贮氢合金的市场状况贮氢合金在冷却和加压时吸收氢气并放热，反之在加热和减低压力时放出氢气并吸热。镍一氢蓄电池就是利用了这一独特性质。镍一氢蓄电池正极用镍板，而负极用混合稀土系贮氢合金，当两电极施加电压时，通过吸放氢过程即进行充放电。目前，这种新型镍一氢... Market conditions for hydrogen storage alloys Hydrogen storage alloys absorb hydrogen and radiate heat when cooled and pressurized, whereas hydrogen evolves and absorbs heat when heated and pressure is reduced. Nickel-hydrogen batteries take advantage of this unique property. The nickel-hydrogen battery is a nickel plate for the positive electrode, and the negative electrode is a mixed rare earth-based hydrogen-storage alloy. When voltage is applied to both electrodes, the battery is charged and discharged by hydrogen absorption and desorption. At present, this new nickel-hydrogen ...