Experimental performance evaluation of a rechargeable lithium-air battery operating at room temperature

Susanta K. Das, Salma Rahman, Jianfang Chai, Matthew Quast, Steven E. Keinath, K. Joel Berry, Anja Mueller, Abhijit Sarkar

Research output: Contribution to conferencePaperpeer-review

Abstract

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 Liair batteries tested in dry air with a 0.1 mA/cm2 current density.

Original languageEnglish
DOIs
StatePublished - 2014
EventASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014 - Montreal, Canada
Duration: Nov 14 2014Nov 20 2014

Conference

ConferenceASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014
Country/TerritoryCanada
CityMontreal
Period11/14/1411/20/14

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