Abstract
A novel all-solid-state thin-film lithium battery has been fabricated by spin coating V2O5 and LiClO4-SiO2 thin films on a stainless steel substrate. The LiClO4-SiO2 electrolyte has been synthesized using a new sol-gel route and it has been characterized by electrochemical impedance spectroscopy. The Li+ ion conductivity of the spin-coated thin film thus measured is in the order of 10–6 S/cm, at 25 °C, which is sufficient for electrolytes in such thin-film batteries. The battery shows a typical discharge capacity of about 150 µAh/mg and satisfactory cathodic efficiency and cycle-life performance.
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