RECHARGEABLE ELECTROCHEMICAL CELL HAVING A CATHODE BASED ON VANADIUM OXIDE

摘要

A rechargeable electrochemical cell whose anode is based on lithium or a lithium alloy, whose electrolyte is constituted by a solution of a lithium salt in a non-aqueous solvent, and whose cathode material is based on crystallized vanadium oxide, wherein the vanadium oxide contains a gamma ' phase due to chemical or electrochemical oxidation of a gamma phase of LiV2O5 obtained by inserting a number of atoms of lithium per mole of V2O5 into said oxide, where said number lies in the range 0.9 to 2.