Positive active material for nonaqueous electrolyte secondary batteries and nonaqueous electrolyte secondary battery
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United States of America Patent
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Apr 19, 2016
Grant Date -
Dec 6, 2012
app pub date -
Feb 16, 2011
filing date -
Feb 17, 2010
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Abstract
An object is to provide a positive active material for nonaqueous electrolyte secondary battery, which is capable of providing a battery with excellent cycle performance. Provided are a positive active material for nonaqueous electrolyte secondary battery, which includes an Fe-containing lithium vanadium phosphate compound having a NASICON-type structure, wherein in the Fe-containing lithium vanadium phosphate compound, the percentage of iron atoms relative to the sum of vanadium and iron atoms is 2% or more and 20% or less; and the like.
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