| 武永鑫,吴超 庄全超.米粒状α-Fe2O3的制备与电化学性能研究[J].安徽建筑大学学报,2015,23(): |
| 米粒状α-Fe2O3的制备与电化学性能研究 |
| Synthesis and Characterization of rice-like α-Fe2O3/C Anode for Lithium Ion Batteries |
| 投稿时间：2015-03-27 修订日期：2015-05-06 |
| DOI： |
| 中文关键词: 锂离子电池 α-Fe2O3 负极 米粒 |
| 英文关键词: Lithium ion battery α-Fe2O3 anode rice |
| 基金项目:安徽省自然科学基金资助项目《锂离子电池新型电极材料制备及电极界面性能研究》(KJ2013B208).在《电源技术》发表《石墨烯负载NiO纳米盘的制备与储锂性能》；在《IONICS》发表《Magnetite/carbon nanotubes nanocomposite: facile hydrothermal synthesis and enhanced cycling performance and high-rate capability as anode material for lithium-ion batteries 》及此文章均为该项目阶段性成果。 |
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| 中文摘要: |
| 本文采用聚乙二醇作为活性剂,通过水热反应法制备了米粒状α-Fe2O3,并运用XRD、扫描电镜和充放电对其结构和电化学性能进行了表征。测试结果表明：当聚乙二醇用量为6.75 g时,合成的米粒状α-Fe2O3尺寸较均匀,分散性良好；用作锂电池负极时,循环50周后,其充电容量为806 mAh.g-1,容量保持率在71 %。 |
| 英文摘要: |
| In this paper, rice-like α-Fe2O3 was prepared by a simple hydrothermal method using polyethylene glycol (PEG) as surfactant, and its structure, electrochemical performance of α-Fe2O3 composite were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and charge/discharge test. The results showed that as the amount of PEG was 6.75 g, the rice-like α-Fe2O3 exhibited a charge capacity of 806 mAh.g-1 after 50 cycles, corresponding to about 71 % of the second capacity, due to its uniform and good dispersion, promising as anode materials for lithium-ion batteries. |
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