The effects of electrolyte, catalyst, and the process of preparation of the air-cathode on the performance of Li-air batteries were investigated. An ether based electrolyte was the best choice for Ketjen Black carbon based air cathodes and delivered high specific capacity (1050 mAh/gC) under dry air with cobalt oxide as catalyst. The introduction of an ultrasonication step in the air-cathode fabrication process improved the air-cathode microstructure. BET analyses revealed that the cathode has a higher surface area and mesopore volume when ultrasonication was used compared to those for the cathode fabricated without the ultrasonication step. With the optimized electrolyte and air-cathode, a high capacity of 2620 mAh/gC was obtained for Li-air batteries tested in dry air with a 0.1 mA/cm2 current density.
Experimental Performance Evaluation of a Rechargeable Lithium-Air Battery Operating at Room Temperature
Das, SK, Rahman, S, Chai, J, Quast, M, Keinath, SE, Berry, KJ, Mueller, A, & Sarkar, A. "Experimental Performance Evaluation of a Rechargeable Lithium-Air Battery Operating at Room Temperature." Proceedings of the ASME 2014 International Mechanical Engineering Congress and Exposition. Volume 6A: Energy. Montreal, Quebec, Canada. November 14–20, 2014. V06AT07A034. ASME. https://doi.org/10.1115/IMECE2014-39004
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