Thin-Membrane Solid-Acid Fuel Cell | Zendy

Tetsuya Uda | Zendy; Sossina M. Haile | Zendy

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Thin-Membrane Solid-Acid Fuel Cell

Author(s) -

Tetsuya Uda,

Sossina M. Haile

Publication year - 2005

Publication title -

electrochemical and solid-state letters

Language(s) - English

Resource type - Journals

eISSN - 1944-8775

pISSN - 1099-0062

DOI - 10.1149/1.1883874

Subject(s) - anhydrous , electrolyte , membrane , anode , materials science , cathode , proton exchange membrane fuel cell , open circuit voltage , chemical engineering , diffusion , electrode , gaseous diffusion , porosity , fuel cells , composite material , voltage , chemistry , organic chemistry , electrical engineering , biochemistry , physics , engineering , thermodynamics

Solid-acid fuel cells (SCFCs) utilize an anhydrous, nonpolymeric proton conducting electrolyte that can operate at slightly elevated temperatures. By supporting thin CsH2PO4 electrolyte membranes (25-36 µm), on porous stainless steel gas-diffusion electrodes, SAFCs with peak power densities as high as 415 mW/cm^2 were obtained. Cells were operated at ~240°C with humidified H2 supplied to the anode and humidified O2 supplied to the cathode. Despite the thinness of the membranes, the open-circuit voltages were high, 0.91-1.01 V. These results transform SAFCs from laboratory curiosities into highly competitive energy conversion devices.

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