Li-Ni COMPLEX OXIDE PARTICLE POWDER AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

The present invention relates to Li-Ni composite oxide particles having a composition of Li x (Ni y Co 2(1-y)/5 Mn 3(1-y)/5 ) 1-z M z O 2 wherein x, y and z represent 1.00 ¤ x ¤ 1.10; 0.65 < y < 0.82; and 0 ¤ z < 0.05, respectively; and M is at least one element selected from the group c...

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Hauptverfasser:	ISHIZAKI, Kazutoshi, NISHIMURA, Masaki, SADAMURA, Hideaki, MISHIMA, Yuji, KIKUYA, Kazuhiko
Format:	Patent
Sprache:	eng ; fre ; ger
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:	The present invention relates to Li-Ni composite oxide particles having a composition of Li x (Ni y Co 2(1-y)/5 Mn 3(1-y)/5 ) 1-z M z O 2 wherein x, y and z represent 1.00 ¤ x ¤ 1.10; 0.65 < y < 0.82; and 0 ¤ z < 0.05, respectively; and M is at least one element selected from the group consisting of Al, Zr and Mg. The Li-Ni composite oxide particles of the present invention exhibit a high initial discharge capacity and are excellent in first-cycle charge/discharge efficiency when used as a positive electrode active substance for non-aqueous electrolyte secondary batteries.