Journal
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
Volume 39, Issue 3, Pages 303-316Publisher
WILEY-HINDAWI
DOI: 10.1002/er.3230
Keywords
lithium-air battery; cell reaction; oxidation of lithium anode; improvements in air electrode; oxygen selective membrane; solid-state electrolyte; energy of Li-air battery
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Funding
- SEI Pakistan
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Metal-air batteries are being envisioned as a clean and high energy fuel for the modern automotive industry. The lithium-air battery has been found most promising among the various practically applicable metal-air systems, that is, Al-air, Li-air, Mg-air, Fe-air, and Zn-air. The theoretical specific energy of the Li-air battery is similar to 12kWh/kg, excluding the oxygen mass. This is comparable with the energy density of gasoline, which is similar to 13kWh/kg. It has been hypothesized that the Li-air battery could supply an energy similar to 1.7kWh/kg after losses from over potentials to run a vehicle similar to 300miles on a single charge. During the first decade of this century, a fair amount of research has been conducted on Li-air battery system. Yet, Li-air batteries could not make an industrial breakthrough, and are still in the laboratory phase since their birth. In this article, we technically evaluated the recent developments, and the inferences have been analyzed from the practical/commercial point of view. The study concludes that low discharge rate, lower number of cycles, oxidation of lithium anode, discharge products at the cathode, and side reactions inside the battery are the key limiting factors in the slow progress of Li-air batteries on an industrial scale. The ongoing researches to overcome these hurdles have also been discussed. This analysis will help the reader to understand the current standing of the lithium-air battery technology. Copyright (c) 2014 John Wiley & Sons, Ltd.
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