New lithiummanganese composite oxide for the cathode of rechargeable lithium batteries

An LiNO3MnO2 mixture, heat treated in the presence of H2O2 or HNO3, has shown excellent rechargeability as an electrode material for rechargeable lithium batteries. XRD patterns of this compound are completely different from known LiMn composite oxides such as LiMn2O4 or Li2MnO3. The presence of H2O2 or HNO3 preferentially reduces the LiMn2O4 content. The physicochemical properties of this new compound have been compared with those of other types of LiMn composite oxides.