| 高功率镍氢电池La1-xMgx(NiCoAl)3.6金属氢化物电极的电化学性能研究 |
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| 引用本文： | 张新波,赵敏寿.高功率镍氢电池La1-xMgx(NiCoAl)3.6金属氢化物电极的电化学性能研究[J].高等学校化学学报,2003,24(9):1680-1682. |
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| 作者姓名： | 张新波 赵敏寿 |
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| 作者单位： | 中国科学院长春应用化学研究所稀土化学与物理重点实验室, 长春 130022 |
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| 基金项目： | 国家自然科学基金，20171042， |
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| 摘 要： | MH-Ni电池具有电化学比能量高、耐过充/放电性能好、无记忆效应和环境友好等优点而得到广泛应用.金属氢化物电极是MH-Ni电池的核心材料,其研究工作主要集中在稀土AB5系、钛系、锆系和镁基等合金作为MH-Ni电池金属氢化物电极方面.但这些体系合金的电化学容量低.
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| 关 键 词： | 金属氢化物电极 电化学性能 高倍率放电 |
| 文章编号： | 0251-0790(2003)09-1680-03 |
| 收稿时间： | 2002-05-22 |
| 修稿时间： | 2002年5月22日 |
Investigation on Electrochemical Properties of La1-xMgx(NiCoAl)3.6 Alloy Employed as Negative Electrode in High Power MH-Ni Battery |
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| ZHANG Xin-Bo,ZHAO Min-Shou.Investigation on Electrochemical Properties of La1-xMgx(NiCoAl)3.6 Alloy Employed as Negative Electrode in High Power MH-Ni Battery[J].Chemical Research In Chinese Universities,2003,24(9):1680-1682. |
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| Authors: | ZHANG Xin-Bo ZHAO Min-Shou |
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| Institution: | Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China |
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| Abstract: | The La1-xMgx(NiCoAl)3.5system compounds, La0.9Mg0.1Ni3.1Co0.3Al0.2, La0.7Mg0.3Ni3.1· Co0.3Al0.2, La0.8Mg0.2Ni3.0Co0.4Al0.2and La0.9Mg0.1Ni3.1Co0.2Al0.3have been prepared by arc melting of constituent elements in Ar atmosphere. The electrochemical properties of these alloys have been studied through the charge-discharge recycle testing. The X-ray diffraction(XRD) analysis reveals that the as-prepared alloys have quite different crystal structures from that of AB5-type alloy. It can be found that La1-xMgx(NiCoAl)3.6system alloys are capable of performing a high rate discharge. The as-prepared alloys have much higher middle voltage than those of AB5-type alloy during the discharge period. |
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| Keywords: | Metal hydride electrode Electrochemical properties High rate discharge |
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