121st General Meeting of the KCS

Type Poster Presentation
Area Electrochemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code ELEC.P-625
Subject Porous gel polymer electrolyte prepared using EC in lithium ion batteries
Authors Yeon-Kyung Shin, Min-Cheol Kim, Sang-Hyun Moon, Eun-Soo Kim, Ji-Eun Lee, Sojeong Choi, Kyung-Won Park*
Department of Chemical Engineering, Soongsil University, Korea
Abstract In Lithium ion batteries(LIBs), Replacing the separator and the liquid electrolyte with the gel polymer electrolyte can satisfy the high energy density required for the electric vehicle. Therefore, In this study, polymer matrix based on P(VDF-HFP) for producing gel polymer electrolyte is made to have a pore structure by using EC (Ethylene carbonate), The effect of pores formed via EC was confirmed by electrochemical analysis. It was fabricated by a method of forming pores through the vaporization stage of EC further in the drying process and SEM analysis was performed to confirm formation of pores. The gel polymer electrolyte using the produced polymer matrix is ​​undergoing electrochemical evaluation through charge-discharge analysis and cyclic voltammetry analysis. When many of the pores are formed via EC, many organic electrolyte solutions are preserved, which makes ion transfer faster. It shows the stability of capacity, the high rate-capability and high ion conductivity.
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