介孔Li4Ti5O12/石墨烯的合成、性能及工艺研究

项目名称： 介孔Li4Ti5O12/石墨烯的合成、性能及工艺研究

项目编号： No.21466036

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 有机化学

项目作者： 黄玉代

作者单位： 新疆大学

项目金额： 60万元

中文摘要： 介孔Li4Ti5O12/石墨烯因具有电解液容易渗透，Li+和电子传输快等优点而引起研究者的极大兴趣，但其合成困难，性能和制备工艺之间的关系尚不清楚。本项目拟采用不同的方法制备介孔Li4Ti5O12/石墨烯，测试其电化学性能，研究制备工艺参数对其组成、结构和形貌等的影响，进而探讨该类材料的组成、结构和形貌等与其电化学性能之间的关系，优化工艺参数，建立数学模型，优选出电化学性能优良的材料，确定这些材料的最佳合成工艺。这些工作一方面将在理论上发展并丰富介孔Li4Ti5O12的合成方法学；另一方面通过优化组装方法以及实验工艺参数，有利于调制石墨烯基复合材料固有的性能指标，确定该类材料合成的最佳工艺条件，实现介孔Li4Ti5O12/石墨烯负极材料的可控制备，为设计、合成高性能的锂离子电池材料提供理论基础和科学依据。

中文关键词： 介孔；Li4Ti5O12；石墨烯；合成；性能；工艺

英文摘要： Owning to Li+ and electron can easily transport, and the electrolyte can easily penetrate into their porous stucture, mesoporous Li4Ti5O12/graphene have aroused intense research interest. But it is very difficult to prepare the materials, the relationship between the properties and the synthesis technic of mesoporous Li4Ti5O12/graphene isn't clear. The project is to prepare mesoporous Li4Ti5O12/graphene by different methods, investigate the electrochemical properties of the materials, study the effect of technic parameter to composition, structure and morphology, further more, discuss the relationship between electrochemical properties and composition, structure and morphology of the materials. Optimize synthesis technic parameter of mesoporous Li4Ti5O12/graphene. Construct the mathematical model. Select materials with better electrochemical properties and confirm the best synthesis technic of them. On the one hand, the work will develop the synthetic methods of mesoporous Li4Ti5O12 in theory to realize the controllable preparation of mesoporous Li4Ti5O12/graphene anode materials; on the other hand, it will also provide theoretical and scientific basis for the development of high-performance materials for lithium ion batteries by optimizing the technic parameters of the assembly and testing process, which conducives to modulate the inherent performance of the graphene composites and confirm the best synthesis technic conditions of the materials.

英文关键词： mesoporous Li4Ti5O12;graphene;synthesis;properties;technic