@article{7301,
  abstract     = {Several problems arise at the O2 (positive) electrode in the Li-air battery, including solvent/electrode decomposition and electrode passivation by insulating Li2O2. Progress partially depends on exploring the basic electrochemistry of O2 reduction. Here we describe the effect of complexing-cations on the electrochemical reduction of O2 in DMSO in the presence and absence of a Li salt. The solubility of alkaline peroxides in DMSO is enhanced by the complexing-cations, consistent with their strong interaction with reduced O2. The complexing-cations also increase the rate of the 1-electron O2 reduction to O2•– by up to six-fold (k° = 2.4 ×10–3 to 1.5 × 10–2 cm s–1) whether or not Li+ ions are present. In the absence of Li+, the complexing-cations also promote the reduction of O2•– to O22–. In the presence of Li+ and complexing-cations, and despite the interaction of the reduced O2 with the latter, SERS confirms that the product is still Li2O2.},
  author       = {Li, Chunmei and Fontaine, Olivier and Freunberger, Stefan Alexander and Johnson, Lee and Grugeon, Sylvie and Laruelle, Stéphane and Bruce, Peter G. and Armand, Michel},
  issn         = {1932-7447},
  journal      = {The Journal of Physical Chemistry C},
  number       = {7},
  pages        = {3393--3401},
  publisher    = {ACS},
  title        = {{Aprotic Li–O2 battery: Influence of complexing agents on oxygen reduction in an aprotic solvent}},
  doi          = {10.1021/jp4093805},
  volume       = {118},
  year         = {2014},
}