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GOLD-PLATED TITANIUM VS CARBON-IMPLANTED TITANIUM AS MATERIAL FOR BIPOLAR PLATES IN PEM FUEL CELLS

Laboratory of Energy-Accumulating Materials, Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya, 13 Bldg 2, Moscow 125412, Russia

E-mail Address: vlaskin@inbox.ru

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A. V. GRIGORENKO

Laboratory of Energy-Accumulating Materials, Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya, 13 Bldg 2, Moscow 125412, Russia

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E. I. SHKOLNIKOV

Laboratory of Energy-Accumulating Materials, Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya, 13 Bldg 2, Moscow 125412, Russia

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, and

A. S. ILYUKHIN

Laboratory of Energy-Accumulating Materials, Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya, 13 Bldg 2, Moscow 125412, Russia

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https://doi.org/10.1142/S0218625X19500380Cited by:7 (Source: Crossref)

Abstract

Three different types of current-collecting plates for air-hydrogen PEM fuel cell were manufactured and tested: unmodified titanium plates; gold-plated titanium plates and titanium plates treated by carbon ions implantation. It was shown that the applied surface modifications reduce contact resistance between titanium plate and carbon gas diffusion layer. Total ohmic resistance of fuel cell is reduced by 1.8 and 1.4 times in case of gold-plated titanium and carbon-implanted titanium, respectively, in comparison with uncoated titanium. Although gold plating turned out to be more profitable than carbon ion implantation in terms of electrical characteristics, in the last case, the performance enhancement was reached without using precious metals, which at mass production must play more important role. This technology promises to reduce the cost of bipolar plates manufacturing, while maintaining high electrical performance of PEM fuel cells.

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