Influence of different anions of lithium salts on GPE membrane

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS: ICAM 2019 Pub Date : 2019-10-29 DOI:10.1063/1.5130357

Chithra M. Mathew, S. Rajendran

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Abstract

Polymer membrane composed of PVdC-AN/PMMA/EC with different anions of lithium salts were prepared using solution casting technique. A substantial change in ionic conductivity is observed in the vibrational and electrochemical analysis spectra, which may be due to the combined effect of ionic mobility, cation radii and dissociation constant. The conductance spectra and complex dielectric analysis shows that the sample containing LiAsF6 salt shows better performance. There is stronger interaction between oxygen atoms in the ether and carbonyl groups and lithium ions, than that with nitrogen atoms, which can found from infrared spectroscopic analysis.Polymer membrane composed of PVdC-AN/PMMA/EC with different anions of lithium salts were prepared using solution casting technique. A substantial change in ionic conductivity is observed in the vibrational and electrochemical analysis spectra, which may be due to the combined effect of ionic mobility, cation radii and dissociation constant. The conductance spectra and complex dielectric analysis shows that the sample containing LiAsF6 salt shows better performance. There is stronger interaction between oxygen atoms in the ether and carbonyl groups and lithium ions, than that with nitrogen atoms, which can found from infrared spectroscopic analysis.

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锂盐阴离子对GPE膜性能的影响

采用溶液铸造法制备了含不同阴离子锂盐的pvc - an /PMMA/EC聚合物膜。在振动和电化学分析光谱中观察到离子电导率的显著变化，这可能是离子迁移率、阳离子半径和解离常数共同作用的结果。电导谱和复介电分析表明，含LiAsF6盐的样品具有更好的性能。红外光谱分析发现，醚中的氧原子与羰基和锂离子之间的相互作用比与氮原子之间的相互作用更强。采用溶液铸造法制备了含不同阴离子锂盐的pvc - an /PMMA/EC聚合物膜。在振动和电化学分析光谱中观察到离子电导率的显著变化，这可能是离子迁移率、阳离子半径和解离常数共同作用的结果。电导谱和复介电分析表明，含LiAsF6盐的样品具有更好的性能。红外光谱分析发现，醚中的氧原子与羰基和锂离子之间的相互作用比与氮原子之间的相互作用更强。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS: ICAM 2019

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