金属钒具有吸氢量大、抗粉化性能好等优点,但是有效吸氢量较低,只有一半的氢能够释放出来,没有实用价值.在V-Ti二元合金的基础上形成的三元合金V-Ti-M(M代表Cr,Mn,Fe,Ni等)具有良好的贮氢性能.Ti/Cr比对V-Ti-Cr合金性能影响很大,Ti/Cr比值为0.75时V-Ti-Cr合金具有最大的贮氢量和有效吸氢量,同时热处理可以有效地提高V-Ti-Cr合金的有效吸氢量,并降低V的使用量.添加Mn的三元合金具有BCC和Laves相双相结构.V-Ti-Fe合金的贮氢量很高,并有希望利用便宜的钒铁做钒源.此外,V基固溶体合金还可以用于镍氢电池负极,如V-Ti-Ni合金具有很高的放电容量,目前需要解决其循环稳定性差和成本高的问题.
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