Synthesis of gel electrolyte used in lithium-ion batteries by in-situ polymerization
발표자
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초록
내용
Recently, there are many studies to overcome shortcomings of liquid solvent. Among them, Gel polymer electrolyte is one of the replacements for liquid electrolyte. In order to synthesize the gel polymer, In-situ method was adopted. Because when using in-situ polymerization, Polymer has no space between the anode and cathode. As the interface disappears, it has a lower resistance value and a higher conductivity than a solid electrolyte. In addition, since no solvent is used, thermal stability is high and the risk of explosion is reduced. To increase the molecular weight, trimethylolpropane triglycidyl ether, which has three epoxy groups, was selected as a monomer. In addition, only one LiFSI was used for the catalyst and lithium salt. Synthesized polymer was analyzed by using 1H-NMR, FT-IR, DSC, TGA and ion conductivity.