Core-shell type anode active material for lithium secondary battery, method for preparing the same and lithium secondary battery comprising the same
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United States of America Patent
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May 9, 2017
Grant Date -
May 31, 2012
app pub date -
Nov 6, 2007
filing date -
Nov 5, 2007
priority date (Note) -
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Abstract
The present invention relates to a core-shell type anode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery comprising the same. The anode active material for a lithium secondary battery according to the present invention comprises a carbon based material core portion; and a shell portion formed outside of the carbon based material core portion by coating the carbon based material core portion with a spinel-type lithium titanium oxide. The anode active material for a lithium secondary battery according to the present invention has the metal oxide shell portion, and thus has the improved conductivity, a high output density, and consequently excellent electrical characteristics.
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