K. Ouardi, C. Hakim, M. Dahbi, M. Guler, H. Akbulut, A. Bouari, I. Saadoune
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Abstract
A green and friendly synthesis method was used to prepare Anatase TiO2and the electrochemical performances of this metal oxide as negative electrode for lithium ion batteries were studied. X-Ray diffraction analysis confirm the formation of Titanium Oxide with anatase type structure with a small content of brookite phase. The spherical shape of the particles is clearly highlighted using Scanning Electron Microscopy. The prepared TiO2electrode delivers a discharge capacity of 290 mAh g−1in the first cycle under C/10 current rate. Indeed, a coulombic efficiency higher than 95 and a capacity retention of 85% is obtained after 100 cycles.
采用绿色环保的合成方法制备了锐钛矿tio2，并对该金属氧化物作为锂离子电池负极的电化学性能进行了研究。x射线衍射分析证实形成的氧化钛具有锐钛矿型结构，含少量板岩相。使用扫描电子显微镜可以清楚地突出显示颗粒的球形。所制备的tio2电极在C/10电流下的第一次循环放电容量为290 mAh g−1。经过100次循环后，库仑效率高于95，容量保持率为85%。
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