Improved performance of fuel cell with proton-conducting glass membrane

H2/O2 fuel cells equipped with proton-conducting Nafion®/phosphosilicate (NPS) glass membranes, which are prepared from phosphosilicate glass and a perfluorosulfonic acid polymer, are characterized, and their performances are improved step by step by using Nafion® resin as an adhesive, increasing operation temperature, adopting a thin-film pressure sensor, and reducing glass membrane thickness. Finally, the fuel cell with a 500 μm thick NPS glass membrane releases a peak power density of 207 mW cm−2 at 70 °C.

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► H2/O2 fuel cells equipped with proton-conducting Nafion®/phosphosilicate (NPS) glass membranes, which are prepared from phosphosilicate glass and a perfluorosulfonic acid polymer, are characterized.
► The fuel cell performances are improved step by step by using Nafion® resin as an adhesive, increasing operation temperature, adopting a thin-film pressure sensor, and reducing glass membrane thickness.
► The fuel cell with a 500 μm thick NPS glass membrane releases a peak power density of 207 mW cm−2 at 70 °C.