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Performance equations that describe the dependence of cell potential on current density for polymer electrolyte fuel cells (PEFCs) have been developed in algebraic form. The equations are derived from the reduction of a one-dimensional model that takes into account, in detail, the limitations of reactant transport, proton migration and electron conduction, as well as electrochemical reactions within...
A simple visualization method is developed to enable the imaging of the distribution and agglomeration of ceramic fillers in composite polymer electrolytes by scanning electron microscopy (SEM). Solvent-free composite electrolytes based on poly(ethylene oxide) (PEO), LiBF 4 and SiO 2 particles are used as examples. The SiO 2 particles are stained by a heavy element (Pb) to...
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