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对贮氢合金的表面活化处理进行了研究。ＸＰＳ结果表明，未处理的贮氢合金由于成分偏析使表面富集稀土元素，降低了表面的电催化能力。经过表面活化处理，表面层中的稀土含量大大降低，而镍元素得到富集；另一方面，表面形成许多凹陷与裂纹提高了比表面积。表面处理后的富镍层被认为是以多孔性Ｒａｎｅｙ镍或镍金属簇形式存在的。贮氢合金氢化物电极性能表明处理后电极活化周期大大缩短，而且放电电势与放电容量提高。
The surface activation of hydrogen storage alloy has been studied. XPS results show that the untreated hydrogen storage alloy due to composition segregation surface enrichment of rare earth elements, reducing the surface electrocatalytic capacity. After the surface activation treatment, the rare earth content in the surface layer is greatly reduced, while the nickel element is enriched; on the other hand, many depressions and cracks are formed on the surface to increase the specific surface area. The surface-treated nickel-rich layer is believed to exist as a porous Raney nickel or nickel cluster. Hydrogen storage alloy hydride electrode performance shows that the electrode activation cycle is greatly reduced after treatment, and the discharge potential and discharge capacity increased.