CATHODE ACTIVE MATERIAL HAVING CORE-SHELL STRUCTURE AND PRODUCING METHOD THEREOF
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United States of America Patent
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Issued Date -
Jan 15, 2015
app pub date -
Sep 19, 2013
filing date -
Jul 12, 2013
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Abandoned
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Abstract
Disclosed is a cathode active material having a core-shell structure. The core-shell cathode active material includes a core including a lithium transition metal oxide with excellent electrochemical properties and a shell formed by coating the surface of the core with a transition metal oxide. The formation of the shell by coating a transition metal oxide on the surface of the core comprising a lithium transition metal oxide prevents the structure of the lithium transition metal oxide from collapsing and inhibits the dissolution of manganese ions, enabling the fabrication of a hybrid capacitor with improved energy density and rate characteristics. Also disclosed is a method for producing the cathode active material.
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