A1 Journal article (refereed), original research

Evaluation of Li electrodeposition into Al from LiCl-KCl electrolyte


Publication Details
Authors: Bilesan Mohammad Reza, Soltanieh Mansour, Bafghi Mohammad Sheikh-Shab, Repo Eveliina
Publisher: Springer Verlag (Germany)
Publication year: 2020
Language: English
Related Journal or Series Information: Surface Engineering and Applied Electrochemistry
Volume number: 56
Issue number: 5
Start page: 571
End page: 579
Number of pages: 9
ISSN: 1068-3755
eISSN: 1934-8002
JUFO-Level of this publication: 1
Open Access: Not an Open Access publication

Abstract

This study investigated the effects of temperature and current density
on the production of an Al-Li master alloy by electrolysis method.
Current efficiency and specific energy consumption were calculated
according to Faraday's law to determine optimal conditions for
production of the Al-Li master alloy. Solid aluminum and graphite were
used as the cathode and anode, respectively. The LiCl-KCl was used as
the electrolyte containing lithium. The different Current densities were
applied, and the samples were kept at a temperature during deposition
of the lithium. Scanning electron microscopy (SEM), optical microscopy
(OM) and X-ray diffraction analysis (XRD) were used to investigate the
microstructure and phase compositions. Atomic absorption spectroscopy
(AAS) was used to measure existing lithium. The results showed that
electrolysis at 620 °C and current density of 0.9 A/cm2 at 4V for 3
hours leads to formation of an Al-17.43 wt.% Li master alloy. Current
efficiency and specific energy consumption for the optimum conditions
were found to be 96% and 16.08 kWh/kg, respectively.


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Last updated on 2020-04-11 at 07:35