Role of solvents on the oxygen reduction and evolution of rechargeable Li-O2battery

被引：35
作者：
Christy, Maria [1 ]
Arul, Anupriya [2 ]
Zahoor, Awan [4 ]
Moon, Kwang Uk [3 ]
Oh, Mi Young [1 ]
Stephan, A. Manuel [5 ]
Nahm, Kee Suk [1 ,2 ,3 ]
机构：
[1] Chonbuk Natl Univ, R&D Educ Ctr Fuel Cell Mat Syst, Jeonju 561756, South Korea
[2] Chonbuk Natl Univ, Dept Energy Storage Convers Engn, Jeonju 561756, South Korea
[3] Chonbuk Natl Univ, Sch Chem Engn, Jeonju 561756, South Korea
[4] NED Univ Engn & Technol, Dept Chem Engn, Karachi 75270, Pakistan
[5] Cent Elect Res Inst, Elect Power Syst Div, Karaikkudi 630006, Tamil Nadu, India
来源：
JOURNAL OF POWER SOURCES | 2017年 / 342卷
关键词：
Lithium-oxygen battery; Electrolytes; Solvents; Electrocatalytic activity; Overpotential; LI-AIR BATTERIES; DIMETHYL-SULFOXIDE; LI-O-2; BATTERIES; LITHIUM; ELECTROLYTE; METAL; REVERSIBILITY; PERFORMANCE; LIMITATIONS; STABILITY;
D O I：
10.1016/j.jpowsour.2016.12.119
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 choice of electrolyte solvent is expected to play a key role in influencing the lithium-oxygen battery performance. The electrochemical performances of three electrolytes composed of lithium bis (trifluoromethane sulfonyl) imide (LiTFSI) salt and different solvents namely, ethylene carbonate/propylene carbonate (EC/PC), tetra ethylene glycol dimethyl ether (TEGDME) and dimethyl sulfoxide (DMSO) are investigated by assembling lithium oxygen cells. The electrolyte composition significantly varied the specific capacity of the battery. The choice of electrolyte also influences the overpotential, cycle life, and rechargeability of the battery. Electrochemical impedance spectra, cyclic voltammetry, and chronoamperometry were utilized to determine the reversible reactions associated with the air cathode. (C) 2017 Elsevier B.V. All rights reserved.
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页码：825 / 835
页数：11
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