2,4-Dimethoxy-2,4-dimethylpentan-3-one: An Aprotic Solvent Designed for Stability in Li-O2 Cells

Daniel Sharon, Pessia Sharon, Daniel Hirshberg, Michael Salama, Michal Afri, Linda J.W. Shimon, Won Jin Kwak, Yang Kook Sun, Aryeh A. Frimer, Doron Aurbach*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


In this study, we present a new aprotic solvent, 2,4-dimethoxy-2,4-dimethylpentan-3-one (DMDMP), which is designed to resist nucleophilic attack and hydrogen abstraction by reduced oxygen species. Li-O2 cells using DMDMP solutions were successfully cycled. By various analytical measurements, we showed that even after prolonged cycling only a negligible amount of DMDMP was degraded. We suggest that the observed capacity fading of the Li-O2 DMDMP-based cells was due to instability of the lithium anode during cycling. The stability toward oxygen species makes DMDMP an excellent solvent candidate for many kinds of electrochemical systems which involve oxygen reduction and assorted evaluation reactions.

Original languageAmerican English
Pages (from-to)11690-11693
Number of pages4
JournalJournal of the American Chemical Society
Issue number34
StatePublished - 30 Aug 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 American Chemical Society.


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