The Role of Charge Reactions in Cyclability of Lithium-Oxygen Batteries

被引：38

作者：

Guo, Xiangxin ^{[1
]}

Zhao, Ning ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

来源：

ADVANCED ENERGY MATERIALS | 2013年 / 3卷 / 11期

关键词：

IONIC-LIQUID; LI-O-2; ELECTROLYTE; CATHODE; DECOMPOSITION;

D O I：

10.1002/aenm.201300432

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The significant influence of product removal upon charge on cyclability of Li-O2 batteries with carbon electrodes is demonstrated. Optimal charge cut-off voltages lead to 32 cycles for the tetraethylene glycol dimethyl ether (TEGDME)-based batteries, and 40 cycles for the N-methyl-N- propylpiperidinium bis(trifluoromethansulfony) imide (PP13TFSI)-based ones without degradation of the retained discharge capacity. Further extension of cycle operation would need introduction of catalysts that can avoid by-product accumulation. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

收藏

页码：1413 / 1416

页数：4

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