High-Rate Oxygen Reduction in Mixed Nonaqueous Electrolyte Containing Acetonitrile

被引：11

作者：

Zheng, Dong ^{[1
]}

Yang, Xiao-Qing ^{[2
]}

Qu, Deyang ^{[1
]}

机构：

[1] Univ Massachusetts, Dept Chem, Boston, MA 02125 USA

[2] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2011年 / 6卷 / 12期

关键词：

electrolytes; energy storage; lithium; oxygen; reduction; ELECTROCHEMISTRY;

D O I：

10.1002/asia.201100422

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A mixed nonaqueous electrolyte that contains acetonitrile and propylene carbonate (PC) was found to be suitable for a LiO2 battery with a metallic Li anode. Both the concentration and diffusion coefficient for the dissolved O2 are significantly higher in the mixed electrolyte than those in the pure PC electrolyte. A powder microelectrode was used to investigate the O2 solubility and diffusion coefficient. A 10 mAcm-2 discharge rate on a gas-diffusion electrode is demonstrated by using the mixed electrolyte in a LiO2 cell.

引用

页码：3306 / 3311

页数：6

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