中文摘要：

二条便宜合成线路被开发了制作碳涂的李 ₄ Ti ₅ 由使用 H ₂12> TiO ₃ 而不是是的锐钛矿 TiO ₂ Ti 来源通过固态反应过程。一条线路是 H ₂ TiO ₃, 李 ₂ 公司 ₃ 和沥青列在后面由高温度固态反应。其它包括 H ₂ TiO ₃ 和李 ₂ 有沥青的公司 ₃ 在真空和一样下面溶解在 furanidine 固态在混合完全被弄干以后，反应过程被跟随。微结构调查显示那 H ₂ TiO ₃ 与 10 –20nm 的主要粒子尺寸展出第二等的总数形态学。有 2 –3nm 的厚度的碳涂层层在李 ₄ Ti ₅ O ₁₂ 由二条线路综合了。周期的性能，率能力和二李 ₄ Ti ₅ O ₁₂/C composites 被执行了，它显示那李 ₄ Ti ₅ 帮助furanidine 的混合获得的 O ₁₂/C 比李 ₄ Ti ₅ O ₁₂/C 由直接稳固的混合综合了。可能的原因被讨论了。李 ₄ Ti ₅ O ₁₂/C 使用 H ₂ Ti 来源被期望比为实际应用的传统的更有竞争力的 TiO ₃ 。

英文摘要：

Two low-cost synthesis routes have been developed to fabricate carbon-coated Li4Ti5O12 by using H2TiO3 instead of anatase TiO2 as Ti source through solid-state reaction process. One route is a direct solid mixture of H2TiO3, Li2CO3 and pitch followed by high-temperature solid-state reaction. The other includes mixture of H2TiO3 and Li2CO3 with pitch dissolved in furanidine under vacuum and the same solid-state reaction procedure is followed after the mixture is totally dried. Microstructural investigations indicate that H2TiO3 exhibits secondary aggregates morphology with primary particle sizes of 10-20 nm. Carbon-coating layers with thickness of 2-3 nm have been observed on Li4Ti5O12 synthesized by the two routes. Cyclic performance, rate capability and electrochemical impedance spectrum of the two Li4Ti5O12/C composites have been performed, which indicate that Li4Ti5O12/C obtained by furanidine-assisted mixture exhibits better electrochemical performance than Li4Ti5O12/C synthesized by direct solid mixture. The possible reasons have been discussed. The low-cost synthesis routes of Li4Ti5O12/C using H2TiO3 as Ti source are expected to be more competitive than the traditional one for practical applications.