Hydrogen H2 is emerging as an energy solution to issues such as dwindling fossil fuels and greenhouse gases. However, its storage techniques remain a challenge due to its tendency to explode and low density. Currently, several hydrogen storage techniques are being researched with their advantages and disadvantages. This review analyzes and evaluates primary storage techniques considering performance metrics related to its integration with energy systems. Compressed gas storage offers quick hydrogen release and transportation. However, it is constrained by its low volumetric energy density, leakage, and high costs. Cryogenic liquid storage, rather, enhances compactness and convenient distance travel. This technique is marred by evaporation losses and high energy costs. Solid-state storage provides increased safety, long-term stability and high volumetric energy density, but is being hindered by high cost, weight constraints, low reversibility, and ongoing developments. Storage in salt caverns underground is a feasible option for long-term and large-scale hydrogen storage. But it suffers from leak hazards, environmental risks, high infrastructure costs, and extensive geological surveying requirements. Hydrogen storage is at present the largest obstacle in the mass implementation of hydrogen technology. Although no single approach will meet all technical and economic requirements, each method has advantages suited to certain environments. Compressed and cryogenic storage are better associated with transportation and distributed application, while solid-state and underground storage enable renewable energy. Hybrid storage solutions may be essential in future energy systems for applications that are further enhanced by techno-economic modeling and customized to meet the demands of certain applications.

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Hydrogen Storage Technologies: A Comparative Review

  • Hanae Talouizet,
  • Amine Soufi,
  • Nouha El Malki,
  • Latifa Ouadif,
  • Khadija Baba

摘要

Hydrogen H2 is emerging as an energy solution to issues such as dwindling fossil fuels and greenhouse gases. However, its storage techniques remain a challenge due to its tendency to explode and low density. Currently, several hydrogen storage techniques are being researched with their advantages and disadvantages. This review analyzes and evaluates primary storage techniques considering performance metrics related to its integration with energy systems. Compressed gas storage offers quick hydrogen release and transportation. However, it is constrained by its low volumetric energy density, leakage, and high costs. Cryogenic liquid storage, rather, enhances compactness and convenient distance travel. This technique is marred by evaporation losses and high energy costs. Solid-state storage provides increased safety, long-term stability and high volumetric energy density, but is being hindered by high cost, weight constraints, low reversibility, and ongoing developments. Storage in salt caverns underground is a feasible option for long-term and large-scale hydrogen storage. But it suffers from leak hazards, environmental risks, high infrastructure costs, and extensive geological surveying requirements. Hydrogen storage is at present the largest obstacle in the mass implementation of hydrogen technology. Although no single approach will meet all technical and economic requirements, each method has advantages suited to certain environments. Compressed and cryogenic storage are better associated with transportation and distributed application, while solid-state and underground storage enable renewable energy. Hybrid storage solutions may be essential in future energy systems for applications that are further enhanced by techno-economic modeling and customized to meet the demands of certain applications.