RELEASED ON 15/02/13 (DD/MM/YY)

By a News Reporter-Staff News Editor at Chemicals & Chemistry -- New research on Electrolytes is the subject of a report. According to news reporting originating in Ludwigshafen, Germany, by VerticalNews journalists, research stated, "Polyether solvents are considered interesting and important candidates for Li-O-2 battery systems. Discharge of Li-O-2 battery systems forms Li oxides."

The news reporters obtained a quote from the research from BASF, "Their mechanism of formation is complex. The stability of most relevant polar aprotic solvents toward these Li oxides is questionable. Specially high surface area carbon electrodes were developed for the present work In this study, several spectroscopic tools and in situ measurements using electrochemical quartz crystal microbalance (EQCM) were employed to explore the discharge-charge processes and related side reactions in Li-O-2 battery systems containing electrolyte solutions based on triglyme/lithium bis-(trifluoromethanesulfonyl)imide (LiTFSI) electrolyte solutions. The systematic mechanism of lithium oxides formation was monitored."

According to the news reporters, the research concluded: "A combination of Fourier transform infrared (FTIR), NMR, and matrix-assisted laser desorption/ionization (MALDI) measurements in conjunction with electrochemical studies demonstrated the intrinsic instability and incompatibility of polyether solvents for Li-air batteries."

For more information on this research see: On the Challenge of Electrolyte Solutions for Li-Air Batteries: Monitoring Oxygen Reduction and Related Reactions in Polyether Solutions by Spectroscopy and EQCM. Journal of Physical Chemistry Letters, 2013;4(1):127-131. Journal of Physical Chemistry Letters can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Journal of Physical Chemistry Letters - www.pubs.acs.org/journal/jpclcd)

Our news correspondents report that additional information may be obtained by contacting D. Sharon, BASF SE, D-67056 Ludwigshafen, Germany.

SOURCE Chemicals & Chemistry