Computational modeling of transport limitations in li-air batteries

E. M. Ryan, K. F. Ferris, A. M. Tartakovsky, M. A. Khaleel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

In this paper we investigate transport limitations in the electrodes of lithium-air batteries through computational modeling. We use meso-scale models to consider the effects of dendrites on the current and potential at the anode surface, and to investigate the effects of reaction and transport parameters on the formation of precipitates in the cathode. The formation of dendrites on the anode surface during cycling reduces the transport of ions and can lead to short circuits in the cell. Growth of precipitates in the cathode reduces the specific capacity of the cell due to surface passivation and pore clogging. Both of these degradation mechanisms depend on meso-scale phenomena, such as the porescale reactive transport in the cathode. To understand the effects of the meso-scale transport and precipitation on the performance and lifetime of Li-air batteries, meso-scale modeling is needed that is able to resolve the electrodes and their microstructures.

Original languageEnglish
Title of host publicationECS Transactions
PublisherElectrochemical Society Inc.
Pages123-136
Number of pages14
Volume45
Edition29
DOIs
Publication statusPublished - 2013
Externally publishedYes
EventSymposium on Batteries and Energy Technology Joint General Session - 221st ECS Meeting - Seattle, WA, United States
Duration: 6 May 201210 May 2012

Other

OtherSymposium on Batteries and Energy Technology Joint General Session - 221st ECS Meeting
CountryUnited States
CitySeattle, WA
Period6/5/1210/5/12

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ryan, E. M., Ferris, K. F., Tartakovsky, A. M., & Khaleel, M. A. (2013). Computational modeling of transport limitations in li-air batteries. In ECS Transactions (29 ed., Vol. 45, pp. 123-136). Electrochemical Society Inc.. https://doi.org/10.1149/04529.0123ecst