The beneficial effect of protic ionic liquids on the lithium environment in electrolytes for battery applications
作者： Thomas Vogl , Sebastian Menne , Ruben-Simon Kühnel , Andrea Balducci
DOI: 10.1039/C3TA15224C
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摘要: This work reports the improved rate performance of ionic-liquid based lithium-ion batteries by replacement conventional aprotic ionic liquid (AIL) N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR14TFSI) protic liquids (PILs). Two model pyrrolidinium-TFSI PILs are synthesized and their mixtures with lithium (LiTFSI) characterized in terms conductivity, viscosity self-diffusion coefficients. Raman measurements show pronounced differences TFSI− coordination to Li+ between AIL PILs. is coordinated significantly fewer anions investigated PILs, which discussed as likely cause for much vanadium phosphate-based electrodes these electrolytes.
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