期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 506, 期 1, 页码 372-376出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.07.010
关键词
Coating materials; Nano-structured materials; X-ray diffraction; Transmission electron microscopy; Scanning electron microscopy
资金
- Korean Government (MEST) [NRF-2009-C1AAA001-0093307]
- National Research Foundation of Korea [2009-0093467, 과C6A1908] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Carbon-coated LiMnPO4 powders were prepared by ultrasonic spray pyrolysis. The effects of calcination temperature on the microstructure and electrochemical performance of C-LiMnPO4 were investigated. X-ray diffraction (XRD) studies showed that the crystallite size varied with calcination temperature. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations revealed that the calcination temperature had a strong influence on the morphology of the prepared final powder, and therefore the subsequent electrochemical performance of the material. The C-LiMnPO4 powders prepared at 650 degrees C exhibited excellent electrochemical performance with a discharge capacity of 118 mAh g(-1). (C) 2010 Elsevier B.V. All rights reserved.
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