METHOD FOR MANUFACTURING OVER-LITHIATED LAYERED LITHIUM METAL COMPOSITE OXIDE

WIPO Patent Application WO/2015/053357

A1

The present invention relates to a positive-electrode material for a lithium-ion battery comprising an over-lithiated layered lithium metal composite oxide. The present invention enables improved volumetric energy density as an electrode, and demonstrates excellent rate performance.　A method for manufacturing an over-lithiated layered lithium metal composite oxide represented by general formula Li1+xM1-xO2 (where, x is between 0.10 and 0.33 inclusive, and M includes Mn and also includes at least one element selected from the group consisting of Ni, Co, Al, Mg, Ti, Fe, and Nb), said method comprising: a step for obtaining an over-lithiated layered lithium metal composite oxide by mixing and firing a lithium compound, and a lithium metal composite oxide represented by general formula Li1+xM1-xO2 (where, x is between -0.15 and 0.15 inclusive, and M includes Mn and also includes at least one element selected from the group consisting of Ni, Co, Al, Mg, Ti, Fe, and Nb).

KAGEI SHINYA (JP)
TAKAHASHI TSUKASA (JP)
YAMAGUCHI KYOHEI (JP)
HATA YOSHIMI (JP)

PCT/JP2014/077046

April 16, 2015

October 09, 2014

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MITSUI MINING & SMELTING CO (JP)

C01G53/00; H01M4/505; H01M4/525

WO2008155989A1

2008-12-24

JP2013056801A	2013-03-28
JP2007257985A	2007-10-04
JP2003238165A	2003-08-27
JP2011082133A	2011-04-21

TAKEUCHI, ICHIZAWA & ASSOCIATES (JP)
Patent business corporation Takeuchi and an Ichizawa international patent firm (JP)

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