| 二次铁电池正极材料铁酸钡的制备及性能初步研究 |
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| 引用本文： | 夏同驰,李晓峰,董会超,王力臻,王润东,袁娜.二次铁电池正极材料铁酸钡的制备及性能初步研究[J].功能材料,2010,41(4). |
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| 作者姓名： | 夏同驰 李晓峰 董会超 王力臻 王润东 袁娜 |
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| 作者单位： | 郑州轻工业学院,材料与化工学院,河南省表界面科学重点实验室,河南,郑州,450002 |
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| 基金项目： | 河南省教育厅科技攻关资助项目(2009A530006) |
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| 摘 要： | 用高温固相法制备了BaFe2O4。采用扫描电子显微镜(SEM)及X射线衍射仪(XRD)对产物的表面形态和结构进行了表征;以循环伏安、模拟电池恒电流充放电实验研究了BaFe2O4电极的电化学性能。结果表明,以BaFe2O4为正极充电起始物质,与贮氢合金电极组成二次碱性电池,在1.2V附近有一个平稳的放电平台,具有较好的电化学活性。合成时反应物的比例对产物的结构和电化学性能有明显的影响,在900℃,灼烧10h的条件下,以反应物Fe2O3与Ba(OH)2摩尔比为1:1.5时获得的产物性能较好。
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| 关 键 词： | 铁电池 正极材料 电化学性能 BaFe_2O_4 |
Preparation of barium ferrite and its properties as positive material for second iron battery |
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| XIA Tong-chi,LI Xiao-feng,DONG Hui-chao,WANG Li-zhen,WANG Run-dong,Yuan Na.Preparation of barium ferrite and its properties as positive material for second iron battery[J].Journal of Functional Materials,2010,41(4). |
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| Authors: | XIA Tong-chi LI Xiao-feng DONG Hui-chao WANG Li-zhen WANG Run-dong Yuan Na |
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| Affiliation: | Henan Provincial Key Laboratory of Surface & Interface;Zhengzhou University of Light Industry;Zhengzhou 450002;China |
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| Abstract: | Barium ferrite is prepared by high-temperature solid reaction process in this paper.The structure and morphology of the products are characterized by using X-ray diffraction (XRD)and scanning electronic microscope (SEM).The electrochemical properties of the barium ferrite electrodes are studied by using cyclic voltammetry and galvanostatic charge-discharge tests.The results show that for the second alkaline battery with BaFe2O4 as the positive material and hydrogen absorbing alloy as the negative material,i... |
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| Keywords: | iron battery positive material electrochemical property barium ferrite |
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