6533b821fe1ef96bd127c18d

RESEARCH PRODUCT

Heat and mass transfer analysis in single cell of PEFC using different PEM and GDL at higher temperature

Akira NishimuraYusuke SatoSatoru KamiyaTatsuya OkadoMohan KolheMasafumi Hirota

subject

Materials scienceRenewable Energy Sustainability and the EnvironmentEnergy Engineering and Power Technology02 engineering and technologyElectrolyte010402 general chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesCathode0104 chemical sciencesAnodelaw.inventionFuel TechnologyElectricity generationOperating temperaturelawMass transferComposite material0210 nano-technologyCurrent densitySeparator (electricity)

description

Abstract According to the H2 and fuel cell road map in Japan, the target operating temperature of polymer electrolyte fuel cell (PEFC) should be 90 °C from 2020 to 2025. In this study, the impact of polymer electrolyte membrane (PEM) and gas diffusion layer (GDL)'s thickness on heat and mass transfer characteristics as well as power generation performance of PEFC is investigated at operating temperature of 90 °C. The in-plane temperature distributions on anode and cathode separator are also measured using thermograph. As a result, it is observed that the increase in power from 1 W to 5 W at the current density of 0.80 A/cm2 as well as even temperature distribution within 1 °C can be obtained at operating temperature of 90 °C by decrease in GDL's thickness from 190 μm to 110 μm. In addition, the power is increased from 3 W to 4 W at the current density of 0.80 A/cm2 operated at 90 °C by decrease in the PEM's thickness from 127 μm to 25 μm.

https://doi.org/10.1016/j.ijhydene.2019.05.192