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A Micro Hydrogen Generator with a Microfluidic Self-Regulating Valve for Sensors and Fuel Cells

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5 Author(s)
Swaminathan, V.V. ; Univ. of Illinois at Urbana-Champaign, Urbana, IL ; Zhu, L. ; Gurau, B. ; Masel, R.I.
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We have developed a fully integrated micro power generator, based on a hydrogen fuel cell. Key to the power generator is an on-board hydrogen production with a passive microfluidic control valve that provides self-regulating operation. Critical integration issues are identified and regimes established for efficient power generation. Preliminary results demonstrate the ability of our device to operate smoothly, with quick - order seconds - response for fluctuating power demands. Energy densities in excess of 150 Whr/L and peak powers of 369.2 W/L are promising for packaging the integrated hydrogen fuel cell into Power MEMS.

Published in:

Micro Electro Mechanical Systems, 2009. MEMS 2009. IEEE 22nd International Conference on

Date of Conference:

25-29 Jan. 2009