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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F09%3A10112461%21RIV12-MSM-11310___
rdf:type
n13:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1149/1.3133183
dcterms:description
Ionic liquids, 1-butyl-2,3-dimethylimidazolium bis(trifluoromethanesulfonyl)imide and 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide with 0.7 M lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) or 0.5 M LiPF(6), were successfully tested as electrolytes for Li(2)FeSiO(4) cathodes operating at elevated temperatures of 60 degrees C. The electrolytes based on ionic liquids show good ionic conductivity (from 3.3 x 10(-3) to 4.5 x 10(-3) S cm(-1)) together with good electrochemical stability up to 5 V vs Li/Li(+). The electrochemical stability of electrolytes based on ionic liquids against an aluminum current collector was comparable to a diethyl carbonate: ethylene carbonate (DEC:EC) 1 M LiPF(6) electrolyte and even better when the electrolytes were tested with blank electrodes (only aluminum current collector, carbon black, and binder). In the first cycle the electrochemical testing of Li(2)FeSiO(4) showed a slightly lower reversibility in ionic liquids when compared to a DEC:EC 1 M LiPF(6) electrolyte; at higher cycles the reversibility and the obtained capacity were comparable to the one obtained in a DEC:EC 1 M LiPF(6) electrolyte. All electrochemical results show that LiTFSI can be used as a salt in ionic liquid-based electrolytes. These properties allow their potential application in large-scale lithium-ion batteries with improved safety. Ionic liquids, 1-butyl-2,3-dimethylimidazolium bis(trifluoromethanesulfonyl)imide and 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide with 0.7 M lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) or 0.5 M LiPF(6), were successfully tested as electrolytes for Li(2)FeSiO(4) cathodes operating at elevated temperatures of 60 degrees C. The electrolytes based on ionic liquids show good ionic conductivity (from 3.3 x 10(-3) to 4.5 x 10(-3) S cm(-1)) together with good electrochemical stability up to 5 V vs Li/Li(+). The electrochemical stability of electrolytes based on ionic liquids against an aluminum current collector was comparable to a diethyl carbonate: ethylene carbonate (DEC:EC) 1 M LiPF(6) electrolyte and even better when the electrolytes were tested with blank electrodes (only aluminum current collector, carbon black, and binder). In the first cycle the electrochemical testing of Li(2)FeSiO(4) showed a slightly lower reversibility in ionic liquids when compared to a DEC:EC 1 M LiPF(6) electrolyte; at higher cycles the reversibility and the obtained capacity were comparable to the one obtained in a DEC:EC 1 M LiPF(6) electrolyte. All electrochemical results show that LiTFSI can be used as a salt in ionic liquid-based electrolytes. These properties allow their potential application in large-scale lithium-ion batteries with improved safety.
dcterms:title
Electrochemical Behavior of Li(2)FeSiO(4) with Ionic Liquids at Elevated Temperature Electrochemical Behavior of Li(2)FeSiO(4) with Ionic Liquids at Elevated Temperature
skos:prefLabel
Electrochemical Behavior of Li(2)FeSiO(4) with Ionic Liquids at Elevated Temperature Electrochemical Behavior of Li(2)FeSiO(4) with Ionic Liquids at Elevated Temperature
skos:notation
RIV/00216208:11310/09:10112461!RIV12-MSM-11310___
n3:aktivita
n4:I n4:Z n4:P
n3:aktivity
I, P(KJB400320701), P(LC523), P(MEB090806), Z(AV0Z40320502), Z(MSM0021620857)
n3:cisloPeriodika
7
n3:dodaniDat
n14:2012
n3:domaciTvurceVysledku
n19:5075238
n3:druhVysledku
n5:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
312798
n3:idVysledku
RIV/00216208:11310/09:10112461
n3:jazykVysledku
n7:eng
n3:klicovaSlova
lithium iron silicate; lithium-iont battery; ionic liquid
n3:klicoveSlovo
n8:lithium-iont%20battery n8:lithium%20iron%20silicate n8:ionic%20liquid
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[02B878B59D14]
n3:nazevZdroje
Journal of the Electrochemical Society
n3:obor
n18:CG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:projekt
n9:KJB400320701 n9:LC523 n9:MEB090806
n3:rokUplatneniVysledku
n14:2009
n3:svazekPeriodika
156
n3:tvurceVysledku
Gaberscek, Miran Hanzel, Darko Reiter, Jakub Dominko, Robert Nádherná, Martina
n3:wos
000267887500017
n3:zamer
n12:MSM0021620857 n12:AV0Z40320502
s:issn
0013-4651
s:numberOfPages
8
n16:doi
10.1149/1.3133183
n21:organizacniJednotka
11310