S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Material Science and Engineering (재료공학부) Journal Papers (저널논문_재료공학부)
Synthesis and electrochemical properties of layered LiNi2/3Sb1/3O2
- Ma, Xiaohua; Kang, Kisuk; Ceder, Gerbrand; Meng, Ying Shirley
- Issue Date
- Journal of Power Sources, Vol.173 No.1, pp.550-555
- LiNi2/3Sb1/3O2 has been prepared by ion-exchange from NaNi2/3Sb1/3O2. Powder X-ray diffraction (XRD) and single crystal electron diffraction by transmission electron microscopy (TEM) of the material indicate that it is isostructural with alpha-NaFeO2. Electrochemical test shows that the reversible capacity for Li intercalation and deintercalation drops rapidly with the number of times cycled. Both experimental evidences and first principles calculations point to the migration of nickel as the reason for the poor capacity retention. (C) 2007 Published by Elsevier B.V.
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