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SnO2/CNT (CNT: carbon nanotube) composite electrode materials have been successfully synthesised using the Pechini method. The crystal structures of SnO2/CNTs were identified by X-ray diffraction. The surface morphology and internal structure, as revealed by scanning electron microscopy and transmission electron microscopy, indicated that SnO2 nanoparticles were embedded in the CNT matrix or dispersed homogeneously on the outer walls of the CNTs. Furthermore, the charge–discharge properties of SnO2/CNT composite electrode materials showed that the reversible discharge capacities of the SnO2/CNT composite electrode materials were enhanced to 1062 mAh/g compared with that of pure SnO2 nanoparticles, and the capacity retention remained at approximately 91% after the 12th cycle, improving the lifetime of the lithium batteries greatly.
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Performance of SnO2/carbon nanotube composite electrode materials synthesised by the Pechini method