The invention is a process which provides a high purity lithiated manganese oxide (Li.sub.1+x Mn.sub.2-y O.sub.4) from chemically made MnO.sub.2. The lithiated manganese oxide has an especially effective utility for use as a cathodic material in rechargeable batteries. The process of the invention includes...http://www.google.fr/patents/US6207129?utm_source=gb-gplus-shareBrevet US6207129 - Lithiated manganese oxide