Proton exchange membrane fuel cell power density

The most promising fuel cell for transportation purposes was initially developed in the 1960s and is called the proton-exchange membrane fuel cell (PEMFC). Compared with the PAFC, it has much greater power density state-of-the-art PEMFC stacks can produce in excess of 1 kWA. It is also potentially less expensive and, because it uses a thin solid polymer electrolyte sheet, it has relatively few sealing and corrosion issues and no problems associated tvith electrolyte dilution by the product water. 

J. Srmivason, et al., "High Energy Efficiency and High Power Density Proton Exchange Membrane Fuel Cells - Electrode Kinetics and Mass Transport," Journal of Power Sources, p. 36, 1991. 

Murphy, O. J., Hitchens, G. D., and Manko, D. J. High-power density proton-exchange membrane fuel cells. Journal of Power Sources 1994 47 353-368. 

The use of chlorine in a fuel cell system for space power applications has been suggested [100]. The CI2/H2 system is based on a proton-exchange membrane fuel cell design and is shown to give superior power and energy density when compared to conventional systems. 

P P Po PCHE PCR PCS PDF PDMS Pe PEM PEMFC PET pH Power output Pressure Pressure drop of one SAR step Printed circuit heat-exchanger Printed circuit reactor Process control system Probability density function Poly-dimethylsiloxane Peclet-number Proton exchange membrane Proton exchange membrane fuel cell Poly-ethylene terephthalate Potentia Hydrogenii (measure for acid and base strength)... 

Previously, the common approach to fabricating membrane and electrode assemblies for proton exchange membrane fuel cells involves hot-pressing a mixture of platinum powder and polytetrafluoroethylene (PTFE) on both sides of a proton exchange membrane. This method has resulted in hydrogen-oxygen fuel cells capable of high power densities. 

Figure 12. Schematic dependence of output voltage and power density on electrical current density from a proton exchange membrane fuel cell. Reprinted from [44] with permission from Elsevier.

Olson TS, Chapman K, Atanassov P (2008) Non-platinum cathode catalyst layer composition for single membrane electrode assembly proton exchange membrane fuel cell. J Power Density 183 557-563... 

Among the various kinds of fuel cells, proton exchange membrane fuel cells (PEFC) are compact and lightweight. They provide a high output power density at room temperature, and are easy to start-up and shut down in system operation [1,8,9]. 

Srinivasan S, Velew OA, Parthasarathy A, Manko DJ, Appleby AJ. High energy efficiency and high power density proton exchange membrane fuel cells - electrode kinetics and mass transport. J Power Sources 1991 36 299-320. 

Dfllet J, Lottin O, Maranzana G, Didierjean S, ConteauD etal. (2010), Direct observation of the two-phase flow in the air channel of a proton exchange membrane fuel cell and of the effects of a clogging/unclogging sequence on the current density distribution , J. Power Sources, 195,2795-2799. 

FIGURE 9.18 Change in FC current density for different isothermal potentiostatic cold starts at -10°C and at an identical dried level at 20°C prior to start-up. corresponds to R2rc = 9.5 Cl cm . (Reprinted from J. Power Sources, 186, Pinton, E. et al.. Experimental and theoretical investigations on a proton exchange membrane fuel cell starting up at subzero temperatures, 80-88, Copyright (2009), with permission from Elsevier.)... 

Srinivasan S., O. A. Velev, A. Parthasarathy, D. J. Manko, A. J. Appleby, High energy efficiency and high powCT density proton exchange membrane fuel cells, 7. Power Sources, 36, 299 (1991). 

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