Stable crack growth in nanostructured Li-batteries

K. E. Aifantis, J. P. Dempsey

Research output: Contribution to journalArticlepeer-review

81 Scopus citations

Abstract

The formation of damage, which results from the large volume expansion of the active sites during electrochemical cycling, in rechargeable Li-batteries, is modelled from a fracture mechanics viewpoint to facilitate the selection of the most effective electrode materials and configurations. The present study is a first step towards examining stable cracking in such high-energy storage devices, by considering three different configurations at the nanoscale, which are currently at an experimental stage. As a result, stability diagrams concerning crack growth are constructed and compared for the following cases: (a) the electrodes are thin films, (b) the Li-insertion sites in the anode are nanofibre-like inclusions, (c) the active sites in both electrodes are spherical.

Original languageEnglish (US)
Pages (from-to)203-211
Number of pages9
JournalJournal of Power Sources
Volume143
Issue number1-2
DOIs
StatePublished - Apr 27 2005

Keywords

  • Cracking
  • Fracture mechanics
  • Li-batteries

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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