α-Fe2O3 nanoplates with superior electrochemical performance for lithium-ion batteries
α-Fe2O3 nanoplates with superior electrochemical performance for lithium-ion batteries
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DOI：
10.1016/j.gee.2018.01.005
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发表时间：
2018-04
影响因子：
13.3
通讯作者：
Li Xu;Li Xu;Yuhui Tian;Tiefeng Liu;Henan Li;Jingxia Qiu;Sheng Li;Hua-ming Li;S. Yuan;Shanqing Zhang
中科院分区：
文献类型：
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作者：
Li Xu;Li Xu;Yuhui Tian;Tiefeng Liu;Henan Li;Jingxia Qiu;Sheng Li;Hua-ming Li;S. Yuan;Shanqing Zhang
α-Fe_2O_3具有理论容量高、耐腐蚀性强、环境友好、可获得性好、成本低等优点，作为锂离子电池(LIB)的负极材料，其研究逐渐受到人们的重视。选择制备了一种基于α-Fe2O3纳米板的高性能锂离子电池正极材料。以铁离子基离子液体为铁源和模板，可以制备出α-Fe2O3纳米板材。作为锂离子电池负极的α-Fe_2O_3纳米板材在0.5A/−_1时的比容量约为1950×10~(-3)×10~(-6)−_3，超过了α-Fe_2O_3的理论容量。由于独特的纳米板结构和阿拉伯树胶作为粘结剂，α-Fe2O_3纳米板还表现出高倍率性能和优异的循环性能。
On account of the high theoretical capacity, high corrosion resistance, environmental benignity, abundant availability and low cost, the research on α-Fe2O3has been gradually fastened on as promising anodes materials toward lithium-ion batteries (LIBs). A high-performance anode for LIBs based on α-Fe2O3nanoplates have been selectively prepared. The α-Fe2O3nanoplates can be synthesized with iron ion-based ionic liquid as iron source and template. The α-Fe2O3nanoplates as the anode of LIBs can display high capacity of around 1950 mAh g−1at 0.5 A g−1which have exceeded the theoretical capacity of α-Fe2O3. On account of unique nanoplate structures and gum arabic as binder, the α-Fe2O3nanoplates also exhibit high rate capability and excellent cycling performance.