@inproceedings{oai:jaxa.repo.nii.ac.jp:00008129,
 author = {曽根, 理嗣 and Sone, Yoshitsugu},
 book = {第23回宇宙エネルギーシンポジウム　平成15年度, The 23rd ISAS Space Energy Symposium March 9, 2004},
 month = {Jun},
 note = {Polymer Electrolyte Fuel Cells (PEFCs) have recently received a great deal of attention due to their applicability to electric vehicles and stationary generators. This attention has enhanced their research and development. In the field of space engineering, fuel cells have been applied to spacecraft like GEMINI and other manned operations since the 1960's. Since a fuel cell produces water as a byproduct of generating electricity, it is very attractive for manned operations in a closed environment. Furthermore, the fuel cell generates energy using hydrogen and oxygen, both of which have high energy density. Due to this high potential, fuel cells are still advantageous for application to large spacecraft with short-term missions. The first practical application of the fuel cell in space was for the GEMINI project in the 1960's. The first fuel cell to travel in space was the PEFC. The membrane for the fuel cell was polystyrene, not perfluoro-membrane, and high power supply, commonly achievable today, was not realized. When the APOLLO and Space Shuttle missions started, PEFC was replaced by an alkaline fuel-cell system. Today, PEFCs are beginning to receive a considerable amount of attention again for aerospace applications. One example is the Stratospheric Platform Project. A lightweight, long-duration generating system is now required to maintain the altitude and position of a balloon or an airship in the stratosphere. For space applications, a variety of missions are proposed that will need the fuel-cell system. One example is a transfer vehicle in low-Earth orbit. The demonstration using the balloon and launch vehicles will enhance the development of fuel cell system, and realize fuel cell applications to the above missions. Furthermore, fuel cell system using propellant will save the weight of the satellite for planetary missions. It will also prevent the risk of making debris due to the malfunction of satellites. Thus, the fuel cell system will become an important basic technology commonly required for future spacecraft., 資料番号: AA0047275013},
 pages = {60--64},
 publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)},
 title = {宇宙用燃料電池の技術背景と今後の展開},
 year = {2004}
}