Polymer gel electrolytes for electrochromic devices

  • Vondrák J
  • Sedlaříková M
  • Reiter J
 et al. 
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Elastic and sticky polymer gel electrolytes were prepared by polymerisation of methacrylate resin to which solutions, containing LiBF4and [(C2H5)4N]BF4in various ratios in PC, were added, keeping the ionic strength constant. A concentration cell containing two polymer samples and two equal LiHgxelectrodes was used for the estimation of reversible potential. At RT, their conductivity was not much depressed by the presence of the polymer gel and it was of ohmic nature. Below -40 to -30°C, the behaviour of a high tg δ dielectric was observed and the conductivity decreased rapidly.

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  • Jiří Vondrák

  • Marie Sedlaříková

  • Jakub Reiter

  • Tomáš Hodal

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