纳/微米分级结构能够提高电极反应面积和缩短离子固相扩散路径，缓解材料嵌/脱锂的体积变化应力，能促使材料性能充分发挥，被视为理想的锂离子电池电极结构。.本项目拟采用水（溶剂）热法制备LiMnPO4纳米结构单元，利用自组装过程空间各向异性，构筑具有三维网状、多孔状、花状等纳/微米分级结构正极材料。通过系统研究溶液组成和反应条件对材料结构、形貌的影响，探讨晶体的成核和生长机理，揭示组装过程的热力学和动力学过程规律，实现组装体结构的分级（时间）与动态调控。.通过对所合成材料进行充放电测试，考察结构、形貌对其嵌锂性能的影响；采用Ni、Co、V等元素部分取代Mn来调控材料的嵌锂动力学性能和放电电压平台，开拓材料的应用前景；并应用先进表征手段探讨材料的“构-效”关系。本研究将为完善LiMnPO4材料制备科学提供数据支撑，为探索新型高性能嵌锂阴极材料提供理论指导。因此，具有重要的应用和基础研究价值。

Nano/micro hierarchical structure could enlarge the area of electrode reaction and shorten the diffusion path of lithium-ion in the solid state. Moreover, it could assimilate the volume change stress for the intercalation/deintercalation of Li+, and make full use of the electrochemical lithium intercalation performance. Therefore，it is regarded as an ideal electrode structure for Li-ion battery..The project will adopt hydrothermal(solvothermal) method to prepare LiMnPO4 nanostructures unit, and utilize the spatially anisotropic during self-assembly process to construct nano/micro hierarchical cathode materials, such as three-dimensional network structure, porous structure, flower-like structure etc.. By systematically investigating the influence of solution composition and reaction conditions on the structures and morphology of materials, discussing the mechanism of nucleation and growth, revealing the laws of thermodynamics and kinetics of the assembly process to achieve hierarchical assembly structure (time) and dynamic control..Through charge/discharge testing of the as-synthesized materials, to inspect the influence of the structure, morphology on the electrochemical lithium intercalation performance; Mn element of LiMnPO4 material will partially replaced by Ni, Co, V etc., in order to tune lithium intercalation kinetics and discharge voltage platform, and expand the application prospect of material. Furthermore, advanced characterization methods will be employed to explore the“Structure-Activity”relationship. This study will provide a synthesis route for high-performance LiMnPO4, and theoretical guidance for exploring novel lithium intercalation cathode materials. Thus, this work has important value for both basic and applied research.