MATEC Web Conf.
Volume 130, 2017The International Conference on Composite Material, Polymer Science and Engineering (CMPSE2017)
|Number of page(s)||5|
|Published online||25 October 2017|
Synthesis and Evaluation of Olivine Material Coated with Carbon
Department of Materials Science, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, JAPAN
a Corresponding author: email@example.com
Lithium iron phosphate, LiFePO4, was synthesized by hydrothermal process and subsequently coated with carbon by the thermal decomposition of acetylene gas. The products were characterized by XRD, SEM, and TG-DTA. As-synthesized LiFePO4 was submicron sized plate-like particle. After heating at various temperature in nitrogen atmosphere, the particle size and the crystalline sizes were grown with increasing the heating temperature. Above 700°C, the grain growth was remarkably. Carbon coating temperature was set at 500-600°C because of fine particle and good crystallinity. As a carbon raw material, acetylene gas was flowing to the as-synthesized LiFePO4 in nitrogen atmosphere, and the LiFePO4/C composite was obtained. TG curves showed weight loss above 500°C, which was thought to be associated with carbon layer composition.
© The authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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