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Suitability of Blended Ionic Liquid‐Dimethylsulfoxide Electrolyte for Lithium‐Oxygen Battery
Author(s) -
Knipping Etienne,
Aucher Christophe,
Guirado Gonzalo,
Aubouy Laurent
Publication year - 2019
Publication title -
batteries and supercaps
Language(s) - English
Resource type - Journals
ISSN - 2566-6223
DOI - 10.1002/batt.201800078
Subject(s) - overpotential , electrolyte , ionic liquid , lithium (medication) , thermal stability , battery (electricity) , inorganic chemistry , lithium battery , oxygen , chemistry , imide , materials science , chemical engineering , ionic bonding , ion , polymer chemistry , organic chemistry , electrochemistry , electrode , catalysis , medicine , power (physics) , physics , quantum mechanics , engineering , endocrinology
Electrolytes composed of dimethylsulfoxide (DMSO), 1‐ethyl‐3‐methylimidazolium bis(trifluoromethylsulfonyl)imide (EMI TFSI) and LiClO 4 are characterized for application in lithium‐oxygen batteries. The increase of EMI TFSI content in the electrolyte enables to improve its thermal stability and to decrease the overpotential of the cell. The optimum addition of EMI TFSI enables to reduce the overpotential from 1.43 V to 1.06 V, with a cyclability of 69 cycles with 600 mAh g −1 of limited capacity.