Fast synthesis of core-shell LiCoPO4/C nanocomposite via microwave heating and its electrochemical Li intercalation performances |
| |
Authors: | HH Li J Jin JP Wei Z Zhou J Yan |
| |
Institution: | Institute of New Energy Material Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China |
| |
Abstract: | A very simple and rapid method for synthesizing LiCoPO4/C nanocomposite has been developed via microwave heating. X-ray diffraction confirmed that nanosized olivine LiCoPO4 was successfully synthesized. Scanning electron microscopy and transmission electron microscopy verified that LiCoPO4 displays small powders with an average size of ~150 nm and is also coated with uniform amorphous carbon film of ~10 nm in thickness. Compared with pure LiCoPO4, LiCoPO4/C composite presented enhanced electrochemical Li-ion intercalation performances. Cyclic voltammetric and electrical tests disclosed that the Li-ion diffusion, the reversibility of lithium extraction/insertion and electrical conductivity were significantly improved in LiCoPO4/C composite. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|