The Application Of A New Carbonate In Electrolyte

Glycerol carbonate is a multifunctional compound usable as a solvent, due to its low toxicity, low evaporation rate, low flammability, and high boiling point. The structure of GC is similar with PC and EC. This paper studies the application of glycerol carbonate in electrolyte, which is used as organic solvent in the liquid electrolytes or as plasticizer in polymer electrolytes.LiClO4was added into GC used as organic liquid to prepare liquid electrolyte with different concentration. The article discusses the electrochemical properties, chemical properties and electrochromism. The decomposition Potential for liquid electrolyte (C LiClO4=0.75mol·L-1) was up to3.5V. It reveals that these electrolyte compositions would be suitable for ECD (Vs2.0V). The room temperature conductivity was of the order of0.63×10-3S·cm-1. The transmission variation of the device at the wavelength of550nm was about12.5%. The coloration efficiency at550nm obtained from these results is about16.39cm2·C-1. LiClO4was added into GC used as organic liquid to prepare liquid electrolyte with different concentration. The article discusses the electrochemical properties, chemical properties and electrochromism. The decomposition Potential for liquid electrolyte (C LiClO4=0.75mol·L-1) was up to3.5V. It reveals that these electrolyte compositions would be suitable for ECD (Vs2.0V). The room temperature conductivity was of the order of0.74×10-3S·cm-1.Polymer electrolyte consisting of poly(AN-MMA), glycerol carbonate and LiClO4have been prepared by bulk polymerization. The effect of the plasticizer on the conductivity of the copolymer electrolyte was studied. A combination of X-ray diffraction (XRD), cyclic voltammograms (CV), AC impedance and differential scanning calorimetry (DSC) studies have carrid out to characterize the properties of the polymer electrolyte. For the electrolyte chosen to make electrochromic smart window with the configuration:glass/fluor-doped tin oxide (FTO)/WO3P(AN-MMA)-GC-LiClO4/CeO2-TiO2/FTO/glass, the conductivity was found to be of the order of0.33×10-3S·cm-1at room temperature. XRD and DSC studies have indicated enhancement in the amorphous phase of polymer due to the addition of plasticizer. The device was tested up to600cycles showing a fast coloring/bleaching behavior. The transmission variation at the wavelength of550nm was about20.1%in300cycles. The coloration efficiency at550nm obtained from these results is about6.89cm2·C-1.