Investigation of Charge Storage Properties in V2O5 Thin Films
V2O5薄膜电荷储存特性研究

Lithium was inserted electrochemically from an electrolyte into V2O5 thin films prepared by evaporation and posttreated at different temperatures in air so that LixV2O5 was obtained. Li storage properties, reversibiliy of Li intercalation/deintercalation in V2O5 thin films and influence of Li insertion on their optical properties were investigated. The experimental results show that two factors, the V5 concentration and the sum total of sites in V2O5 thin films, control the capacity of Li insertion into V2O5 thin films, and that these thin films have a good Li storage characteristic, stability and reversibility.