Liquid electrolytes containing new tailored salts for sodium-ion batteries

Anna Bitner-Michalska , Anna Krztoń-Maziopa , Grażyna Żukowska , Tomasz Trzeciak , Władysław Wieczorek , Marek Marcinek

Abstract

Sodium 4,5-dicyano-2-(pentafluoroethyl)imidazolate (NaPDI) and 4,5-dicyano-2-(trifluoromethyl) imidazolate (NaTDI) were tested in order to find the optimal solvent mixture composition for possible application in sodium battery electrolytes. The chemical structure of the above imidazolate salts is based on the stable imidazolium ring architecture substituted with electrophilic groups via carbon atoms. It has been shown here that electrolytes with these new salts exhibit high conductivity at room temperature and excellent electrochemical stability up to 4.5 V vs. sodium metal. Moreover, both salts are not corrosive to Al foil. The high performance of the new electrolytes in sodium battery technology was also confirmed by compatibility tests carried out with NaxCoO2 cathode materials.
Author Anna Bitner-Michalska KChNTCS
Anna Bitner-Michalska,,
- Chair Of Inorganic Chemistry And Solid State Technology
, Anna Krztoń-Maziopa KChNTCS
Anna Krztoń-Maziopa,,
- Chair Of Inorganic Chemistry And Solid State Technology
, Grażyna Żukowska KChNTCS
Grażyna Żukowska,,
- Chair Of Inorganic Chemistry And Solid State Technology
, Tomasz Trzeciak KChNTCS
Tomasz Trzeciak,,
- Chair Of Inorganic Chemistry And Solid State Technology
, Władysław Wieczorek KChNTCS
Władysław Wieczorek,,
- Chair Of Inorganic Chemistry And Solid State Technology
, Marek Marcinek KChNTCS
Marek Marcinek,,
- Chair Of Inorganic Chemistry And Solid State Technology
Journal seriesElectrochimica Acta, ISSN 0013-4686
Issue year2016
Vol222
Pages108-115
Publication size in sheets0.5
Keywords in EnglishLiquid electrolyte; Sodium; Sodium-ion batteries
DOIDOI:10.1016/j.electacta.2016.10.146
URL http://www.sciencedirect.com/science/article/pii/S0013468616322496
Languageen angielski
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1-s2.0-S0013468616322496-main.pdf 1.01 MB
Score (nominal)40
ScoreMinisterial score = 40.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 4.798 (2) - 2016=4.63 (5)
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