Electrochemical Synthesis under Hydrothermal Conditions of alpha-MnO_2 Compounds:Characterization and Li-Insertion Behavior

摘要

Manganese dioxides are of technological interest as positive electrodes in rechargeable 3V lithium batteries.The advantages of manganese dioxides are their lower cost and toxicity,as well as their higher average voltage compared to vanadium oxides.There exist many different structures of MnO_2,of which alpha and gamma are of particular interest for practical applications.