Electrolysis of LiOH for hydrogen supply

Thomas Laude, Takehisa Kobayashi, Yuzuru Sato

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The hydrolysis of lithium hydride (LiH) is a promising technique for the supply of hydrogen. LiH can be stored in sealed tanks or cartridges of ∼6% mass effective hydrogen capacity. However, the lack of an efficient recycling method for the byproduct lithium hydroxide (LiOH) has been a limitation to its use. Here, we propose and demonstrate a recycling process based on the hot melt electrolysis of a LiOH-LiCl eutectic mixture at 380 °C. The electrolysis activation potential was measured at 3.08 V. Lithium production was observed around the cathode using differential scanning calorimetry (DSC) and cyclic voltametry. Current efficiency was estimated 37.9%, and the absence of LiCl decomposition was confirmed.

Original languageEnglish
Pages (from-to)585-588
Number of pages4
JournalInternational Journal of Hydrogen Energy
Volume35
Issue number2
DOIs
Publication statusPublished - 2010 Jan

Keywords

  • Chemical storage
  • Electrochemistry
  • Hydrogen
  • Lithium
  • Molten salt

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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