Ferrocene derived core-shell structural Fe₃O₄@C nanospheres for superior lithium storage properties

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• 作者：Wenhe Xie¹ ; Lili Gu ; Xiaolei Sun ; Mengting Liu ; Suyuan Li ; Qi Wang ; Dequan Liu ; Deyan He ; ^{hedy@lzu.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Fe3O4@C nanospheres ; Anode ; Full cell lithium-ion batteries ; High coulombic efficiency
• 刊名：Electrochimica Acta
• 出版年：2016
• 出版时间：1 December 2016
• 年：2016
• 卷：220
• 期：Complete
• 页码：107-113
• 全文大小：2328 K

文摘

The core-shell structural Fe₃O₄@C nanospheres have been facilely fabricated using ferrocene as a starting material.(*) The obtained architecture shows unique morphology and, as an anode of half cell lithium-ion batteries, delivers an initial coulombic efficiency as high as 80% and a high reversible capacity of 736 mAh g⁻¹ at 0.3 A g⁻¹ after 80 cycles. Even at an ultrahigh current density of 10 A g⁻¹, the reversible capacity is 234 mAh g⁻¹. Also, Fe₃O₄@C nanospheres electrode was paired with commercial LiCoO₂ electrode to design a novel full cell, which shows a superior electrochemical performance.