IMPROVING THE ELECTROCHEMICAL PROPERTIES OF CARBON ANODES IN LITHIUM SECONDARY BATTERIES

The electrochemical properties of carbon anodes in lithium secondary b atteries an improved by the addition of vanadium as V2O5. The action o f the added V2O5 is different from that obtained by incorporating a no nmetallic element such as nitrogen, boron, phosphorous or silicon. Bec ause it can increase the distance between the 002 planes of the carbon and act as nucleating agent that promotes the formation of a layer-li ke carbon structure, V2O5, not only enlarges the carbon anode's revers ible capacity of lithium storage but also improves the cycling behavio r. (C) 1998 Published by Elsevier Science S.A.