The double comb copolymer lithium ion polymer-gel matrix
발표자
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초록
내용
As needs for sustainable energy becomes a hot issue in international society, supercapacitor is receiving great attention due to its environment friendly and fast charging-discharging energy storage system. Mostly aqueous electrolytes are mainly used as electrolytes for supercapacitors, but there are disadvantages such as limited range of potential windows and electrolyte leakage problem. Therefore, many researches are being held to develop electrolytes using polymers using non-aqueous electrolytes. Using two step ATRP process, PVDC-g-PMMA was synthesized and was used for supercapacitor polymer electrolyte with LiTFSI salt for enhancing ionic conductivity. PVDC is the hydrophobic back bone which gives mechanical property that decrease crystallinity with grafting PMMA to PVDC and PMMA possesses the hydrophilic side chain, making electron pathway which raise the electron transport properties. The coin cell structure with two stainless steel were used to measure ionic conductivity.