The partially reversible formation of Li-metal particles on a solid Li electrolyte: applications toward nanobatteries

Thomas M Arruda, Amit Kumar, Sergei V Kalinin, Stephen Jesse

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The feasibility of large-scale implementation of Li-air batteries (LABs) hinges on understanding the thermodynamic and kinetic factors that control charge-discharge rates, efficiency and life times. Here, the kinetics of bias-induced reactions is explored locally on the surface of Li-ion conductive glass ceramics, a preferred electrolyte for LABs, using direct current-voltage and strain spectroscopies. Above a critical bias, particle growth kinetics were found to be linear in both the bias and time domains. Partial reversibility was observed for Li particles as evidenced by the presence of anodic peaks following the Li(+) reduction, as well an associated reduction in particle height. The degree of reversibility was highest for the smallest particles formed. These observations thus suggest the possibility of producing nanobatteries with an active anode volume of the order of 0.1 al.
Original languageEnglish
Article number325402
Pages (from-to)325402
JournalNanotechnology
Volume23
Issue number32
DOIs
Publication statusPublished - 17 Aug 2012

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

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