Effects of Mm(NiCoAlMn)(5) hydrogen storage alloy coated with Ni-Co-P alloy by electroless plating on electrochemical properties of hydride electrodes
文献类型：期刊论文
| 作者 | Sun, CW; Guo, ZC; Tang, ZY; Guo, HT |
| 刊名 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| 出版日期 | 2003-08-01 |
| 卷号 | 13期号:4页码:938-942 |
| 关键词 | rare earths based hydrogen-storage alloys electroless Ni-Co-P alloy plating MH-Ni battery |
| ISSN号 | 1003-6326 |
| 其他题名 | Trans. Nonferrous Met. Soc. China |
| 中文摘要 | The effect of chemical plating with Ni-Co-P alloy on the properties of MH electrodes is investigated. The results show that the efficiency of storage alloy and the activation of MH electrode have been improved by introducing 1.74% cobalt in the Ni-Co-P alloy coating. The initial discharge capacity is 208 mAh/g, The maximum discharge capacity gets to 298.5 mAh/g. At the same time the cycle life of MH electrodes is improved. The discharge capacity of MH electrodes coated with Ni-Co-P is 88% of the maximum discharge capacity after 300 cycles. Whereas the discharge capacity of bare alloy electrodes retains 62% of the maximum capacity after 300 cycles. An increment of discharge capacity is mainly due to the superposition of the oxidation current of Co as well as improved efficiency of microcurrent collection. The effect of Ni-Co-P alloy coating by electroless plating on the kinetic properties of hydride electrode has been systematically investigated by electrochemical techniques. The results indicate that the kinetic properties of MH electrodes, including exchange current density, limiting current density, have been improved markedly. This improvement of kinetic properties leads to the decrease of the overpotential of anodic and cathodic polarization. |
| 英文摘要 | The effect of chemical plating with Ni-Co-P alloy on the properties of MH electrodes is investigated. The results show that the efficiency of storage alloy and the activation of MH electrode have been improved by introducing 1.74% cobalt in the Ni-Co-P alloy coating. The initial discharge capacity is 208 mAh/g, The maximum discharge capacity gets to 298.5 mAh/g. At the same time the cycle life of MH electrodes is improved. The discharge capacity of MH electrodes coated with Ni-Co-P is 88% of the maximum discharge capacity after 300 cycles. Whereas the discharge capacity of bare alloy electrodes retains 62% of the maximum capacity after 300 cycles. An increment of discharge capacity is mainly due to the superposition of the oxidation current of Co as well as improved efficiency of microcurrent collection. The effect of Ni-Co-P alloy coating by electroless plating on the kinetic properties of hydride electrode has been systematically investigated by electrochemical techniques. The results indicate that the kinetic properties of MH electrodes, including exchange current density, limiting current density, have been improved markedly. This improvement of kinetic properties leads to the decrease of the overpotential of anodic and cathodic polarization. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | PHASE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000184987700040 |
| 公开日期 | 2013-11-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5283]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China 3.Tianjin Univ, Sch Chem Engn, Tianjin 300072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, CW,Guo, ZC,Tang, ZY,et al. Effects of Mm(NiCoAlMn)(5) hydrogen storage alloy coated with Ni-Co-P alloy by electroless plating on electrochemical properties of hydride electrodes[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2003,13(4):938-942. |
| APA | Sun, CW,Guo, ZC,Tang, ZY,&Guo, HT.(2003).Effects of Mm(NiCoAlMn)(5) hydrogen storage alloy coated with Ni-Co-P alloy by electroless plating on electrochemical properties of hydride electrodes.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,13(4),938-942. |
| MLA | Sun, CW,et al."Effects of Mm(NiCoAlMn)(5) hydrogen storage alloy coated with Ni-Co-P alloy by electroless plating on electrochemical properties of hydride electrodes".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 13.4(2003):938-942. |
入库方式： OAI收割
来源：过程工程研究所
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