SPINEL TYPE LITHIUM MANGANESE COMPOSITE OXIDE

PROBLEM TO BE SOLVED: To provide a lithium manganese composite oxide which has high discharge capacity per volume when used as a positive electrode material and is excellent in cycle characteristics when used at a high temperature.SOLUTION: A spinel type lithium manganese composite oxide denoted as...

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Hauptverfasser:	SHIBUYA KAORU, KOMATSU MICHIO, KOYANAGI TSUGUO, TSUNODA TERUAKI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INORGANIC CHEMISTRY METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a lithium manganese composite oxide which has high discharge capacity per volume when used as a positive electrode material and is excellent in cycle characteristics when used at a high temperature.SOLUTION: A spinel type lithium manganese composite oxide denoted as Li(x+y)Mn(2-y-p-q)MpMqO(4-a) is obtained by sintering a precursor. The spinel type lithium manganese composite oxide is characterized in that a peak appears within a range of 370°C to 470°C in a DSC curve obtained by performing differential scanning calory measurement on the precursor and the area of that peak is 30 mJ/mg or more.