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Issue 42, 2015
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Critical advances for the iron molten air battery: a new lowest temperature, rechargeable, ternary electrolyte domain

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Abstract

A new rechargeable iron molten air battery is demonstrated for large-scale energy storage. The operational temperature range of the battery is lowered by 230 °C using a KCl–LiCl–LiOH eutectic electrolyte with added NaOH. The battery cycled stably at 500 °C for 60 cycles with an average discharge potential of ∼1.04 V and average charging potential of ∼1.21 V. When the active interface area for the oxygen reduction reaction on the air electrode is improved, 85.2% coulombic efficiency is obtained and also 99.1% to a 0.5 V discharge cutoff. The iron molten air battery has advantages of higher capacity, low cost, sustainability, and environmental friendliness compared to existing secondary batteries.

Graphical abstract: Critical advances for the iron molten air battery: a new lowest temperature, rechargeable, ternary electrolyte domain

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Submitted
04 Aug 2015
Accepted
09 Sep 2015
First published
09 Sep 2015

J. Mater. Chem. A, 2015,3, 21039-21043
Article type
Paper
Author version available

Critical advances for the iron molten air battery: a new lowest temperature, rechargeable, ternary electrolyte domain

S. Liu, X. Li, B. Cui, X. Liu, Y. Hao, Q. Guo, P. Xu and S. Licht, J. Mater. Chem. A, 2015, 3, 21039
DOI: 10.1039/C5TA06069A

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