Microwave Plasma Chemical Vapor Deposition of Carbon Coatings on LiNi1/3Co1/3Mn1/3O2 for Li-ion Battery Composite Cathodes Marek L. Marcinekab, James W. Wilcoxb, Marca M. Doeffbc and Robert M. Kostecki?b Environmental Energy Technologies Division cMaterials Sciences Division Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720, USA 锂电资料分享 Q群：103946996 Abstract In this paper, we report results of a novel synthesis method of thin film conductive carbon coatings on LiNi1/3Co1/3Mn1/3O2 cathode active material powders for lithium-ion batteries. Thin layers of graphitic carbon were produced from a solid organic precursor, anthracene, by a one-step microwave plasma chemical vapor deposition (MPCVD) method. The structure and morphology of the carbon coatings were examined using SEM, TEM, and Raman spectroscopy. The composite LiNi1/3Co1/3Mn1/3O2 electrodes were electrochemically tested in lithium half coin cells. The composite cathodes made of the carbon-coated LiNi1/3Co1/3Mn1/3O2/C powder showed superior electrochemical performance and increased capacity compared to standard composite LiNi1/3Co1/3Mn1/3O2 electrodes. Current address: The Warsaw University of Technology, Warsaw, Poland. Electrochemical Society Active Member ?Corresponding author. E-mail address: r_kostecki@lbl.gov, tel: 00 1 510 486 6002, fax: 00 1 510 486 7303 Introduction The new generation of layered mixed transition metal oxides, LiMO2 (M=Co, Ni, and Mn), with the α-NaFeO2 structure currently considered for use as cathode materials in Li-ion batteries offers a high, reversible charge capac