新的有机离子塑料晶体利用了形态酸
Azra Sourjah1, Colin S M Kang1, Cara M Doherty2
1Institute for Frontier Materials, Deakin University, Burwood, VIC 3125, Australia. jenny.pringle@deakin.edu.au.
Physical chemistry chemical physics : PCCP
|June 12, 2023
概括
新的基于形态的有机离子塑料晶体 (OIPC) 为电池提供了更安全,准固态离子导电. 酸中的以太功能组增强了用于清洁能源应用的电解质特性.
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
- 固态化学 固态化学
背景情况:
- 有机离子塑料晶体 (OIPC) 是下一代电池的有希望的准固态电解质.
- 更深入地了解OIPC中的结构-属性关系对于优化其性能至关重要.
- 目前正在探索以功能组的酸盐以增强离子运输.
研究的目的:
- 合成和描述基于形态的新型OIPC.
- 研究阴离子结构和离子选择对OIPC特性的影响.
- 评估OIPC的潜在应用在先进的能源存储.
主要方法:
- 不同扫描热量计 (DSC) 和热重量计分析 (TGA) 测量热行为.
- 电化学阻抗光谱 (EIS) 用于离子导电.
- 位子灭绝寿命光谱 (PALS) 用于自由体积分析.
- 固态核磁共振 (NMR) 用于离子动态.
- 循环电压计 (CV) 用于电化学稳定性.
主要成果:
- [C2mmor][FSI]表现出最广泛的I相范围 (11129 °C).
- [C(i3)mmor][FSI]显示了最高的导电性 (1 × 10−6 S cm−1 在30 °C).
- [C2mmor][TFSI]显示了最大的空缺体积 (132 Å3).
结论:
- 以甲基基的OIPC与以太功能组显示可调节的热和传输特性.
- 这些OIPC显示出作为清洁能源应用,特别是电池的电解质的潜力.
- 了解阴离子/离子效应是设计优化OIPC电解质的关键.
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