In this work, we showed an easy and convenient method to synthesize a hollow carbon sphere with a thin graphitic wall which can provide a support with a good electrical conductivity for the preparation of sulfur/carbon composite cathode. The hollow carbon sphere was prepared by heating the homogenous mixture of mono-dispersed spherical silica and Fe-phthalocyanine powders in elevated temperature. The composite cathode was manufactured by infiltrating sulfur melt into the inner side of the graphitic wall at 155°C. The electrochemical cycling shows a capacity of 425 mAh g−1 at a 3 C current PKC412 solubility dmso rate which is more than five times larger than that for the sulfur/carbon
black nano-composite prepared by simple ball milling. Authors’ information SHO is currently working as a senior researcher at the Korea Institute of Science and Technology and an active member of the Selleckchem AZD8931 Korean Electrochemical Society and the Korean Chemical Society. Acknowledgements This work was supported by the Energy Efficiency and Resources Program of the Korea Institute of Energy Technology Evaluation and Planning
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