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

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

doi:10.1149/1.3484804

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 proceeding › Conference 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 language	English
Title of host publication	Molten Salts and Ionic Liquids 17
Pages	455-462
Number of pages	8
Edition	7
DOIs	https://doi.org/10.1149/1.3484804
Publication status	Published - 2010 Dec 1
Event	17th International Symposium on Molten Salts and Ionic Liquids - 218th ECS Meeting - Las Vegas, NV, United States Duration: 2010 Oct 10 → 2010 Oct 15

Publication series

Name	ECS Transactions
Number	7
Volume	33
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Conference

Conference	17th International Symposium on Molten Salts and Ionic Liquids - 218th ECS Meeting
Country	United States
City	Las Vegas, NV
Period	10/10/10 → 10/10/15

ASJC Scopus subject areas

Engineering(all)

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10.1149/1.3484804

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Takeda, O, Li, M, Hoshi, M & Sato, Y 2010, Electrowinning of lithium from molten salt containing LiOH for hydrogen storage and transportation. in Molten Salts and Ionic Liquids 17. 7 edn, ECS Transactions, no. 7, vol. 33, pp. 455-462, 17th International Symposium on Molten Salts and Ionic Liquids - 218th ECS Meeting, Las Vegas, NV, United States, 10/10/10. https://doi.org/10.1149/1.3484804

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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.",

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AU - Takeda, O.

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AU - Hoshi, M.

AU - Sato, Y.

PY - 2010/12/1

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N2 - 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.

AB - 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.

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