中文摘要：

以TiO2和Li2CO3为原料，NaCl熔剂法合成了新型锂离子电池负极材料NaLiTi3O7，通过X射线衍射（XRD）、扫描电镜（SEM）及充放电测试对比，考察了不同原料配比条件下产物的结构及电化学性能。研究结果表明。产物物相组成和电化学性能随原料配比变化。在900℃下烧结12h，原料组成中锂钛摩尔比（nu／nn）为0．8时所制备的样品为纯正交相的NaLiTi3O7,颗粒分布均匀，平均粒径约1μm；目标材料的充放电平台在1．3V（vs．Li＋／Li）左右，具有优异的循环稳定性，在175mA／g电流密度下循环100次。容量保持率为90％。

英文摘要：

A novel anode material NaLiTi3OTwas prepared by NaCI flux using TiO2 and Li2CO3 as raw materials. The structure and electrochemical performance of products under different ratios of raw materials were investigated by X-ray diffraction （XRD）, scanning electron microscopy （SEM） and charge-discharge tests. The results show the phase composition and electrochemical performance of the products are greatly dependent on the raw materials molar ratio （nLi/nTi）. When the molar ratio of Li and Ti equals to 0.8, the prepared products are pure orthorhombic NaLiTi307 with well-dispersed particles after fabricating at 900 0（3 for 12 h. The particles average size is 1μm. Oriented-material has a discharge/charge platform of 1.3 V （vs. Li＋/Li）. The prepared material exhibits excellent cycling stability with the capacity retention of 90% over 100 cycles at 175 mA/g.