低加湿・負荷変動条件下における固体高分子形燃料電池の耐久特性 Durability of PEMFC under Low-humidity and Load Cycle Conditions

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Proton exchange membrane fuel cells (PEMFC) are one of the most promising technologies for use as power sources for fuel cell vehicles and residential power applications. However, it is recognized that durability is critical issues for commercialization. Generally, PEMFC for automobile use are exposed to low relative humidity and load cycle condition that cause significant degradation of membrane and catalyst. The focus of this research is to investigate the influence of the load cycle pattern on the cell degradation. Single cell tests were performed for several load cycles and the degradation of the cell performances were evaluated by monitoring of the cell voltage, internal resistance, gas crossover rate and ionic content in effluent. Also, in order to investigate the gas diffusion layer (GDL) and the membrane/ionomer degradation, contact angle measurement were made for the GDL and solid <sup>19</sup>F-NMR measurement were conducted as the post analyses. In the load cycle conditions, the activation and diffusion polarization are remarkably increased during the test, and inadequate water content accelerates membrane/ionomer chemical degradation.

収録刊行物

  • 電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society  

    電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society 127(2), 417-423, 2007-02-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10018480782
  • NII書誌ID(NCID)
    AN10136334
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854213
  • NDL 記事登録ID
    8669192
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-794
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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