作者: Yan Feng , Yuzhen Wei , Zhe Jia , Yuliang Zhang , Vincent Battaglia
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摘要: Author(s): Feng, Y; Wei, Jia, Z; Zhang, Battaglia, V; Liu, G | Abstract: Polymer-derived and micro-cracked silicon carbonitride (SiCN) materials have been successfully synthesized via pyrolyzing from poly(diphenylcarbondiimide) post-treating with different molar concentration of sodium hydroxide (NaOH) aqueous solution (0.2-5.0 mol L ). The as-prepared SiCN used as anodes for lithium ion batteries. Electrochemical charge-discharge measurements indicate that the 0.5 NaOH treating (SiCN-0.5-NaOH) shows best electrochemical performance. It exhibits a high initial specific extraction capacity 1159.5 mAh g stable 900 at current density 40 mA . morphology structure show its surface is rough, many micro-sized cracks are formed. special performances NaOH-treated attributed to non-conductive Si N phase elimination matrix by treatment, transfer channel enrichment formation micro-cracks. −1 3 4