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Suppression of Byproduct Accumulation in Rechargeable Aluminum–Air Batteries using non-Oxide Ceramic Materials as Air Cathode Materials

Abstract

To develop a high-capacity rechargeable aluminum–air battery with resistance toward the degradation induced by long-term charge–discharge electrochemical reactions, non-oxide ceramic materials, e.g., TiN, TiC, and TiB2, were used as air cathode materials with the ionic liquid 1-ethyl 3-methylimidazolium chloride as the electrolyte. These non-oxide materials served as air cathode materials, and the addition of conductive carbon to these air cathode materials enhanced electrochemical reactions. The accumulation of byproducts, e.g., Al(OH)3 and Al2O3, has been a major obstacle in obtaining a stable rechargeable aluminum–air battery for practical applications, and the use of TiC and TiN as air cathodes led to the suppression of these accumulated byproducts. When TiC was used as air cathode material, battery exhibited long term stability. To the best of our knowledge, this is the first report of the suppression of the accumulation of such byproducts on both anode and the air cathode.

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Publication details

The article was received on 11 Feb 2017, accepted on 09 May 2017 and first published on 12 May 2017


Article type: Paper
DOI: 10.1039/C7SE00087A
Citation: Sustainable Energy Fuels, 2017, Accepted Manuscript
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    Suppression of Byproduct Accumulation in Rechargeable Aluminum–Air Batteries using non-Oxide Ceramic Materials as Air Cathode Materials

    R. Mori, Sustainable Energy Fuels, 2017, Accepted Manuscript , DOI: 10.1039/C7SE00087A

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