Electrochemical cell or battery with a negative electrode comprising vanadium oxide, v₆o₁₃, or lithiated vanadium oxide, li_yv₆o₁₃, as an active material

摘要

The present invention provides an electrochemical cell or battery, which has a nonmetal negative electrode (anode). That is, no solid metal active material is used in the cell. Rather than the conventional solid lithium metal anode, the active material of the new anode comprises a compound of vanadium oxide. Accordingly, the lithium cell of the invention comprises a positive electrode and a negative electrode, where the negative electrode comprises a compound of vanadium oxide which in a fully discharged state is represented by the nominal general formula V6O13 or LiyV6O13, y equal to 0; and, in a fully or partially lithiated, fully or partially charged state, is represented by the nominal general formula LiyV6O13, where y is greater than 0 and less than or equal to 8. The unique negative electrode of the invention demonstrates exceptional performance without the disadvantages of metallic lithium negative electrodes.