PEI-LiTFSI electrolytes for electrochromic devices: Characterization by differential scanning calorimetry and viscosity measurements
2010 (English)In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 94, no 12, 2399-2404 p.Article in journal (Refereed) Published
Polymer electrolytes containing poly(ethylene imine) (PEI) and lithium bis(trifluoromethylsulfonyl) imide (LiTFSI) can serve as model electrolytes for electrochromic devices. Such electrolytes were characterized by differential scanning calorimetry, conductivity, and viscosity measurements. The glass transition temperature (T-g) and viscosity of the PEI-LiTESI electrolytes have minima at a [N]:[Li] ratio of 100:1. Both T-g and viscosity increased at high salt concentrations. The temperature dependences of ionic conductivity and viscosity followed an Arrhenius equation with parameters depending only weakly on the salt concentration. The fluid behavior of the electrolytes could be reconciled with the Bingham plastic model with parameters being functions of salt concentration.
Place, publisher, year, edition, pages
2010. Vol. 94, no 12, 2399-2404 p.
Polymer electrolyte, Electrochromic, Smart window, PEI, DSC, Viscosity
Chemical Sciences Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-135307DOI: 10.1016/j.solmat.2010.08.025ISI: 000283959500066OAI: oai:DiVA.org:uu-135307DiVA: diva2:375703