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This paper discusses the FT-infrared (IR) and NMR spectroscopy results of a mesoporous silica (SBA-15) composite poly(ethylene oxide) (PEO) solid lithium polymer electrolyte. The changes in COC, CH, and ClO 4 stretching IR vibrational modes indicated a combination of multiple interactions through Lewis acid–base reactions which interrupt the PEO crystalline structure. Higher salt disassociation...
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