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Conduction Properties of PTMSPMA-PEO and Its Application as Polymer Electrolyte in LiFePO4 Batteries

Conduction Properties of PTMSPMA-PEO and Its Application as Polymer Electrolyte in LiFePO4 Batteries
Sahrul Hidayat, Orina Amelia, Iman Rahayu, Fitrilawati
Universitas Padjadjaran, Materials Science Forum Vol 827 (2015) pp 125-130 © (2015) Trans Tech Publications, Switzerland doi:10.4028/www.scientific.net/MSF.827.125
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Universitas Padjadjaran, Materials Science Forum Vol 827 (2015) pp 125-130 © (2015) Trans Tech Publications, Switzerland doi:10.4028/www.scientific.net/MSF.827.125
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The conduction properties of polymer composite PTMSPMA-PEO as electrolyte in lithium-ion batteries has been investigated. The gel polymer of PTMSPMA was synthesized by solgel method using 3-(Trimethoxysilyl)-propyl-methacrylate as monomer. The Composite of PTMSPMA-PEO with various composition (50:50, 60:40, 80:20; wt%) was made by solution method. The polymer electrolyte was composed of LiCIO4 salt dissolved in propylene carbonate and mixed with PTMSPMA-PEO. The ionic conduction of polymer electrolyte was characterized by electrochemical impedance spectroscopy. The battery performance of polymer electrolyte was estimated with coin cell, where LiFePO 4 was used as cathode and graphite was use as anode. The high ionic conductivity of 6.67 x10-3 S/cm has been observed for the composition of PTMSPMA :PEO 60:40 (wt%) in room temperature. The performance of cell battery was investigated by chargedischarge using constant current 0,1 mA/cm 2 . The operational voltage of cell battery is around 1 V until 2.2 Volt with Columbic efficiency around 60%.

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