Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 492, Issue 1-2, Pages L87-L90Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2009.12.034
Keywords
Safety performance; Li[Ni0.5Co0.2Mn0.3]O-2; LiFePO4 coating; Cathode material; Lithium secondary battery
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Funding
- Ministry of Knowledge Economy, Korea [10028974]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10028974] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Li[Ni0.5Co0.2Mn0.3]O-2 has been synthesized by a co-precipitation method and the surface coated with nanosized LiFePO4 particles. Structural characterizations were performed by X-ray diffraction (XRD) studies and transmission electron microscopy (TEM) utilized to ensure the coating. A homemade aluminum pouch cell was assembled and studied at different C rates (0.5-20 C). At high current rates, the cell presented very stable discharge behavior. During the safety rest, great enhancement of thermal and over-charge behavior was observed for LiFePO4-coated Li[Ni0.5Co0.2Mn0.3]O-2 material. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.
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