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

doi:10.1021/jacs.7b06414

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

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

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 language	English
Pages (from-to)	11690-11693
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	139
Issue number	34
DOIs	https://doi.org/10.1021/jacs.7b06414
State	Published - 30 Aug 2017

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© 2017 American Chemical Society.

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

abstract = "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.",

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doi = "10.1021/jacs.7b06414",

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AU - Sharon, Daniel

AU - Sharon, Pessia

AU - Hirshberg, Daniel

AU - Salama, Michael

AU - Afri, Michal

AU - Shimon, Linda J.W.

AU - Kwak, Won Jin

AU - Sun, Yang Kook

AU - Frimer, Aryeh A.

AU - Aurbach, Doron

PY - 2017/8/30

Y1 - 2017/8/30

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AB - 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.

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

Abstract

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