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Experimental Performance Evaluation of a Rechargeable Lithium-Air Battery Operating at Room Temperature

[+] Author Affiliations
Susanta K. Das, K. Joel Berry

Kettering University, Flint, MI

Salma Rahman, Jianfang Chai, Steven E. Keinath, Abhijit Sarkar

Michigan Molecular Institute, Midland, MI

Matthew Quast, Anja Mueller

Central Michigan University, Mt. Pleasant, MI

Paper No. IMECE2014-39004, pp. V06AT07A034; 7 pages
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 6A: Energy
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4951-4
  • Copyright © 2014 by ASME


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.

Copyright © 2014 by ASME



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