体以保持来自燃料电池的输出电压等于高电位 避免电压低于开路电压。 当燃料电池的功率要求等于或高于预定值时，燃料电池系统进一步控制来自燃料电池的输出电压，其中将高电位回避电压设置为上限。 通过将燃料电池的输出电压的上限设定为低于开路电压的高电位回避电压，可以抑制来自燃料电池的输出电压的增加而导致的催化剂劣化 达到开路电压。

公开(公告)号：US20100055521A1

公开(公告)日：2010-03-04

申请号：US12440787

申请日：2008-01-31

申请人： Kenji Umayahara ,  Michio Yoshida ,  Tadaichi Matsumoto ,  Motohiko Taniyama

发明人： Kenji Umayahara ,  Michio Yoshida ,  Tadaichi Matsumoto ,  Motohiko Taniyama

IPC分类号： H01M8/04 ,  H01M8/00

CPC分类号： H01M8/04619 ,  H01M8/04567 ,  H01M8/04753 ,  H01M8/04858 ,  H01M8/0488 ,  Y02E60/50

摘要： To provide a fuel cell system that can both improve power generation efficiency of a fuel cell and maintain durability of the fuel cell. A fuel cell system performs control such that when a power requirement for the fuel cell is lower than a predetermined value, a supply of a reaction gas to a fuel cell is stopped to keep an output voltage from the fuel cell equal to a high-potential avoidance voltage that is lower than an open end voltage. The fuel cell system further controls the output voltage from the fuel cell with the high-potential avoidance voltage set to be an upper limit when the power requirement for the fuel cell is equal to or higher than a predetermined value. By setting the upper limit of the output voltage of the fuel cell to be the high-potential avoidance voltage, which is lower than the open end voltage, the catalyst can be inhibited from being degraded by an increase in the output voltage from the fuel cell up to the open end voltage.

摘要翻译： 提供能够提高燃料电池的发电效率并保持燃料电池的耐久性的燃料电池系统。 燃料电池系统进行控制，使得当燃料电池的功率要求低于预定值时，停止向燃料电池供应反应气体以保持来自燃料电池的输出电压等于高电位 避免电压低于开路电压。 当燃料电池的功率要求等于或高于预定值时，燃料电池系统进一步控制来自燃料电池的输出电压，其中将高电位回避电压设置为上限。 通过将燃料电池的输出电压的上限设定为低于开路电压的高电位回避电压，可以抑制来自燃料电池的输出电压的增加而导致的催化剂劣化 达到开路电压。