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SCI Article

Enhanced electrochemical performance of carbon-LiMn1-xFexPO4 nanocomposite cathode for lithium-ion b
Author Oh, Seung-Min (Dept WCU Energy Engn); Jung, Hun-Gi (Dept WCU Energy Engn); Sun, Yang-Kook (Dept WCU Energy Engn); Oh, Seung-Min (Dept Chem Engn); Sun, Yang-Kook (Dept Chem Engn); 윤종승 (Dept Mat Sci & Engn);
Corresponding Author Info Amine, K (reprint author), Argonne Natl Lab, Electrochem Technol Program, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
E-mail 씠硫붿씪 븘씠肄
Document Type Article
Source JOURNAL OF POWER SOURCES Volume:196 Issue:16 Pages:6924-6928 Published:2011
Times Cited 53
External Information PDF 븘씠肄http://dx.doi.org/10.1016/j.jpowsour.2010.11.159
Abstract 4V-class olivine C-LiMn1-xFexPO4 (x = 0 and 0.15) are synthesized by ultrasonic pyrolysis followed by ball milling with AB carbon to evaluate the doping effect of iron. The C-LiMn0.85Fe0.15PO4 shows excellent rate capability having discharge capacity of 150 mAh g(-1) at 0.5C-rate and 121 mAh g(-1) at 2C-rate. The capacity retention of the C-LiMn0.85Fe0.15PO4 is 91% after 50 cycles at 55 degrees C whereas C-LiMnPO4 is limited to 87%. The improved electrochemical performance of the C-LiMn0.85Fe0.15PO4 electrode is attributed to the enhanced electrical conductivity caused by tighter binding on the carbon particles with the LiMn0.85Fe0.15PO4 primary particles as well as by the surface coating of carbon on the primary particles. Published by Elsevier B.V.
Web of Science Categories Electrochemistry; Energy & Fuels
Funding Korean government (MEST) [2009-0092780]; Ministry of Education, Science and Technology (MEST) of Korea for the Center for Next Generation Dye-sensitized Solar Cells [2009-0063371]
Language English
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