POSITIVE ELECTRODE ACTIVE MATERIAL, PRODUCTION METHOD THEREOF AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

In order to provide a 3V level non-aqueous electrolyte secondary battery with a flat voltage and excellent cycle life at a high rate with low cost, the present invention provides a positive electrode represented by the formula: Li2+/- alpha ÄMeÜ4O8-x, wherein 0