¦Ç-Fe₂O₃ spindles as anode materials for lithium-ion batteries with excellent stable and high electrochemical performance

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• 作者：Cui Shi ; Tai Cao ; Chuanbao Cao ; Dongjie Wu ; Yanan Li ; Meina Wang ; Wei Mo
• 关键词：Nanoparticles ; Porous materials ; Crystal structure
• 刊名：Materials Letters
• 出版年：2012
• 出版时间：15 September, 2012
• 年：2012
• 卷：83
• 期：Complete
• 页码：35-38
• 全文大小：720 K

文摘

¦Ç-Fe₂O₃ composed of many sub-micrometer spindle-like particles has been successfully synthesized by a simple solvent-assisted precipitation route. The electrode of the as-obtained ¦Ç-Fe₂O₃ powder shows a stable and ultrahigh reversible capacity of over 1200 mAh/g during up to 10 cycles at 100 mA/g and excellent rate capability, owing to the small and uniform grain size, mesoporous structure and advantageous crystallinity, which can be confirmed by SEM and TEM results. Based on the experimental results, it is believable that the ¦Ç-Fe₂O₃ prepared by this method is a promising anode material for high energy-density lithium-ion batteries.