Changes in the resistance of electrolyte solutions during contact with lithium electrodes at open circuit potential that reflect the Li surface chemistry

Doron Aurbach, Alexander Schechter

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Li electrodes were freshly prepared in a variety of alkyl carbonate solutions, including DMC, EC-DMC and EC-DEC mixtures, containing LiAsF6, LiPF6 and LiBF4 as the salts, and H2O, HF and tributylamine as the contaminants/additives. The solutions' resistance, measured by impedance spectroscopy, changes systematically during contact with the Li electrodes (at open circuit potential), as a function of the solution composition and the salt, additives and solvent ratio. These changes in the solutions' resistance are discussed in light of the complicated surface chemistry of the Li electrodes in the solutions, which slightly affect the content of the conducting species in solutions.

Original languageEnglish
Pages (from-to)2395-2400
Number of pages6
JournalElectrochimica Acta
Volume46
Issue number15
DOIs
StatePublished - 30 Apr 2001
Externally publishedYes

Keywords

  • Electrolyte solutions
  • Impedance spectroscopy
  • Lithium electrodes
  • Open circuit potential
  • Resistance

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