桂林电子科技大学学报Issue(3)：249-253,5.
纳米絮状Li4Ti5O12的水热法合成及性能的研究
Hydrothermal synthesis and electrochemical performance of flocculent-like Li4 Ti5 O12
摘要
Abstract
Pure lithium titanate Li4Ti5O12was synthesized by a facile hydrothermal method using TBT and LiOH·H2O as raw materials.The as-prepared samples were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM)and BET analysis.The electrochemical performance of the sample was tested by using galvanostatic charge-discharge method.The results show that pure single-phase spinel Li4 Ti5 O12 can be obtained at a low calcination temperature of 400 ℃. The particles are nanoflocculent-like with greater specific surface area.The flocculent-like Li4 Ti5 O12 has excellent electro-chemical performance with initial discharge capacity of 155.7 mA·h/g at 0.1C rate.After cycled for 50 times at 0.1C,the capacity is remained about 143 mA·h/g.The capacity retention ratio can be up to 91.8%.关键词
水热法/纳米絮状/Li4 Ti5 O12Key words
hydrothermal method/nanoflocculent-like/Li4 Ti5 O12分类
信息技术与安全科学引用本文复制引用
张秀云,徐华蕊..纳米絮状Li4Ti5O12的水热法合成及性能的研究[J].桂林电子科技大学学报,2014,(3):249-253,5.基金项目
广西自然科学基金(2012GXNSFFA060002) （2012GXNSFFA060002）
桂林电子科技大学研究生教育创新计划(XJYC2012031) （XJYC2012031）
