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以混合稀土代替纯Ｌａ制备了ＭｍＢ５型贮氢电极，并在一定范围内适当调变稀土各组分含量，从而在保证负极材料性能的前提下，达到降低其制备成本的目的。
MmB5 hydrogen storage electrode was prepared by mixing rare earth instead of pure La, and the contents of rare earth elements were properly adjusted within a certain range so as to reduce the preparation cost under the premise of ensuring the performance of the negative electrode material.