Preparation and Characterization of PMMA-Based Transparent Solid Polymer Electrolyte with Li Imide and Li Triflate

摘要

Polymethyl methacrylate (PMMA) was used as a host for preparing transparent solid polymer electrolytes (SPEs). Ethylene Carbonate (EC) was added as plasticizer. The salts used were pure Li Imide (LiN(CF_3SO_2)_2), pure Li Triflate (LiCF_3SO_3) and mixtures of the two. The SPEs prepared were amorphous as indicated by X-Ray Diffraction (XRD) measurements. They possessed excellent optical transmission characteristics over the visible wavelength range. The conductivity of the SPE is higher when more amount of Li Imide was used.