Molecules 2009, 14(5), 1840-1851; doi:10.3390/molecules14051840
Article

Synthesis and Properties of Acyclic Ammonium-based Ionic Liquids with Allyl Substituents as Electrolytes

Received: 18 April 2009; in revised form: 12 May 2009 / Accepted: 13 May 2009 / Published: 15 May 2009
(This article belongs to the Special Issue Ionic Liquids)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Several new acyclic ammonium-TFSI ionic liquids with an allyl substituent(s) were synthesized and their physicochemical and electrochemical properties were characterized. [AAMM]Am-TFSI (3) with two allyl groups showed the widest electrochemical stability window (5.9 V) among the ammonium-based ILs reported to date because of the increment of both the anodic and cathodic limits. The charge-discharge performance of a LiCoO2-based half-cell containing [AAMM]Am-TFSI as an electrolyte was better in cycleability (the capacity retention ratio: 99% after 20 cycles) than that of the cell with the corresponding partially saturated analogue, [AMMP]Am-TFSI (2) (the capacity retention ratio: 92% after 20 cycles).
Keywords: ionic liquid; ammonium; bis(trifluoromethanesulfonyl)imide (TFSI); allyl substituent; battery electrolyte
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MDPI and ACS Style

Yim, T.; Choi, C.Y.; Mun, J.; Oh, S.M.; Kim, Y.G. Synthesis and Properties of Acyclic Ammonium-based Ionic Liquids with Allyl Substituents as Electrolytes. Molecules 2009, 14, 1840-1851.

AMA Style

Yim T, Choi CY, Mun J, Oh SM, Kim YG. Synthesis and Properties of Acyclic Ammonium-based Ionic Liquids with Allyl Substituents as Electrolytes. Molecules. 2009; 14(5):1840-1851.

Chicago/Turabian Style

Yim, Taeeun; Choi, Chang Young; Mun, Junyoung; Oh, Seung M.; Kim, Young Gyu. 2009. "Synthesis and Properties of Acyclic Ammonium-based Ionic Liquids with Allyl Substituents as Electrolytes." Molecules 14, no. 5: 1840-1851.

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