Controllable synthesis of micronano-structured LiMnPO4/C cathode with hierarchical spindle for lithium ion batteries |
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Authors: | Yanbing Cao Lian Xu Xiaoming Xie Kunchang Mu Yongqiang Xie Zhichen Xue Guorong Hu Ke Du Zhongdong Peng |
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Affiliation: | School of Metallurgy and Environment, Central South University, Changsha 410083, PR China |
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Abstract: | LiMnPO4/C with hierarchical spindle structures was synthesized by a facile solvothermal method at 180?℃ for 10?h. The morphology and structure of the prepared materials were controlled through the adjustment of hexamethylenetetramine (HMT). The synthesized materials were investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Quantachrome instrument(Quabrasorb SI-3MP) and Fourier transform infrared spectroscopy (FTIR), and so on. The prepared LiMnPO4/C exhibits good electrochemical performance, for instance, there are 153.2, 126.3, 110.2?mA?h?g?1 at 0.05?C, 1?C, 2?C respectively. The promising properties of the materials results from unique hierarchical nanostructures and the uniform thin carbon coating of particle surface, which improve the ionic and electronic transfer of LiMnPO4. |
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Keywords: | Solvothermal method Porous hierarchical spindle structure |
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