Lee, Byoung-Sun Son, Seoung-Bum Park, Kyu-Min Seo, Jong-Hyun Lee, Se-Hee Choi, In-Suk Oh, Kyu-Hwan Yu, Woong-Ryeo 2024-01-20T14:34:52Z 2024-01-20T14:34:52Z 2021-09-05 2012-05-15 0378-7753 https://pubs.kist.re.kr/handle/201004/129250 This paper reports on Si core/C shell nanofibers as an anode material for Li-ion batteries. The Si core/C shell nanofibers are synthesized using co-axial electrospinning of Si nanoparticles in styrene-co-acrylonitrile core solution and poly(acrylonitrile) shell solution combined with subsequent thermal treatments. The microstructure and elemental composition of the nanofibers are systematically examined using FE-SEM, TEM and WAXD for confirmation of the crystalline Si core/turbostratic C shell structure. In situ observation of contact-lithiation of the Si core/C shell nanofibers is carried out to investigate their mechanical durability during the electrochemical reactions. The electrochemical performances of the nanofibers as an anode are characterized by galvanostatic charge-discharge test. Due to simple processing but a well-developed core/shell structure and good electrochemical performance, the Si core/C shell nanofibers fabricated in this study offer the potential to develop enhanced Si/C nanostructured composite anodes. (C) 2012 Elsevier B.V. All rights reserved. English ELSEVIER ELECTROSPUN CARBON NANOFIBERS HIGH-CAPACITY SILICON NANOWIRES NANO-SILICON NANOCOMPOSITES ENCAPSULATION PARTICLES Fabrication of Si core/C shell nanofibers and their electrochemical performances as a lithium-ion battery anode Article 10.1016/j.jpowsour.2012.01.120 1 JOURNAL OF POWER SOURCES, v.206, pp.267 - 273 JOURNAL OF POWER SOURCES 206 267 273 scie scopus 000302755400036 2-s2.0-84857910885 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article ELECTROSPUN CARBON NANOFIBERS HIGH-CAPACITY SILICON NANOWIRES NANO-SILICON NANOCOMPOSITES ENCAPSULATION PARTICLES Si core/C shell nanofibers Co-axial electrospinning Buffering effect Electrochemical performance