Shin, Eon Sung Kim, Min-Seop Cho, Won Il Oh, Si Hyoung 2024-01-20T12:00:36Z 2024-01-20T12:00:36Z 2021-09-05 2013-08 1931-7573 https://pubs.kist.re.kr/handle/201004/127803 The intrinsic low conductivity of sulfur which leads to a low performance at a high current rate is one of the most limiting factors for the commercialization of lithium-sulfur battery. Here, we present an easy and convenient method to synthesize a mono-dispersed hollow carbon sphere with a thin graphitic wall which can be utilized as a support with a good electrical conductivity for the preparation of sulfur/carbon nano-composite cathode. The hollow carbon sphere was prepared from the pyrolysis of the homogenous mixture of the mono-dispersed spherical silica and Fe-phthalocyanine powder in elevated temperature. The composite cathode was manufactured by infiltrating sulfur melt into the inner side of the graphitic wall. The electrochemical cycling shows a capacity of 425 mAh g(-1) at 3 C current rate which is more than five times larger than that for the sulfur/carbon black nano-composite prepared by simple ball milling. English SPRINGEROPEN Sulfur/graphitic hollow carbon sphere nano-composite as a cathode material for high-power lithium-sulfur battery Article 10.1186/1556-276X-8-343 1 NANOSCALE RESEARCH LETTERS, v.8 NANOSCALE RESEARCH LETTERS 8 N scie scopus 000323330000001 2-s2.0-84887314663 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Science & Technology - Other Topics Materials Science Physics Article PHTHALOCYANINE PERFORMANCE NANOTUBES CAPACITY CATALYST GROWTH Lithium-sulfur battery Hollow carbon sphere Graphitic carbon Nano-composite Cathode