Ionic conductivity of a PMMA based gel polymer electrolyte and its performance in solid state electrochemical cells

Sri Lankan Journal of Physics Pub Date : 2015-01-27 DOI:10.4038/SLJP.V15I0.6638

Y. Jayathilake, K. Perera, K. Vidanapathirana, L. Bandara

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引用次数: 8

Abstract

Gel polymer electrolytes are known to be very suitable for many electrochemical devices. They Gel polymer electrolytes are known to be very suitable for many electrochemical devices. They have been extensively studied for lithium based electrochemical cells. But, due to several drawbacks of lithium based cells such as safety issues, handling problems and toxicity, it is the time to develop non Li based cells. In this study, ionic conductivity of a gel polymer electrolyte (GPE) based on polymethylmethacrylate, ethylene carbonate, propylene carbonate and tetrapropylammonium iodide and its performance in an Mg / C: I 2 cell was investigated. GPE was prepared by varying salt concentration using hot pressed method and the composition, 20 PMMA / 30 EC / 30 PC / 40 Pr 4 N + I showed the highest conductivity of 5.02 x 10 -3 Scm -1 at 28 ° C. The cell in the form Mg / GPE / C+I 2 showed an average open circuit voltage of 1.9 V. The average short circuit current was 3.3 mA. It was possible to observe a good stability by the self discharge characteristics of the cell. DOI: http://dx.doi.org/10.4038/sljp.v15i0.6638 Sri Lankan Journal of Physics, Vol. 15 (2014) 11-17

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PMMA基凝胶聚合物电解质的离子电导率及其在固态电化学电池中的性能

众所周知，凝胶聚合物电解质非常适用于许多电化学装置。众所周知，凝胶聚合物电解质非常适用于许多电化学装置。它们已被广泛研究用于锂基电化学电池。但是，由于锂基电池的一些缺点，如安全问题，处理问题和毒性，是时候开发非锂基电池了。本文研究了由聚甲基丙烯酸甲酯、碳酸乙烯酯、碳酸丙烯和四丙基碘化铵组成的凝胶聚合物电解质(GPE)的离子电导率及其在Mg / C: i2电池中的性能。采用不同盐浓度的热压法制备GPE，其组成为20 PMMA / 30 EC / 30 PC / 40 Pr 4 N +I, 28℃时电导率最高，为5.02 × 10 -3 Scm -1, Mg / GPE / C+I 2的电池平均开路电压为1.9 V。平均短路电流为3.3 mA。通过电池的自放电特性可以观察到良好的稳定性。DOI: http://dx.doi.org/10.4038/sljp.v15i0.6638斯里兰卡物理杂志，Vol. 15 (2014) 11-17

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Sri Lankan Journal of Physics

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