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

被引：36

作者：

Sharon, Daniel ^{[1
,2
]}

Sharon, Pessia ^{[1
,2
]}

Hirshberg, Daniel ^{[1
,2
]}

Salama, Michael ^{[1
,2
]}

Afri, Michal ^{[1
,2
]}

Shimon, Linda J. W. ^{[3
]}

Kwak, Won-Jin ^{[4
]}

Sun, Yang-Kook ^{[4
]}

Frimer, Aryeh A. ^{[1
,2
]}

Aurbach, Doron ^{[1
,2
]}

机构：

[1] Bar Ilan Univ, Dept Chem, IL-5290002 Ramat Gan, Israel

[2] Bar Ilan Univ, BINA BIU Inst Nanotechnol & Adv Mat, IL-5290002 Ramat Gan, Israel

[3] Weizmann Inst Sci, Dept Chem Res Support, IL-76100 Rehovot, Israel

[4] Hanyang Univ, Dept Energy Engn, Seoul 04763, South Korea

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2017年 / 139卷 / 34期

基金：

以色列科学基金会;

关键词：

LITHIUM; BATTERY; ELECTROLYTE;

D O I：

10.1021/jacs.7b06414

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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-O-2 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-O-2 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.

引用

页码：11690 / 11693

页数：4

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