POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

This positive electrode active material for non-aqueous electrolyte secondary batteries is composed of single particles and/or secondary particles containing not more than 10 primary particles, of a lithium transition metal composite oxide containing not less than 85% by mole of Ni relative to the t...

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Bibliographische Detailangaben
Hauptverfasser:	Saito, Motoharu, Ogasawara, Takeshi
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	This positive electrode active material for non-aqueous electrolyte secondary batteries is composed of single particles and/or secondary particles containing not more than 10 primary particles, of a lithium transition metal composite oxide containing not less than 85% by mole of Ni relative to the total number of moles of metal elements other than Li. In the positive electrode active material, the particle cross-sections of the single particles and the primary particles of the lithium transition metal composite oxide each have a polygonal shape that includes a side having a length of 1.5 μm or greater, and at least three interior angles of the polygonal shape are 45-160°.