| Surface Modification for Metal Hydride Electrode of Ni／MH Battery |
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| 引用本文： | 杨凯,吴锋,李丽,陈实. Surface Modification for Metal Hydride Electrode of Ni／MH Battery[J]. 北京理工大学学报(英文版), 2005, 14(1): 75-78 |
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| 作者姓名： | 杨凯 吴锋 李丽 陈实 |
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| 作者单位： | SchoolofChemicalEngineeringandEnvironment,BeijingInstituteofTechnology,Beijing100081,China |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | A novel method was applied to the surface modification of the metal hydride (MH) electrode of the Ni/MH battery. The electrode was plated with a thin silver film by using plasma technology and its effect on the performance of the Ni/MH battery was examined. Charge-discharge test proved that the battery with modified electrode exhibits a better high-rate dischargeability and chargeability than the battery with untreated electrode. The battery with modified electrode exhibits satisfactory durability. After 500 cycles, the capacities of the batteries with modified and unmodified electrode are 90.1% and 82.3 % of their original capacities. The inner pressure test shows that the battery with modified electrode displays a much lower inner gas pressure on charging. The experimental results demonstrate that this method is an effective way for the surface modification of the electrode of the Ni/MH battery.
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| 关 键 词： | 碱性电池 金属氢化物 电极 镍 |
| 收稿时间： | 2003-09-30 |
Surface Modification for Metal Hydride Electrode of Ni/MH Battery |
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| YANG Kai,WU Feng,LI Li and CHEN Shi. Surface Modification for Metal Hydride Electrode of Ni/MH Battery[J]. Journal of Beijing Institute of Technology, 2005, 14(1): 75-78 |
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| Authors: | YANG Kai WU Feng LI Li CHEN Shi |
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| Affiliation: | School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A novel method was applied to the surface modification of the metal hydride (MH) electrode of the Ni/MH battery. The electrode was plated with a thin silver film by using plasma technology and its effect on the performance of the Ni/MH battery was examined. Charge-discharge test proved that the battery with modified electrode exhibits a better high-rate dischargeability and chargeability than the battery with untreated electrode. The battery with modified electrode exhibits satisfactory durability. After 500 cycles, the capacities of the batteries with modified and unmodified electrode are 90.1% and 82.3% of their original capacities. The inner pressure test shows that the battery with modified electrode displays a much lower inner gas pressure on charging. The experimental results demonstrate that this method is an effective way for the surface modification of the electrode of the Ni/MH battery. |
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| Keywords: | surface modification plasma technology electrode Ni/MH battery |
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