Nano letters 制备核壳碳包覆纳米电极材料的通用技术?ABSTRACT: Here, we develop a novel strategy for the fabrication of Li4Ti5O12/carbon core?shell electrodes using metal oxyacetyl acetonate as titania and single-source carbon. Importantly, this novel approach is simple and general, with which we have successfully produce nanosized particles of an olivine-type LiMPO4 (M = Fe, Mn, and Co) core with a uniform carbon shell, one of the leading cathode materials for lithium-ion batteries. Metal acetylacetonates first decompose with carbon coating the particles, which is followed by a solid state reaction in the limited reaction area inside the carbon shell to produce the LTO/C (LMPO4/C) core?shell nanostructure. The optimum design of the core?shell nanostructures permits fast kinetics for both transported Li+ ions and electrons, enabling high-power performance.示意图.jpg查看更多0个回答 . 29人已关注