Stable Performance of PEFC in a Closed Environment Without Humidification
Stable Performance of PEFC in a Closed Environment Without Humidification
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DOI：
10.1149/200421.0684pv
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Y. Sone
中科院分区：
文献类型：
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作者：
Y. Sone
聚合物电解质燃料电池（PEFC）系统正在JAXA开发，用于未来短期任务和大型航天器的转移车辆。对于在封闭环境下的太空应用，我们正在开发一种系统，在这种系统中，燃料被完全消耗，氧气被循环利用。我们制备了一种带有气水分离器的六电池堆燃料电池，并演示了它在没有外部加湿的情况下的性能。MEA上Pt催化剂层的有效表面积为162 cm2。在名义上产生60 A的情况下，对燃料电池的性能进行了1000小时的检查。我们还通过模拟航天飞机运行演示了燃料电池的性能。PEFC在这些操作中表现稳定，为未来的空间任务提供了适用性。
Polymer Electrolyte Fuel Cell (PEFC) systems are being developed at JAXA for applications to transfer vehicles for shot-term missions and larger spacecraft in the future. For space applications in a closed environment, we are developing a system in which the fuel is perfectly consumed and the oxygen is recycled. We prepared a six-cell-stack fuel cell with a gas-water separator and demonstrated its performance without external humidification. The effective surface area of the Pt catalyst layer on the MEA was 162 cm2. The performance of the fuel cell was checked for 1,000 hours while it nominally generated 60 A. We also demonstrated the fuel cell performance through the simulated Space Shuttle operations. The PEFC performed stably during these operations, providing its applicability for future space missions.