Abstract
Layered rocksalt oxides containing lithium are promising cathode materials of secondary lithium battery. Their physical properties, however, vary significantly depending on the synthesis conditions and materials design based on their structure-property relationships is important for future materials developments. The relationships between the structures, phase relationships, and physical properties were studied in order to improve their cathodic properties. The compositions and structures were determined for lithium nickel oxides using X-ray and neutron Rietveld analysis and its magnetic properties were also studied. New cathode candidates based on iron oxides were synthesized by soft chemistry method and its structures and cathodic properties were studied.
