MEMS-Based Polymer Electrolyte Fuel Cell

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  • MIN Kyong-Bok
    Department of Mechatronics and Precision Engineering, Tohoku University
  • TANAKA Shuji
    Department of Mechatronics and Precision Engineering, Tohoku University
  • ESASHI Masayoshi
    New Industry Creation Hatchery Center, Tohoku University

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<p>A Micro-Polymer Electrolyte Fuel Cell (µ-PEFC) with “alternating structure” was demonstrated. The alternating structure has a series of single cells formed in one plane, and the polarization of each single cell is alternately inverted. This structure has self-assembled cell interconnection on micromachined silicon substrates. The µ-PEFC has a size of 20 × 27 mm, and consists of 9 cells with a size of 1.2 × 15 mm connected in series. The voltage of a single cell was about 0.4 V, when a 10 MΩ load was connected to the cell. The potential of a six-stacked cell was, however, only 0.18 V under the same testing condition as used in the single cell test. This is probably caused by cross-talk and hydrogen leakage between the electrodes which are formed on the same substrate.</p>

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  • Electrochemistry

    Electrochemistry 70 (12), 924-927, 2002-12-05

    公益社団法人　電気化学会

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