正极材料的纳米化会提高电池的功率密度，但也会降低电池的体积能量密度。多孔微球结构可以同时兼顾到正极材料的功率密度与体积能量密度，但目前对多孔微球正极材料高功率密度的研究还面临着巨大挑战。本项目以LiMnPO4/C多孔微球为研究对象，进行多孔微球的可控构筑及储锂性能研究。拟采用溶剂热法制备多孔微球，揭示工艺参数及条件对LiMnPO4/C多孔微球的微球结构、碳层结构、LiMnPO4与碳纳米管间的界面结合、LiMnPO4晶体结晶取向的影响规律，阐明生长机理，实现LiMnPO4/C多孔微球的可控构筑，为多孔微球的可控制备提供参考依据；揭示微球结构、碳层结构、界面结合及结晶取向对电池倍率性能的影响规律，获得国际先进水平的高倍率性能，阐明LiMnPO4/C多孔微球能够兼顾高功率密度与高体积能量密度的作用机理，为“双高”锂离子电池的开发设计和性能预测提供理论支持。

Nanocrystallization of cathode is in favor of the high power density for lithium ion battery. However, its volumetric energy density can be inevitably decreased. The power density and the volumetric energy density for cathodes with structures of porous microspheres can be considered simultaneously. Nevertheless, it is a great challenge to achieve the high power density for cathodes with structures of porous microspheres according to the current literatures. Porous microspheres of LiMnPO4/C cathodes as our research object are studied for controllable construction and lithium storage property. Here, we intend to synthesize porous microspheres of LiMnPO4/C cathodes by solvothermal method. The effect laws of the processes parameters and conditions on the structures of the microspheres and the carbon lays of the porous microspheres of LiMnPO4/C cathodes, the interfacial bonds with carbon nanotubes and crystallographic orientations of LiMnPO4 crystals are revealed. The growth mechanism for the porous microspheres of LiMnPO4/C cathodes is elucidated. The corresponding results are expected to achieve controllable construction of the porous microspheres of LiMnPO4/C which can provide the reference for controllable fabrication of porous microspheres. Furthermore, the influence rules of the structures of the microspheres, the carbon lays, the interfacial bonds and crystallographic orientations on the rate capabilities of the porous microspheres of LiMnPO4/C cathodes are demonstrated. The high rate capabilities with the international advanced level are obtained. The mechanism with the high volumetric energy density as well as the high power density for the porous microspheres of LiMnPO4/C cathodes is elucidated, which may afford the theoretical support for the developing design and the performance prediction of lithium ion batteries with the double high performance.