石墨烯由于其独特的结构和物理化学性质在能源转化和储存领域具有良好的应用前景。为了进一步提高石墨烯基锂离子电池负极材料的储能应用，通过引入金属氧化物实现对石墨烯的功能化，不仅可以克服传统材料的缺点，还可以有效的提高材料的电化学性能。本项目拟以利用同步辐射X射线吸收谱学技术研究金属氧化物/石墨烯复合材料的微观结构，特别是材料中的界面相互作用情况，同时结合其电化学性能，深入分析微观结构对电化学性能的影响规律，明确其中的相互作用机理。通过对微观结构与电化学性能关系的探索，为高性能金属氧化物/石墨烯复合材料的设计和合成提供实验依据，对拓展石墨烯基复合材料在能源领域中的应用具有重要的指导意义。

Owing to its unique structure as well as novel physical and chemical properties, graphene holds many promising applications in energy harvesting and storage devices. To expand the applications of graphene-based electrode materials in lithium-ion batteries, anchoring metal oxides to graphene is expected to be an effective and pratical method, which combines the advntages of both graphene and metal oxides as active materials for improving the electrochemical performances, and to lower or even solve the current electrode problems of the individual component of graphene or metal oxides as active materials.Therefore, we aim to systemically to investigate the microstructures of metal oxide/graphene composites by synchrotron radiation-based X-ray absorption spectroscopy techniques, especially the interfacial interaction of metal oxides and graphene. Combined with corresponding electrochemical studies, the relationship as well as mechanism between microstructure and electrochemical property would be built. This work will provide important factors for the design and fabrication of excellent metal oxides/graphene composites for lithium-ion batteries, and the insights is essential to the development of graphene-based composites in the energy field.