POSITIVE ELECTRODE ACTIVE SUBSTANCE PARTICLE POWDER FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PRODUCTION METHOD THEREFOR, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

WIPO Patent Application WO/2015/199168

A1

The purpose of the present invention is to provide: a positive electrode active substance particle powder that is for a non-aqueous electrolyte secondary battery and that has excellent direct current resistance characteristics at low temperatures; a production method therefor; and a non-aqueous electrolyte secondary battery. The present invention relates to a positive electrode active substance particle powder that is for a non-aqueous electrolyte secondary battery and that contains tungsten oxide particles and lithium composite oxide particles having a layered rock salt structure that comprises at least Li combined with one element selected from among Ni, Co, and Mn. The positive electrode active substance particle powder for a non-aqueous electrolyte secondary battery is characterized in that: 0.1-4.0 mol% of W is present with respect to the total molar amount of Ni, Co, and Mn within the lithium composite oxide; and the average secondary particle size of the tungsten oxide particles is 0.1-3.0 µm.

YAMAMURA TAKAYUKI (JP)
KASHIMA TETSUYA (JP)
MASAKI RYUTA (JP)
KOGA KAZUMICHI (JP)

PCT/JP2015/068298

December 30, 2015

June 25, 2015

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TODA KOGYO CORP (JP)

H01M4/525; H01M4/36; H01M4/505

WO2011162157A1	2011-12-29
WO2013015069A1	2013-01-31
WO2012111116A1	2012-08-23
WO2014149020A1	2014-09-25

JP2013143380A	2013-07-22
JP2013084395A	2013-05-09
JP2005320184A	2005-11-17
US20140099545A1	2014-04-10

See also references of EP 3163657A4

OKADA, KAZUHIKO (JP)
Kazuhiko Okada (JP)

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