首页> 外文会议>Pacific Rim Meeting on Electrochemical and Solid-State Science >Design and Characterization of Porous Graphite Bipolar Plates for Water Management in PEM Fuel Cells
【24h】

Design and Characterization of Porous Graphite Bipolar Plates for Water Management in PEM Fuel Cells

机译:PEM燃料电池水管理多孔石墨双极板的设计与鉴定

获取原文

摘要

Proton exchange membrane fuel cells (PEMFCs) are promising power-generation sources for mobile, stationary, and emergency backup power applications. Proper water management within the cell is crucial for the optimum performance and durability of PEMFCs. Excessive water leads to the flooding of the cathode compartment, while dehydration of the membranes results in increasing resistive losses. Therefore, water management is critical to the successful implementation of PEMFCs. To optimize the water balance, various designs have been proposed and tested. These approaches include the use of more complex diffusion media and microporous layers, liquid water injection, wicking of liquid water, and the use of different flow-field pathways. The latter two approaches seek to enable self-humidification of the PEMFCs system, thereby decreasing the cost and parasitic power losses of external components such as humidifiers.
机译:质子交换膜燃料电池(PEMFCS)是移动,静止和紧急备用电源应用的发电源。 细胞内的适当水管理对于PEMFCs的最佳性能和耐久性至关重要。 过量的水导致阴极舱的洪水,而膜的脱水导致电阻损失增加。 因此,水管理对PEMFC的成功实施至关重要。 为了优化水平衡,已经提出和测试了各种设计。 这些方法包括使用更复杂的扩散介质和微孔层,液体注水,液体污垢,以及使用不同的流场途径。 后两种方法寻求启用PEMFCS系统的自我加湿,从而降低外部部件的成本和寄生功率损失,例如加湿器。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号