POSITIVE-ELECTRODE MATERIAL FOR NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY USING SAID POSITIVE-ELECTRODE MATERIAL

Title:

POSITIVE-ELECTRODE MATERIAL FOR NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY USING SAID POSITIVE-ELECTRODE MATERIAL

Document Type and Number:

WIPO Patent Application WO/2013/125426

Kind Code:

A1

Abstract:

Provided is a positive-electrode material that is used in the positive electrode of a nonaqueous-electrolyte secondary battery and provides both high capacity and high output. Also, a method for manufacturing a positive-electrode material for a nonaqueous-electrolyte secondary battery, said method being characterized by the mixing of lithium tungstate with a lithium-metal complex-oxide powder that can be represented by the general formula LizNi1−x−yCoxMyO2 (in which 0.10 ≤ x ≤ 0.35, 0 ≤ y ≤ 0.35, 0.97 ≤ z ≤ 1.20, and M represents at least one added element selected from among manganese, vanadium, magnesium, molybdenum, niobium, titanium, and aluminum) and comprises both primary particles and secondary particles comprising aggregated primary particles.

Inventors:

KOKADO REI (JP)
MORI KENSAKU (JP)
TAKAGI MASANORI (JP)
HAYASHI TETSUTARO (JP)

Application Number:

PCT/JP2013/053472

Publication Date:

August 29, 2013

Filing Date:

February 14, 2013

Export Citation:

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Assignee:

SUMITOMO METAL MINING CO (JP)

International Classes:

H01M4/525; C01G41/00; C01G53/00; H01M4/36; H01M4/505; H01M4/62

Foreign References:

JP2012079464A	2012-04-19
JP4915488B1	2012-04-11
JP2012099271A	2012-05-24
JP2011216214A	2011-10-27
JP2010040383A	2010-02-18
JP2009289726A	2009-12-10
JP2008285388A	2008-11-27
JP2005320184A	2005-11-17
JP2005251716A	2005-09-15
JP2002075367A	2002-03-15
JP2009289726A	2009-12-10
JP2005251716A	2005-09-15
JP2002075367A	2002-03-15
JP2008285388A	2008-11-27

Other References: