Energy Storage Science and Technology ›› 2018, Vol. 7 ›› Issue (4): 586-594.doi: 10.12028/j.issn.2095-4239.2018.0062

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Hydrogen storage technology: Current status and prospects

LI Luling1,2, FAN Shuanshi2,3, CHEN Qiuxiong1, YANG Guang1, WEN Yonggang1   

  1. 1. Shenzhen Gas Corporation Ltd., Shenzhen 518049, Guangdong, China;
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, Sichuan, China;
    3. Key Laboratory of Enhanced Heat Transfer and Energy Conversation, Ministry of Education, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2018-04-13 Revised:2018-04-23 Online:2018-07-01 Published:2018-04-23

Abstract: Available hydrogen storage technologies are reviewed in this article, mainly including physical and chemical hydrogen storage. The physical hydrogen storage technology incudes high-pressure gaseous hydrogen storage and low-temperature liquified hydrogen storage. These methods have advantages of being low-cost, easy to discharge and with a high hydrogen, but safety can be an issue. The chemical hydrogen storage technology is often based on chemical interactions of hydrogen with a substance. such as organic liquid, ammonia, hydride, inorganic substance and methanol etc. These chemical compounds are stable so have an advantage of high storage safety. However, this type of methods often come across issues of slow discharge process and low hydrogen purity due to by-products. To address the issues associated with the main physical and chemical storage methods, alternative hydrogen storage technologies have been proposed, including absorption and hydrate based gas separation. The most widely used absorbents are metal, carbonaceous material and metal-organic frameworks (MOFs) but high cost and low energy density are the main issues. Hydrate based storage technology is favorable in terms of cost and energy consumption but the energy density is low.

Key words: hydrogen energy, hydrogen storage technology, hydrogen storage capacity, physical hydrogen storage, chemical hydrogen storage, other hydrogen storage

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