公开(公告)号：US20110070511A1

公开(公告)日：2011-03-24

申请号：US12956226

申请日：2010-11-30

申请人： Amy E. Nelson ,  Bruce Lin ,  Joy A. Roberts ,  Uwe M. Limbeck ,  Craig R. Louie ,  Peter J. Bach

发明人： Amy E. Nelson ,  Bruce Lin ,  Joy A. Roberts ,  Uwe M. Limbeck ,  Craig R. Louie ,  Peter J. Bach

IPC分类号： H01M8/04

CPC分类号： H01M8/04029 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04302 ,  H01M2300/0082

摘要： Improvements in startup time for an electrochemical fuel cell system from freezing and sub-freezing temperatures may be observed by minimizing the coolant volume in the coolant subsystem. In particular, this may be accomplished by having a two pump—dual loop cooling subsystem. During startup, one pump directs coolant through a startup coolant loop and after either the fuel cell stack or the coolant temperature reaches a predetermined threshold value, coolant from a main or standard coolant loop is then directed to the fuel cell stack. In an embodiment, coolant from the standard loop mixes with coolant in the startup loop after the predetermined threshold temperature is reached.

摘要翻译： 通过最小化冷却剂子系统中的冷却剂体积可以观察到从冷冻和低温温度对电化学燃料电池系统的启动时间的改进。 特别地，这可以通过具有两个泵 - 双回路冷却子系统来实现。 在启动期间，一个泵将冷却剂引导通过启动冷却剂回路，并且在燃料电池堆或冷却剂温度达到预定阈值之后，来自主或标准冷却剂回路的冷却剂然后被引导到燃料电池堆。 在一个实施例中，在达到预定阈值温度之后，来自标准回路的冷却剂与起动回路中的冷却剂混合。

公开(公告)号：US08053122B2

公开(公告)日：2011-11-08

申请号：US12101771

申请日：2008-04-11

申请人： Uwe M. Limbeck ,  Marcus Aberle ,  Craig R. Louie ,  Amy E. Nelson

发明人： Uwe M. Limbeck ,  Marcus Aberle ,  Craig R. Louie ,  Amy E. Nelson

IPC分类号： H01M8/04 ,  H01M8/22

CPC分类号： H01M8/04302 ,  H01M8/04225

摘要： A system and method for starting up a fuel cell system are disclosed. Briefly described, an embodiment for starting an electrochemical reaction between a fuel and an oxidant during a start-up process includes a fuel cell stack operable to output a nominal voltage during a normal operating condition and operable to output a reduced start-up voltage during the start-up process, and includes at least one balance of plant (BOP) device that supports operation of the fuel cell stack, operable at a nominal output when sourced by the fuel cell stack at the nominal voltage, and operable at a reduced output when sourced by the fuel cell stack at the reduced start-up voltage.

摘要翻译： 公开了一种用于启动燃料电池系统的系统和方法。 简要描述，用于在启动过程中启动燃料和氧化剂之间的电化学反应的实施例包括燃料电池堆，其可操作以在正常操作条件期间输出额定电压，并且可操作以在期间输出降低的启动电压 启动过程，并且包括支持燃料电池堆的操作的工厂（BOP）装置的至少一个平衡，当以标称电压来源于燃料电池堆时可在标称输出下操作，并且在减小的输出时可操作 由燃料电池堆以较低的启动电压供电。

公开(公告)号：US20090258256A1

公开(公告)日：2009-10-15

申请号：US12101771

申请日：2008-04-11

申请人： Uwe M. Limbeck ,  Marcus Aberle ,  Craig R. Louie ,  Amy E. Nelson

发明人： Uwe M. Limbeck ,  Marcus Aberle ,  Craig R. Louie ,  Amy E. Nelson

IPC分类号： H01M8/04

CPC分类号： H01M8/04302 ,  H01M8/04225

摘要： A system and method for starting up a fuel cell system are disclosed. Briefly described, an embodiment for starting an electrochemical reaction between a fuel and an oxidant during a start-up process includes a fuel cell stack operable to output a nominal voltage during a normal operating condition and operable to output a reduced start-up voltage during the start-up process, and includes at least one balance of plant (BOP) device that supports operation of the fuel cell stack, operable at a nominal output when sourced by the fuel cell stack at the nominal voltage, and operable at a reduced output when sourced by the fuel cell stack at the reduced start-up voltage.

摘要翻译： 公开了一种用于启动燃料电池系统的系统和方法。 简要描述，用于在启动过程中启动燃料和氧化剂之间的电化学反应的实施例包括燃料电池堆，其可操作以在正常操作条件期间输出额定电压，并且可操作以在期间输出降低的启动电压 启动过程，并且包括支持燃料电池堆的操作的工厂（BOP）装置的至少一个平衡，当以标称电压来源于燃料电池堆时可在标称输出下操作，并且在减小的输出时可操作 由燃料电池堆以较低的启动电压供电。