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/MH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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