稀土系储氢合金性能影响因素的研究现状

Recent Research on Influence Factors of Capability of Rare -Earth-Based Hydrogen Storage Alloys

稀土系AB5型储氢合金具有原料价格低、低温性能好以及高倍率性能优良等优点,目前被广泛用于Ni-MH电池负极材料。本文对稀土系储氢合金性能的影响因素:组成、制备方法、温度以及其他等因素的研究现状进行了综述。指出稀土系储氢合金目前存在的最大问题是放电性能低。

Rare-earth-based ABs-type hydrogen storage alloys are widely used as cathode materials of MH-Ni batteries for their advantages, such as, lower price of raw material, good properties in low temperature and excellent high-rate discharge capacity. Recent research development on influence factors of discharge capacity of rare-earth-based hydrogen storage alloys, including composition, preparing methods, work temperature and other methods, was reviewed. Currently, the main problem existing in low discharge capability of rare-earth -based hydrogen storage alloy is mentioned.