扫描电子显微镜
煅烧
球磨机
材料科学
拉曼光谱
烧结
阳极
电化学
溶胶凝胶
衍射
化学工程
冶金
复合材料
纳米技术
化学
催化作用
电极
光学
物理化学
工程类
物理
生物化学
作者
Guofeng Yan,Haisheng Fang,Huijuan Zhao,Guangshe Li,Yong Yang,Liping Li
标识
DOI:10.1016/j.jallcom.2008.03.017
摘要
Anode material Li4Ti5O12 was prepared by a ball milling-assisted sol–gel method. The as-prepared products were characterized by means of X-ray powder diffraction (XRD), Raman spectroscopy, scanning electron microscope (SEM), and electrochemical experiment. The results indicated that ball-milling and calcination temperature had significant effect on the formation of Li4Ti5O12. Phase-pure Li4Ti5O12 was obtained by sintering the ball-milled precursor at 800 °C for 10 h in air. The discharge capacity of phase-pure Li4Ti5O12 reached up to 143 mAh g−1 at a current density of 30 mA g−1, which was retained at 141 mAh g−1 even after 30 cycles.
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