Electrowinning of lithium from molten salt containing LiOH for hydrogen storage and transportation

O. Takeda, M. Li, M. Hoshi, Y. Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Investigation on electrowinning of lithium from molten salt containing LiOH was conducted in order to develop a system of storage and transportation for hydrogen by using LiH as a storage medium. Electrolysis of LiOH in molten LiOH-42 mol% LiCl was tried, but lithium metal was not obtained. A chemical potential diagram for Li-O-H system was then constructed from thermochemical data for the analysis of side reactions, and a possibility of reaction between lithium metal and LiOH in the bath was revealed. Electrolysis of LiOH in molten LiCl-42 mol% KCl was tried by charging LiOH in an anode compartment comprised of a porous magnesia diaphragm in order to prevent the side reaction of lithium metal with LiOH, and lithium metal was successfully obtained.

Original languageEnglish
Title of host publicationMolten Salts and Ionic Liquids 17
Pages455-462
Number of pages8
Edition7
DOIs
Publication statusPublished - 2010 Dec 1
Event17th International Symposium on Molten Salts and Ionic Liquids - 218th ECS Meeting - Las Vegas, NV, United States
Duration: 2010 Oct 102010 Oct 15

Publication series

NameECS Transactions
Number7
Volume33
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference17th International Symposium on Molten Salts and Ionic Liquids - 218th ECS Meeting
Country/TerritoryUnited States
CityLas Vegas, NV
Period10/10/1010/10/15

ASJC Scopus subject areas

  • Engineering(all)

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