Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 36, Pages 19923-19929Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b04005
Keywords
superoxide; solvation; lithium ion; ESI-MS; oxygen reduction
Funding
- U.S. Department of Energy, Office of Vehicle Technologies [DE-SC0012704]
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The solvation of Li+ with 11 nonaqueous solvents commonly used as electrolytes for lithium batteries was studied. The solvation preferences of different solvents were compared by means of electrospray mass spectrometry and collision-induced dissociation. The relative strength of the solvent for the solvation of Li + was determined. The Lewis acidity of the solvated Li+ cations was determined by the preferential solvation of the solvent in the solvation shell. The kinetics of the catalytic disproportionation of the O-2(center dot-) depends on the relative Lewis acidity of the solvated Li + ion. The impact of the solvated Li+ cation on the O-2 redox reaction was also investigated.
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