Controlling oxidation potentials in redox shuttle candidates for lithium-ion batteries

Selin Ergun, Corrine F. Elliott, Aman Preet Kaur, Sean R. Parkin, Susan A. Odom

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Overcharge, a condition in which cell voltage rises to undesirably high potentials, can be prevented in lithium-ion batteries by incorporating redox shuttles into the battery electrolyte. Although extensive overcharge protection has been demonstrated in batteries with LiFePO4 cathodes, the redox shuttles that work in these batteries are incompatible with higher voltage cathodes. Designing stable additives with higher oxidation potentials is necessary to protect high voltage batteries from overcharge. Toward that goal, we synthesized diarylamines with varied structures, including fused heteroaromatic ring systems and electron-withdrawing substituents. We found that trends in oxidation potentials correlated with those in calculated adiabatic ionization potentials. Some diarylamine derivatives protected batteries from overcharge with varying degrees of success.

Original languageEnglish
Pages (from-to)14824-14832
Number of pages9
JournalJournal of Physical Chemistry C
Issue number27
StatePublished - Jul 10 2014

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy (all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films


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