The current energy transition imposes a rapid implementation of energy storage systems with high energy density and eminent regeneration and cycling efficiency. Metal hydrides are potential candidates for generalized energy storage, when coupled with fuel cell units and/or batteries. An overview of ongoing research is reported and discussed in this review work on the light of application as hydrogen and heat storage matrices, as well as thin films for hydrogen optical sensors. These include a selection of single-metal hydrides, Ti–V(Fe) based intermetallics, multi-principal element alloys (high-entropy alloys), and a series of novel synthetically accessible metal borohydrides. Metal hydride materials can be as well of important usefulness for MH-based electrodes with high capacity (e.g. MgH₂ ~ 2000 mA h g⁻¹) and solid-state electrolytes displaying high ionic conductivity suitable, respectively, for Li-ion and Li/Mg battery technologies. To boost further research and development directions some characterization techniques dedicated to the study of M-H interactions, their equilibrium reactions, and additional quantification of hydrogen concentration in thin film and bulk hydrides are briefly discussed.

当前的能量过渡要求以高能量密度以及显着的再生和循环效率快速实施能量存储系统。当与燃料电池单元和/或电池耦合时，金属氢化物是通用能量存储的潜在候选者。根据正在作为氢和储热矩阵以及氢光学传感器薄膜的应用，本综述工作中对正在进行的研究进行了报道和讨论。这些包括精选的单金属氢化物，基于Ti-V（Fe）的金属间化合物，多原理元素合金（高熵合金）以及一系列新型的可合成合成的金属硼氢化物。金属氢化物材料可以是，以及重要的有用性高容量基于MH-电极（例如的MgH ₂〜2000毫安汞柱^-1）和高离子电导率的固态电解质分别适用于锂离子和Li / Mg电池技术。为了促进进一步的研究和发展方向，简要讨论了一些专门用于MH相互作用，其平衡反应以及薄膜和本体氢化物中氢浓度的定量化研究的表征技术。