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作为CsH₂PO₄基复合电解质的有希望的聚合物添加剂,VDF/TFE的共聚物

Yuri Kungurtsev^1,2, Irina Bagryantseva^1,2, Valentina Ponomareva¹

¹Institute of Solid State Chemistry and Mechanochemistry SB RAS, 630090 Novosibirsk, Russia.

|May 26, 2023

概括

为质子膜合成了新的复合聚合物电解质. 这些材料具有良好的机械强度和高质子导电性,适合中温应用.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
聚合物科学聚合物科学

背景情况:

开发先进的电解质对于高效的能量储存和转换设备至关重要.
复合聚合物电解质提供了一个有前途的途径,将聚合物的机械灵活性与无机盐的高导电性相结合.

研究的目的:

合成和描述基于CsH2PO4和聚合物矩阵的新型复合聚合物电解质.
研究这些复合材料的电传,结构和机械性能.
评估它们作为中温应用中的质子膜的潜力.

主要方法:

合成 (1-x) CsH2PO4-xF-2M复合聚合物电解质.
阻抗光谱检测电传特性.
福里埃变换红外光谱 (FTIR) 用于结构分析.
电子显微镜和X射线衍射 (XRD) 用于结构特征.

主要成果:

在聚合物矩阵中保持CsH2PO4结构,具有良好的粒子分散.
组件之间没有观察到任何显著的化学相互作用,表明弱的接口相互作用.
复合膜 (60-100μm) 具有很高的机械强度和良好的导电性.
最佳的质子导电性,与纯的CsH2PO4相比,在x = 0.05-0.1.1时得到.
由于透效应,在较高度 (x = 0.25) 发生导电性下降.

结论:

合成的复合聚合物电解质证明适用于薄,机械强大的质子导电膜.
尽管在较高度下导电性下降,但这些材料在中间温度范围内 (180-250°C) 保持高质子导电性.
这些复合材料显示出在中间温度下运行的电化学设备中作为质子膜的潜在用途.

关键词:

二酸是二酸的重要成分之一.聚合物的共聚物.聚合物的化聚合物.聚合物电解质的高分子电解质.质子导电性的质子导电性.质子膜质子膜薄膜是一种薄膜.

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