Density, viscosity, ionic conductivity, and self-diffusion coefficient of organic liquid electrolytes: Part I. Propylene carbonate + Li, Na, Mg and Ca cation salts

To investigate physicochemical relationships between ionic radii, valence number and cationic metal species in electrolyte solutions, propylene carbonate with Li[N(SO₂CF₃)2], Na[N(SO₂CF₃)2], Mg[N(SO₂CF₃)2]₂ and Ca[N(SO₂CF₃)2]2 were prepared. The temperature dependence of density, viscosity, ionic conductivity (AC impedance method) and self-diffusion coefficient (pulsed-gradient spin-echo nuclear magnetic resonance) was measured. The effects of cationic radii and cation valence number on the fluidity and transport properites (conductivity and self-diffusion coefficient) were analyzed.