MIXED ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY ELECTRODE, LITHIUM SECONDARY BATTERY AND POWER STORAGE APPARATUS
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United States of America Patent
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Jun 30, 2016
app pub date -
Jun 18, 2014
filing date -
Jul 10, 2013
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Provided is a mixed active material for a lithium secondary battery, which includes a lithium transition metal composite oxide having an α-NaFeO2 structure with the transition metal (Me) including Co, Ni and Mn and the Mn/Me molar ratio being more than 0.5, and a lithium transition metal composite oxide having an α-NaFeO2 structure with the transition metal (Me) including Co, Ni and Mn and the Mn/Me molar ratio being more than 0 and not more than 0.5, wherein the mixed active material has a specific surface area of 4.4 m2/g or less and a S content of 0.2 to 1.2% by mass.
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