Publication number: 20140242463
Abstract: The present invention provides a positive active material for a secondary lithium battery, a method of preparing the positive active material, and a secondary lithium battery including the positive active material, wherein the positive active material includes a lithium metal composite oxide core represented by the following Chemical Formula 1, and a coating layer including a fluorine compound and positioned at a shell of the lithium metal composite oxide core. LiwNixCoyMn1-x-y-zMzO2??[Chemical Formula 1] (1.2?w?1.5, 0<x<1, 0?y<1, 0.5?1-x-y-z, and M is at least one metal selected from the group consisting of Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, and Zr).
Type:
Application
Filed:
September 18, 2012
Publication date:
August 28, 2014
Applicant:
KOREA ELECTRONICS TECHNOLOGY INSTITUTE
Inventors:
Jun Ho Song, Young Jun Kim, Jeom-Soo Kim, Woo Suk Cho, Jae-Hun Kim, Jin Hwa Kim