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

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 (US)
Title of host publicationBatteries and Energy Technology (General) - 221st ECS Meeting
PublisherElectrochemical Society, Inc.
Pages123-136
Number of pages14
Edition29
ISBN (Electronic)9781623320522
ISBN (Print)9781623320522
DOIs
StatePublished - 2013
Externally publishedYes
EventSymposium on Batteries and Energy Technology Joint General Session - 221st ECS Meeting - Seattle, WA, United States
Duration: May 6 2012May 10 2012

Publication series

NameECS Transactions
Number29
Volume45
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceSymposium on Batteries and Energy Technology Joint General Session - 221st ECS Meeting
Country/TerritoryUnited States
CitySeattle, WA
Period5/6/125/10/12

ASJC Scopus subject areas

  • General Engineering

Fingerprint

Dive into the research topics of 'Computational modeling of transport limitations in li-air batteries'. Together they form a unique fingerprint.

Cite this