Electrochemical characterisation of a lithium-ion battery electrolyte based on mixtures of carbonates with a ferrocene-functionalised imidazolium electroactive ionic liquid

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DOIResolve DOI: http://doi.org/10.1039/c3cp50560j
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TypeArticle
Journal titlePhysical Chemistry Chemical Physics
ISSN1463-9076
Volume15
Issue20
Pages77137721; # of pages: 9
AbstractElectrolytic solutions of lithium-ion batteries can be modified with additives to improve their stability and safety. Electroactive molecules can be used as such additives to act as an electron (redox) shuttle between the two electrodes to prevent overcharging. The electroactive ionic liquid, 1-ferrocenylmethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide (TFSI), was synthesised and its electrochemical properties were investigated when diluted with ethylene carbonate-diethyl carbonate solvent at various concentrations. Cyclic voltammetry data were gathered to determine the redox potential, diffusion coefficient and heterogeneous rate constants of the electroactive imidazolium TFSI ionic liquid in the carbonate solution. The properties of this molecule as an additive in lithium battery electrolytes were studied in standard coin cells with a metallic Li anode and a Li 4Ti5O12 cathode. © the Owner Societies 2013.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21270694
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Record identifier512d3021-1e2a-4a5b-ac4a-2758be3a968e
Record created2014-02-17
Record modified2016-05-09
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