Bacteria-inspired Fabrication of Fe₃O₄-Carbon/Graphene Foam for Lithium-Ion Battery Anodes

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• 作者：Ning Zhang^a ; Chong Chen^a ; Xiaohui Yan^a ; Yuan Huang^a ; Jia Li^a ; Jianmin Ma^b ; ^{nanoelechem@hnu.edu.cn} ; Dickon H.L. Ng^a ; ^{dng@phy.cuhk.edu.hk}
• 关键词：Bacteria ; Fe3O4 ; Graphene foam ; Lithium-ion battery ; Electrochemical properties
• 刊名：Electrochimica Acta
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：223
• 期：Complete
• 页码：39-46
• 全文大小：2105 K
• 卷排序：223

文摘

Although lithium-ion batteries are commonly used to our daily life, achieving superior properties in low-cost is still our current challenge. Here we report the fabrication of a bacteria-inspired, micro-/nanostructured Fe3O4-carbon/graphene foam hybrid material for lithium-ion battery anodes. The process employing biological adsorption is featured with low-cost and can have mass-production. Attributed to the graphene foam substrate, the fabricated micro-/nanostructure can be directly employed as a binder-free LIB anode without the need of complex treatments. The product used as an anode delivers a high reversible capacity of 1112 mAh g−1 at the current density of 100 mA g−1 even after 200 cycles, and exhibits good rate performance. These results demonstrate fabrication and electrochemical properties of a bacteria-inspired Fe3O4-carbon/graphene foam, suggesting a facile method for making anodes to be used in high-performance lithium-ion batteries.