首先采用化学还原法制备了CoZnB非晶合金,随后用机械球磨法将其引入到稀土基合金La0.7Mg0.3Ni3.5中制备成复合物,考察了CoZnB的添加量对La0.7Mg0.3Ni3.5合金电化学性能的影响.实验结果表明,加入CoZnB非晶合金后,复合物合金电极首次放电即可达到最大放电容量,高倍率放电性能得到了显著改善,电荷转移阻抗和极限电流密度均高于La0.7Mg0.3Ni3.合金电极.复合物合金电极La0.7Mg0.3Ni3.5-CoZnB(质量比1∶1)的最大放电容量高达487.5 mAh/g,800 mA/g放电电流密度下的复合物合金电极La0.7Mg0.3Ni3.5-CoZnB(质量比2∶1)的高倍率放电性能(HRD)可达94.8％.
参考文献
| [1] | Yongfeng Liu;Hongge Pan;Mingxia Gao.Advanced hydrogen storage alloys for Ni/MH rechargeable batteries[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,201113(13):4743-4755. |
| [2] | 杭州明;邴智刚;许恒;翁文祥.Ti0.4Zr0.1V1.1Mn0.5Ni0.4Crx （x=0,0.1,0.2,0.3）储氢合金的微观结构和电化学性能[J].材料科学与工程学报,2014(1):52-57. |
| [3] | 黄秋姬;易双萍;邓耀敏;黄军.电极材料中氢氧化钙及碳纳米管的添加对镍氢电池电化学性能的影响[J].材料科学与工程学报,2014(1):112-116,111. |
| [4] | Liu, Y.;Wei, S.;Xu, B.;Wang, Y.;Tian, H.;Tong, H..Effect of heat treatment on microwave absorption properties of Ni-Zn-Mg-La ferrite nanoparticles[J].Journal of Magnetism and Magnetic Materials,2014:57-62. |
| [5] | 朱春玲;阎汝煦;王大辉;康龙;章应;罗永春.表面包覆镍处理La0.67Mg0.33Ni2.5Co0.5贮氢合金电极的电化学性能[J].稀有金属材料与工程,2006(4):573-576. |
| [6] | Hai-Liang Chu;Shu-Jun Qiu;Li-Xian Sun;Yao Zhang;Fen Xu;Tao Jiang;Wei-Xue Li;Min Zhu;Wang-Yu Hu.The improved electrochemical properties of novel La-Mg-Ni-based hydrogen storage composites[J].Electrochimica Acta,200724(24):6700-6706. |
| [7] | Shu-Jun Qiu;Hai-Liang Chu;Yao Zhang;Li-Xian Sun;Fen Xu;Zhong Cao.The Electrochemical Performances Of Ti-v-based Hydrogen Storage Composite Electrodes Prepared By Ball Milling Method[J].International journal of hydrogen energy,200824(24):7471-7478. |
| [8] | 印龙;王新华;李寿权.非晶Ti-Al储氢电极合金的制备及其电化学性能[J].材料科学与工程学报,2014(2):194-199. |
| [9] | 李瑞;胡泽忠;刘永锋;高明霞;潘洪革.La0.7Mg0.3Ni2.65Co0.75-xMn0.1Six储氢电极合金的结构和电化学性能[J].材料科学与工程学报,2013(3):372-375,460. |
| [10] | Kohno T.;Yoshida H..Hydrogen storage properties of new ternary system alloys: La_2MgNi_9, La_5Mg_2Ni_(23), La_3MgNi_(14)[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,20002(2):L5-L7. |
| [11] | Wang, YD;Ai, XP;Yang, HX.Electrochemical hydrogen storage behaviors of ultrafine amorphous Co-B alloy particles[J].Chemistry of Materials,200424(24):5194-5197. |
| [12] | Yi Liu;Yijing Wang;Lingling Xiao;Dawei Song;Yaping Wang;Lifang Jiao;Huatang Yuan.Structure and electrochemical behaviors of a series of Co-B alloys[J].Electrochimica Acta,20085(5):2265-2271. |
| [13] | 郜余军;马立群;杨猛;赵相玉;丁毅.球磨法制备LaNi4Al-CoB复合合金电化学性能研究[J].有色金属,2011(2):42-45. |
| [14] | Ratnakumar BV.;Bowman RC.;Hightower A.;Fultz B.;Witham C..ELECTROCHEMICAL STUDIES ON LANI5-XSNX METAL HYDRIDE ALLOYS[J].Journal of the Electrochemical Society,19968(8):2578-2584. |
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