Fabrication and Characterization of Glucose Fuel Cells with Microchannels Fabricated on Flexible Polyimide Film

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  • Fukushi Yudai
    Department of Precision Machinery Engineering, College of Science and Technology, Nihon University
  • Koide Shohei
    Department of Precision Machinery Engineering, College of Science and Technology, Nihon University
  • Ikoma Ryuta
    Department of Precision Machinery Engineering, College of Science and Technology, Nihon University
  • Akatsuka Wataru
    College of Engineering Sciences, University of Tsukuba
  • Tsujimura Seiya
    Division of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba
  • Nishioka Yasushiro
    Department of Precision Machinery Engineering, College of Science and Technology, Nihon University

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  • Fabrication and Characterization of Glucose Fuel Cells with a Microchannel Fabricated on Flexible Polyimide Film

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In this work, a glucose fuel cell was fabricated using microfabrication processes assigned for microelectromechanical systems. The fuel cell was equipped with a microchannel to flow an aqueous solution of glucose. The cell was fabricated on a flexible polyimide substrate, and its porous carbon-coated aluminum (Al) electrodes of 2.8 mm in width and 11 mm in length were formed using photolithography and screen printing techniques. Porous carbon was deposited by screen printing of carbon black ink on the Al electrode surfaces in order to increase the effective electrode surface area and to absorb more enzymes on the electrode surfaces. The microchannel with a depth of 200 μm was fabricated using a hot embossing technique. A maximum power of 0.45 μW at 0.5 V that corresponds to a power density of 1.45 μW/cm2 was realized by introducing a 200 mM concentrated glucose solution at room temperature.

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