A Solid Polymer Electrolyte from Cross-Linked Polytetrahydrofuran for Calcium Ion Conduction,ACS Applied Polymer Materials

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A Solid Polymer Electrolyte from Cross-Linked Polytetrahydrofuran for Calcium Ion Conduction
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2019-06-17 , DOI: 10.1021/acsapm.9b00371
Jiayue Wang ₁ , Francielli S. Genier ₁ , Hansheng Li ₁ , Saeid Biria ₁ , Ian D. Hosein ₁

Affiliation

Solid networks are produced from polytetrahydrofuran (PTHF) and 3,4-epoxycyclohexylmethyl-3′,4′-epoxycyclohexane carboxylate through visible-light-initiated photo-cross-linking. The networks were loaded with different quantities of calcium nitrate to create solid polymer electrolytes (SPEs). The ion conductivity was determined by impedance spectroscopy, and the thermal properties were determined by thermogravimetric analysis and differential scanning calorimetry. All samples were rubber-like and stable over a temperature range of 30–120 °C. With greater salt loading, the ion conductivity of the electrolytes first increases and then decreases. A sample with a molar O:Ca ratio of 1.9 yielded the highest conductivity of 1.14 × 10^–4 S/cm at room temperature and transference number of 0.359 at 70 °C. The response of conductivity to temperature is modeled with both VTF and Arrhenius equations. This copolymer system provides an approach to calcium ion solid electrolytes for solid-state calcium ion batteries.

中文翻译：

交联聚四氢呋喃的固体聚合物电解质用于钙离子传导

固体网络是由聚四氢呋喃（PTHF）和3,4-环氧环己基甲基-3'，4'-环氧环己烷羧酸酯通过可见光引发的光交联产生的。网络中装有不同数量的硝酸钙，以生成固体聚合物电解质（SPE）。通过阻抗光谱法确定离子电导率，并且通过热重分析和差示扫描量热法确定热性质。所有样品均为橡胶状，在30–120°C的温度范围内稳定。随着更大的盐负荷，电解质的离子电导率首先增加，然后降低。O：Ca摩尔比为1.9的样品的最高电导率为1.14×10 ^–4在室温下为S / cm，在70°C下的迁移率为0.359。用VTF和Arrhenius方程对电导率对温度的响应进行建模。该共聚物系统提供了用于固态钙离子电池的钙离子固体电解质的方法。

更新日期：2019-06-17

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