文章摘要
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(4):36-41
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
  
DOI:10.11921/j.issn.2095-8382.20150408
中文关键词: 锂离子电池  α-Fe2O3  负极  米粒
英文关键词: Lithium-ion Batteries  α-Fe2O3  Anode  Rice
基金项目:安徽省自然科学基金资助项目(KJ2013B208)
作者单位
武永鑫 1.亳州师范高等专科学校 安徽 亳州 236800 2.中国矿业大学材料科学与工程学院徐州 221116 
吴超 中国矿业大学材料科学与工程学院徐州 221116 
庄全超 中国矿业大学材料科学与工程学院徐州 221116 
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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结晶度较高,尺寸较均匀及分散性良好;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 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 higher crystallinity, uniform and good dispersion, promising as anode materials for lithium-ion batteries.
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