Electronic and Li ionic conduction in sputtered transparent ZrO2 thin films
intercalated with Li ions, have been studied using impedance spectroscopy,
isothermal transient ionic current and galvanostatic intermittent titratio
n measurements. The ZrO2 was found to be a mixed electronic and ionic condu
ctor with an electron conductivity two orders of magnitude higher than the
Li ion conductivity at low ion concentrations. A lattice gas model was used
to study the interactions between the intercalated Li ions. The behavior o
f the Li chemical diffusion coefficient indicated that the net interaction
between the intercalated Li ions is attractive.