| 高功率型和低温型镍氢电池用掺硼贮氢合金的研究 |
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| 引用本文： | 叶辉,李志林,吴铸,张宏. 高功率型和低温型镍氢电池用掺硼贮氢合金的研究[J]. 功能材料与器件学报, 2002, 8(2): 139-143 |
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| 作者姓名： | 叶辉 李志林 吴铸 张宏 |
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| 作者单位： | 中国科学院上海微系统与信息技术研究所能源室,上海200050 |
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| 摘 要： | Ni/MH电池负极的高倍率性能和低温放电性能的提高应当受到重视，采用廉价的硼镍合金（B-Ni)作为掺硼添加剂，有效地改善常用MlNi3.55Co0.75Mn0.4Al0.3贮氢合金的高倍率性能和低温放电性能，实验结果表明，掺硼合金由于形成含CeCo4B相的复相结构可显著提高合金的电化学动力学性能，掺硼的MlNi3.55Co0.75Mn0.4Al0.3B0.3合金能够满足高功率型Ni/NH电池的高倍率性能和低温型Ni/MH电池在低温-35℃下的小倍率放电（≤120mA/g)的要求。
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| 关 键 词： | 高功率型 低温型 镍氢电池 掺硼 贮氢合金 电化学性能 |
| 文章编号： | 1007-4252(2002)02-0139-05 |
| 修稿时间： | 2001-06-21 |
Study of hydrogen storage alloy doped with boron for high- power type and low- temperature type Ni/MH battery |
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| YE Hui,LI Zhi -lin,WU Zhu,ZHANG Hong. Study of hydrogen storage alloy doped with boron for high- power type and low- temperature type Ni/MH battery[J]. Journal of Functional Materials and Devices, 2002, 8(2): 139-143 |
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| Authors: | YE Hui LI Zhi -lin WU Zhu ZHANG Hong |
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| Abstract: | It is important to improve the high -rate discharge ability and low -temp erature discharge performance of negative electrode o f Ni /MH battery.The two important performances above of commercial MlNi 3.55 Co 0.75 Mn 0.4 Al 0.3 hydrogen storage alloy were improve d by using B -Ni alloy as B additive .The results show that the a lloy doped with B exhibits has superior electrochemical kinetic properties,which can be ascribed to the formation of CeCo 4 B type secondary phase.MlNi 3.55 Co 0.75 Mn 0.4 -Al 0.3 B 0.3 hydrogen storage alloy can meet the r equirements of high -power type and l ow -temperature type Ni /MH battery. |
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| Keywords: | Ni /MH battery hydrogen storage alloys electrochemical performance high -rate discharge ability low temperature |
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