Structure control and performance improvement of carbon nanofibers containing a dispersion of silicon nanoparticles for energy storage
    
Yazarlar (11)
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Carbon
Dergi ISSN 0008-6223 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 01-2013
Cilt / Sayı / Sayfa 51 / 0 / 185–194 DOI 10.1016/j.carbon.2012.08.027
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0008622312006793
Özet
Si/C composite nanofibers were prepared by electrospinning and carbonization using polyacrylonitrile (PAN) as the spinning medium and carbon precursor. The nanofibers were used as lithium-ion battery anodes to combine the advantages of carbon (long cycle life) and silicon (high storage capacity) materials. The effects of Si particle size, Si content, and carbonization temperature on the structure and electrochemical performance of the anodes were investigated. Results show that anodes made from a 15wt.% Si/PAN precursor with a Si particle size of 30–50nm and carbonization temperature of 800°C exhibit the best performance in terms of high capacity and stable cycling behavior. It is demonstrated that with careful structure control, Si/C composite nanofiber anodes are a promising material for next-generation lithium-ion batteries.
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