自然給気型燃料電池の電池性能に対する影響因子(マイクロ・小型分散・発電プラントにおける燃料電池最新技術,マイクロ・小型分散・発電プラントにおける燃料電池最新技術)

概要

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A free-breathing polymer electrolyte membrane fuel cell (PEMFC), whose oxidant is fed by natural convection from ambient air, is considered as one of small and portable power sources. In this study, the performance limit without gas humidification and the factors affecting performance of the free-breathing PEMFC were investigated. The cell voltage of normal PEMFC without gas humidification is approximate equivalent of that with gas humidification under low current density conditions, less than 0.1 A/cm^2. For the performance of the free-breathing PEMFC at the low current density, the contact resistance loss between separator and gas diffusion layer is dominant factor and the separator structure for decreasing the contact resistance is needed to improve performance.
一般社団法人日本機械学会の論文
2004-09-04