作为高能量密度固态电池的电解质,用酸功能化聚 (酸) 作为电解质
Faruk Okur1,2, Yauhen Sheima3, Can Zimmerli1,2
1Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH, Zurich, CH-8093, Zürich, Switzerland.
ChemSusChem
|December 5, 2023
概括
研究人员开发了用于更安全的固态离子电池的新型聚氧聚合物. 这些聚合物表现出高离子导电性和稳定性,显示出先进的储能应用的前景.
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
- 聚合物化学 聚合物化学
背景情况:
- 离子电池中的液体电解质存在安全风险.
- 聚氧聚合物由于其特性,具有作为固态电解质替代品的潜力.
- 聚氧骨干的功能化是提高性能的关键.
研究的目的:
- 合成和描述用于离子导电的新型聚氧基聚合物.
- 评估这些新聚合物电解质的离子导电性和电化学稳定性.
- 评估它们在离子电池配置中的性能.
主要方法:
- 通过与2-cyanoethanethiol反应合成聚氧聚合物.
- 使用亚基组的功能化 (60%每个链单位).
- 添加了二三甲硫) 胺盐.
- 在高温下测量离子导电性.
- 在对称和全细胞中评估电化学性能.
主要成果:
- 在60°C时达到高达0.375mS/cm的高离子导电性.
- 获得了0.73.3的高Li+离子转移数.
- 作为电解质在离子电池配置中的证明适用性.
结论:
- 合成的化功能化聚氧聚合物是离子电池的有希望的固体电解质.
- 这些聚合物提供了一种更安全的替代液体电解质,具有出色的离子导电性.
- 进一步的研究可以探索它们在实际电池系统中的长期稳定性和性能.
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