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贮氢合金通常多由能与氢起反应生成氢化物的单纯金属与不能生成氢化物的金属组合成的金属间化合物。贮氢合金的吸氢量一般是用所吸收的氢量与所生成的氢化物之质量比来表示 ,传统的稀土系贮氢合金的吸氢量为 1 4% (质量 )左右。典型ＬａＮｉ5稀土系贮氢合金已作为镍氢蓄电池的?
Hydrogen storage alloys are mostly composed of intermetallic compounds composed of a simple metal that can react with hydrogen to form hydride and a metal that can not generate hydride. The amount of hydrogen absorbed by the hydrogen storage alloy is generally expressed as the mass ratio of the absorbed hydrogen to the produced hydride. The hydrogen absorption of the conventional rare earth-based hydrogen storage alloy is about 14% by mass. Typical LaNi5 rare earth hydrogen storage alloy has been used as a nickel-metal hydride battery?