氢能作为一种新型的高能量密度的绿色能源,储存和输送技术是其有效利用的关键。本文对气态、液态和固态这三种储氢方式进行了比较,结果表明固态储氢能量密度高且安全性好,优势明显;其中金属氢化物储氢易于携带和储存、可重复吸放氢,可促使氢气有效利用。本文阐述了金属氢化物储氢器的作用原理、特点,对其应用领域进行了说明。 As a new type of green energy with high energy density, hydrogen storage and transportation technology is the key to its efficient use. The results show that the solid-state hydrogen storage has the advantages of high energy density, good safety and obvious advantages. The hydrogen storage of the metal hydride is easy to carry and store, and the hydrogen can be absorbed and discharged repeatedly. Hydrogen can promote the effective use. This article describes the metal hydride hydrogen storage device principle, characteristics, its application areas are described.