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Synthesis and Properties of Acyclic Ammonium-based Ionic Liquids with Allyl Substituents as Electrolytes
Cited 27 time in
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Cited 14 time in Scopus
- Authors
- Issue Date
- 2009
- Publisher
- Springer Verlag
- Citation
- Molecules 2009, 14, 1840-1851
- Keywords
- ionic liquid ; ammonium ; bis(trifluoromethanesulfonyl)imide (TFSI) ; allyl substituent ; battery electrolyte
- 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).
- ISSN
- 1420-3049
- Language
- English
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