Communication—Molten Amide-Hydroxide-Iodide Electrolyte for a Low-Temperature Sodium-Based Liquid Metal Battery
Name
J. Electrochem. Soc.-2017-Ashour-A535-7.pdf
Description
Published version
Size
289.09 KB
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Checksum (MD5)
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Author(s)
Ashour, Rakan F.
Yin, Huayi
Ouchi, Takanari
Kelley, Douglas H.
Sadoway, Donald Robert
Date Issued
January 2017
Journal
Journal of The Electrochemical Society
Publisher
The Electrochemical Society
Citation
Ashour, Rakan F. et al., "Communication—Molten Amide-Hydroxide-Iodide Electrolyte for a Low-Temperature Sodium-Based Liquid Metal Battery." Journal of The Electrochemical Society 164, 2 (January 2017): A535-A537 ©2017 Authors
Version
Final published version
Abstract
The low cost and high abundance of sodium make it an attractive choice for the negative electrode in a liquid metal battery. However, sodium has not found use in this application owing to the high solubility of the metal in its molten halides which results in poor coulombic efficiency and an unacceptably high rate of self discharge. In this work, we investigated the electrochemical behavior of the ternary eutectic of NaNH[subscript 2], NaOH and NaI (m.p. 127°C) and evaluated its usefulness as an electrolyte for sodium-based liquid metal batteries. Cyclic voltammetry revealed an electrochemical window of 1.3 V at 180°C. The anodic limit is set by the oxidation of amide anions to form hydrazine gas.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1149/2.1451702JES
