Ethylene Glycol-Assisted Synthesis of LiFePO4 by Traditional Solid-State Method
Abstract: Lithium-ion battery cathode material LiFePO4/C was synthesized by Li2CO3, FeC2O4·2H2O, NH4H2PO4 ina traditional way, and ethylene glycol was used as surfactant for advancing electrochemical performance. The crystalline structure, morphology and chemical composition of LiFePO4/C particles were characterized by X-ray diffraction, scan- ning electron microscopy and electrochemical performance was characterized by constant-current charge-discharge test technique, respectively. In addition, the effects of ethylene glycol on the crystal growth direction were discussed in this paper. The results show that the grains of LiFePO4/C which are synthesized with ethylene glycol-assisted present plate- type accumulation. The charge-discharge potential flats present smooth in different current density (0.1C,0.5Cand1.0C) and the cycle abilityis stable.
文章引用: 李艳 , 刘英才 , 王洁 (2013) 乙二醇辅助固相法合成LiFePO4。 材料科学， 3， 230-235. doi: 10.12677/MS.2013.35041
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