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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