| Surface modification for La1-xCex(NiCoMnAl)(5) hydride electrode by hot charging in potassium borohydride solution |
| M. F. Wen; L. Chen; B. Yu; M. Tong; D. M. Chen; Y. W. Tian; Y. C. Zhai
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| 2000
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| 发表期刊 | Transactions of Nonferrous Metals Society of China
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| ISSN | 1003-6326
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| 卷号 | 10期号:5页码:595-598 |
| 摘要 | The La1-xCex(NiCoMnAl)(5) alloy electrodes were treated by hot charging in alkaline aqueous solution containing KBH4. The activation behavior, hydrogen diffusion coefficient and maximum discharging capacity, high rate discharging capability of alloy electrodes were tested. The surface morphology and element content were observed by scanning electron microscope. The results show that the alloy electrode is fully activated after the second charging-discharging cycle and has a high rate discharging capability of 85 % at 900 mA/g. The surface has a lot of micro-cracks and hydrogen diffusion coefficient is about (2 similar to 3) x 10(-9) cm(2)/s. Therefore, this method can markedly improve activation behavior and high rate charging capacity of the alloy electrode. The mechanism of this surface modification of the alloy electrode is also discussed. |
| 部门归属 | chinese acad sci, inst met res, shenyang 110015, peoples r china. northeastern univ, coll mat & met, shenyang 110006, peoples r china.
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| 关键词 | Hydrogen Storage Alloy
Surface Modification
Kbh4 Alkaline Aqueous
Solution
Hot Charging Treatment
Hydrogen Storage Alloy
Alkaline-solution
Reducing Agent
Batteries
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| URL | 查看原文
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| WOS记录号 | WOS:000089657100006
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/37202
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
M. F. Wen,L. Chen,B. Yu,et al. Surface modification for La1-xCex(NiCoMnAl)(5) hydride electrode by hot charging in potassium borohydride solution[J]. Transactions of Nonferrous Metals Society of China,2000,10(5):595-598.
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| APA |
M. F. Wen.,L. Chen.,B. Yu.,M. Tong.,D. M. Chen.,...&Y. C. Zhai.(2000).Surface modification for La1-xCex(NiCoMnAl)(5) hydride electrode by hot charging in potassium borohydride solution.Transactions of Nonferrous Metals Society of China,10(5),595-598.
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| MLA |
M. F. Wen,et al."Surface modification for La1-xCex(NiCoMnAl)(5) hydride electrode by hot charging in potassium borohydride solution".Transactions of Nonferrous Metals Society of China 10.5(2000):595-598.
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