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首页> 外文期刊>Organic Electronics >Highly conductive and mechanically robust nanocomposite polymer electrolytes for solid-state electrochemical thin-film devices
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Highly conductive and mechanically robust nanocomposite polymer electrolytes for solid-state electrochemical thin-film devices

机译：用于固态电化学薄膜器件的高导电且机械强度高的纳米复合聚合物电解质

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摘要

Ionic liquid-based polymer electrolyte composites (PECs) with high mechanical strength and ionic conductivity were fabricated by using a semicrystalline homopolymer network. Morphological, mechanical, and electrical properties of semicrystalline homopolymer-based PECs were investigated over the composition range of 10-50 polymer wt%. The PECs consisted of poly(vinylidene fluoride) (PVDF) and a room-temperature ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMI] [TFSI]). The amorphous PVDF chains were solvated by the liquid electrolyte and interconnected the phase-separated PVDF crystalline-domains, acting as physical crosslinks. The ionic conductivity and specific capacitance of the homopolymer PECs were found to be very high, ranging from 0.4 to 4.9 mS/cm and from 2.6 to 9.1 mu F/cm(2), respectively. The elastic moduli of the PECs that range from 4 to 38 MPa were also greater than those of PECs prepared by using other polymeric networks. These PECs were successfully applied as electrolyte membranes in electrical double layer supercapacitors and as high-capacitance gate insulators in electrochemical thin-film transistors. These results provide detailed systematic data for fabricating high-performance solid polymer electrolytes for electrochemical thin-film devices.
机译：通过使用半结晶均聚物网络制造了具有高机械强度和离子电导率的离子液体基聚合物电解质复合材料（PEC）。在10-50聚合物wt％的组成范围内研究了基于半结晶均聚物的PEC的形态，机械和电学性质。 PEC由聚偏二氟乙烯（PVDF）和室温离子液体1-乙基-3-甲基咪唑鎓双（三氟甲基磺酰基）酰亚胺（[EMI] [TFSI]）组成。非晶态PVDF链被液体电解质溶解，并互连了相分离的PVDF晶畴，充当物理交联键。发现均聚物PEC的离子电导率和比电容非常高，分别为0.4至4.9 mS / cm和2.6至9.1μF / cm（2）。 PEC的弹性模量范围为4至38 MPa，也比使用其他聚合物网络制备的PEC的弹性模量更大。这些PEC已成功地用作双电层超级电容器中的电解质膜和电化学薄膜晶体管中的高电容栅极绝缘体。这些结果为制造用于电化学薄膜器件的高性能固体聚合物电解质提供了详细的系统数据。

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