公开(公告)号：US08088526B2

公开(公告)日：2012-01-03

申请号：US12334040

申请日：2008-12-12

申请人： Jun Cai ,  Akbar Chowdhury ,  Seth E. Lerner ,  William S Marley ,  David R Savage ,  James K Leary

发明人： Jun Cai ,  Akbar Chowdhury ,  Seth E. Lerner ,  William S Marley ,  David R Savage ,  James K Leary

IPC分类号： H01M8/04

CPC分类号： H01M8/249 ,  H01M8/04552 ,  H01M8/04559 ,  H01M8/04753 ,  H01M2008/1095

摘要： A system and method for correcting a large fuel cell voltage spread for a split sub-stack fuel cell system. The system includes a hydrogen source that provides hydrogen to each split sub-stack and bleed valves for bleeding the anode side of the sub-stacks. The system also includes a voltage measuring device for measuring the voltage of each cell in the split sub-stacks. The system provides two levels for correcting a large stack voltage spread problem. The first level includes sending fresh hydrogen to the weak sub-stack well before a normal reactive bleed would occur, and the second level includes sending fresh hydrogen to the weak sub-stack and opening the bleed valve of the other sub-stack when the cell voltage spread is close to stack failure.

摘要翻译： 一种用于校正用于分割子堆叠燃料电池系统的大的燃料电池电压扩展的系统和方法。 该系统包括氢源，其向每个分组子堆提供氢气，并且用于排出子堆的阳极侧的放气阀。 该系统还包括用于测量分组子堆中每个单元的电压的电压测量装置。 该系统提供了两个级别，用于校正大型堆叠电压传播问题。 第一级包括在发生正常反应性渗流之前将新鲜氢气发送到弱子堆，而第二级包括将新鲜的氢气发送到弱子堆并打开另一子堆的排放阀 电压传播接近堆叠故障。

公开(公告)号：US08603690B2

公开(公告)日：2013-12-10

申请号：US12334007

申请日：2008-12-12

申请人： Steven D. Burch ,  Bruce J. Clingerman ,  Abdullah B. Alp ,  Jon R. Sienkowski ,  James K Leary ,  Victor W. Logan ,  Daniel I Harris

发明人： Steven D. Burch ,  Bruce J. Clingerman ,  Abdullah B. Alp ,  Jon R. Sienkowski ,  James K Leary ,  Victor W. Logan ,  Daniel I Harris

IPC分类号： H01M8/04

CPC分类号： H01M8/04014 ,  H01M8/04268 ,  H01M2008/1095

摘要： A system and method for quickly heating a fuel cell stack at fuel cell system start-up. The fuel cell system includes a three-way valve positioned in the anode exhaust that selectively directs the anode exhaust gases to the cathode input of the fuel cell stack so that hydrogen in the anode exhaust gas can be used to heat the fuel cell stack. During normal operation when the fuel cell stack is at the desired temperature, the three-way valve in the anode exhaust can be used to bleed nitrogen to the cathode exhaust.

摘要翻译： 一种用于在燃料电池系统启动时快速加热燃料电池堆的系统和方法。 燃料电池系统包括位于阳极排气中的三通阀，其选择性地将阳极废气引导到燃料电池堆的阴极输入端，使得可以使用阳极废气中的氢气来加热燃料电池堆。 在燃料电池堆处于所需温度的正常操作期间，阳极排气中的三通阀可以用于将氮气排出到阴极排气口。