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Electrochemistry in the Medium of PMMA Gel Electrolytes
Reiter, Jakub ; Vondrák, Jiří ; Sedlaříková, M. ; Velická, Jana ; Nečesal, P.
Polymer gel electrolytes are used in the electrochemistry of lithium batteries and electrochromic devices. Their investigation started in our department in 1997, when first results were published on the International Seminar on Inclusion Compounds. Investigation of electric conductivity showed, that the specific conductivity of a 0.25 M LiBF4 solution was not lowered by an addition of solid PMMA polymer more than by 40-50%. We have developed a new method preparation of gel polymer electrolyte: after a mixung of anhydrous perchlorate solution in propylencarbonate (lithium, sodium, cadmium and other sals) with monomeric and oligomeric metylmetacrylate we hawe obtained an elastic and homogenous polymer with good optical properties.
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