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首页> 外文期刊>International Journal of Electrochemical Science >Structural, Morphological and Electrochemical Impedance Study of CS:LiTf based Solid Polymer Electrolyte: Reformulated Arrhenius Equation for Ion Transport Study
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Structural, Morphological and Electrochemical Impedance Study of CS:LiTf based Solid Polymer Electrolyte: Reformulated Arrhenius Equation for Ion Transport Study

机译：基于CS：LiTf的固体聚合物电解质的结构，形态和电化学阻抗研究：离子输运研究的重构Arrhenius方程

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This paper discusses ion conduction mechanism in terms of reformulated Arrhenius equation.Understanding the fundamental concepts of Li ion transport is crucial for Li battery technology.Structural and morphological investigations are significant to understand the structure-propertiesrelationships. The broadening of X-ray peaks of chitosan upon the addition of LiTf salt reveals that thecrystalline domains are reduced. The SEM micrographs reveal that the samples have a smooth surface.Electrochemical impedance spectroscopy (EIS) was used to obtain the electrical and dielectricparameters. The dielectric constant and DC ionic conductivity follows the same trend with saltconcentration. The behavior of Arrhenius and modified Arrhenius equations versus temperature areclarified. The influence of dielectric constant on DC conductivity experimentally achieved. TheE (a ) K  reformulated Arrhenius equation ((T ) o exp B ) exhibited more linearity between the DCconductivity and 1000/('T). The shortcoming of Arrhenius equation can be understood from the lesslinear behavior of DC conductivity versus 1000/T. The pre-exponential factor is almost constant atdifferent temperature and independent on dielectric constant. The calculated activation energy from thereformulated Arrhenius equation is greater than that obtained from Arrhenius equation.
机译：本文通过重新构造的阿伦尼乌斯方程来讨论离子传导机理。了解锂离子迁移的基本概念对于锂电池技术至关重要。结构和形态学研究对于理解结构-特性关系具有重要意义。加入LiTf盐后，壳聚糖的X射线峰变宽，表明晶域减少。扫描电镜（SEM）显微照片显示样品表面光滑。电化学阻抗谱（EIS）用于获得电参数和介电参数。随盐浓度的变化，介电常数和直流离子电导率遵循相同的趋势。阐明了Arrhenius行为和修正的Arrhenius方程与温度的关系。通过实验实现了介电常数对直流电导率的影响。 E（a）K重新形成的Arrhenius方程（（T）o exp B）在直流电导率和1000 /（'T）之间表现出更大的线性。从直流电导率相对于1000 / T的较小线性行为可以理解Arrhenius方程的缺点。预指数因子在不同温度下几乎恒定，并且与介电常数无关。根据重新形成的Arrhenius方程计算的活化能大于从Arrhenius方程获得的活化能。

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