Knowledge Management System Of Institute of process engineering,CAS
| Effects of Mm(NiCoAlMn)(5) hydrogen storage alloy coated with Ni-Co-P alloy by electroless plating on electrochemical properties of hydride electrodes | |
| Alternative Title | Trans. Nonferrous Met. Soc. China |
| Sun, CW; Guo, ZC; Tang, ZY; Guo, HT | |
| 2003-08-01 | |
| Source Publication | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| ISSN | 1003-6326 |
| Volume | 13Issue:4Pages:938-942 |
| Abstract | 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.; 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. |
| Keyword | Rare Earths Based Hydrogen-storage Alloys Electroless Ni-co-p Alloy Plating Mh-ni Battery |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | PHASE |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000184987700040 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/5283 |
| Collection | 研究所（批量导入） |
| Affiliation | 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 |
| Recommended Citation 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. |
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| EffectsofMm_NiCo_省略_（186KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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