公开(公告)号：US09343756B2

公开(公告)日：2016-05-17

申请号：US12067086

申请日：2007-05-23

申请人： Sung-Jin Oh ,  Kyoung-Hwang Lee ,  Seung-Ho Baek ,  Sung-Hoon Lee ,  Il-Tae Park ,  Byung-Sun Hong ,  Mee-Nam Shinn

发明人： Sung-Jin Oh ,  Kyoung-Hwang Lee ,  Seung-Ho Baek ,  Sung-Hoon Lee ,  Il-Tae Park ,  Byung-Sun Hong ,  Mee-Nam Shinn

IPC分类号： H01M8/04 ,  H01M8/02 ,  H01M8/24 ,  H01M8/10

CPC分类号： H01M8/0263 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/04029 ,  H01M8/04067 ,  H01M8/04089 ,  H01M8/04201 ,  H01M8/04529 ,  H01M8/04679 ,  H01M8/04753 ,  H01M8/1004 ,  H01M8/1039 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2483 ,  H01M8/2484 ,  H01M8/2485 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/50

摘要： A fuel cell separator, a fuel cell stack having the fuel cell separator, and a reactant gas control method of the fuel cell stack are provided. That is, even when the fuel cell stack operates under the low load operation condition, a reactant gas is supplied to the reactant gas passages of the fuel cell separator, and thus, the length of the passage can be shortened by 50% as compared with the prior art having only one reactant gas passage. Therefore, the reactant gas can be effectively supplied without experiencing pressure loss. Further, in the high load operation of the fuel cell stack, the reactant gas is introduced into the first reactant gas passage of the fuel cell separator and utilized in half of the whole electrode area. Subsequently, the reactant gas is introduced into the second reactant gas passage and utilized in the remaining half of the electrode area. The flow rate of the reactant gas flowing along the passage channels is increased by two times, even when the reactant gas utilizing rate is identical as compared with the reactant gas flow in the low load operation. As a result, the moisture existing in the passage channels can be more effectively discharged and the flooding phenomenon occurring in the high load operation can be prevented. By controlling the reactant gas supply in accordance with an operation condition of the fuel cell stack without experiencing pressure loss and deterioration of the utilizing rate, the flooding phenomenon and concentration polarization phenomenon that occur in the fuel cell stack can be prevented.

摘要翻译： 提供燃料电池隔板，具有燃料电池隔板的燃料电池堆和燃料电池堆的反应气体控制方法。 也就是说，即使燃料电池堆在低负载运转条件下运转，向燃料电池用隔板的反应气体通路供给反应气体，因此与通常的通路长度相比可以缩短50％ 现有技术仅具有一个反应气体通道。 因此，能够有效地供给反应气体而不会发生压力损失。 此外，在燃料电池堆的高负荷运转中，将反应气体导入燃料电池用隔板的第一反应气体通路，并用于整个电极区域的一半。 随后，反应气体被引入到第二反应气体通道中，并用于电极区域的剩余部分。 即使反应物气体的利用率与低负荷运转中的反应气体流量相同，流过通道的反应气体的流量增加了两倍。 结果，可以更有效地排出存在于通道通道中的水分，并且可以防止在高负载操作中发生的溢流现象。 通过根据燃料电池堆的操作条件控制反应气体的供给而不会发生压力损失和利用率的劣化，可以防止在燃料电池堆中发生的溢流现象和浓缩极化现象。

公开(公告)号：US20090169930A1

公开(公告)日：2009-07-02

申请号：US12067086

申请日：2007-05-23

申请人： Sung-Jin Oh ,  Kyoung-Hwang Lee ,  Seung-Ho Baek ,  Sung-Hoon Lee ,  Il-Tae Park ,  Byung-Sun Hong ,  Mee-Nam Shinn

发明人： Sung-Jin Oh ,  Kyoung-Hwang Lee ,  Seung-Ho Baek ,  Sung-Hoon Lee ,  Il-Tae Park ,  Byung-Sun Hong ,  Mee-Nam Shinn

IPC分类号： H01M2/14 ,  H01M8/04

CPC分类号： H01M8/0263 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/04029 ,  H01M8/04067 ,  H01M8/04089 ,  H01M8/04201 ,  H01M8/04529 ,  H01M8/04679 ,  H01M8/04753 ,  H01M8/1004 ,  H01M8/1039 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2483 ,  H01M8/2484 ,  H01M8/2485 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/50

摘要： A fuel cell separator, a fuel cell stack having the fuel cell separator, and a reactant gas control method of the fuel cell stack are provided. That is, even when the fuel cell stack operates under the low load operation condition, a reactant gas is supplied to the reactant gas passages of the fuel cell separator, and thus, the length of the passage can be shortened by 50% as compared with the prior art having only one reactant gas passage. Therefore, the reactant gas can be effectively supplied without experiencing pressure loss. Further, in the high load operation of the fuel cell stack, the reactant gas is introduced into the first reactant gas passage of the fuel cell separator and utilized in half of the whole electrode area. Subsequently, the reactant gas is introduced into the second reactant gas passage and utilized in the remaining half of the electrode area. The flow rate of the reactant gas flowing along the passage channels is increased by two times, even when the reactant gas utilizing rate is identical as compared with the reactant gas flow in the low load operation. As a result, the moisture existing in the passage channels can be more effectively discharged and the flooding phenomenon occurring in the high load operation can be prevented. By controlling the reactant gas supply in accordance with an operation condition of the fuel cell stack without experiencing pressure loss and deterioration of the utilizing rate, the flooding phenomenon and concentration polarization phenomenon that occur in the fuel cell stack can be prevented.

摘要翻译： 提供燃料电池隔板，具有燃料电池隔板的燃料电池堆和燃料电池堆的反应气体控制方法。 也就是说，即使燃料电池堆在低负载运转条件下运转，向燃料电池用隔板的反应气体通路供给反应气体，因此与通常的通路长度相比可以缩短50％ 现有技术仅具有一个反应气体通道。 因此，能够有效地供给反应气体而不会发生压力损失。 此外，在燃料电池堆的高负荷运转中，将反应气体导入燃料电池用隔板的第一反应气体通路，并用于整个电极区域的一半。 随后，反应气体被引入到第二反应气体通道中，并用于电极区域的剩余部分。 即使反应物气体的利用率与低负荷运转中的反应气体流量相同，流过通道的反应气体的流量增加了两倍。 结果，可以更有效地排出存在于通道通道中的水分，并且可以防止在高负载操作中发生的溢流现象。 通过根据燃料电池堆的操作条件控制反应气体的供给而不会发生压力损失和利用率的劣化，可以防止在燃料电池堆中发生的溢流现象和浓缩极化现象。