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用热响应性离子液体增强基于CA的分离器:通往环保膜生产和多方面的应用的道路

Do Chun Nam Kung¹, Jihyeon Moon², Hyo Kang²

¹Department of Chemistry and Energy Engineering, Sangmyung University, Seoul 03016, Republic of Korea.

Carbohydrate polymers

|May 6, 2024

概括

一种新型的温度敏感的离子液体[N4444][SS]被整合到纤维素酸电池分离器中. 这种增强的离子液分离器改善了离子传输和导电性,用于更绿色的电池技术.

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:

开发先进的电池分离器对于提高离子电池性能和安全至关重要.
在电池制造中,越来越多地寻求环保材料,以减少对生态的影响.
纤维素酸 (CA) 是一个有前途的生物降解聚合物用于电池分离器应用.

研究的目的:

为了合成和表征一个对温度敏感的离子液体,[N4444][SS].
将[N4444][SS]纳入纤维素酸盐 (CA) 矩阵,以创建一个新的电池分离器.
评估开发的离子电池的CA/[N4444][SS]电池分离器的性能和结构特性.

主要方法:

合成[N4444][SS]并将其纳入基于CA的膜.
制造具有不同干燥温度 (25°C和50°C) 的电池分离器.
使用TGA,DSC,FT-IR等技术进行表征,并分析水流量和Gurley值.

主要成果:

在50°C干燥的CA/[N4444][SS]膜表现出增加的厚度,较小的平均孔隙大小和不对称的内部结构.
这种膜显示水流量显著增加,格雷利值较低,表明扭曲性和孔隙阻力降低.
证实[N4444][SS]通过协调结合在CA矩阵内保持,这是热和光谱分析所证明的.

结论:

开发的CA/[N4444][SS]电池分离器显示了增强的离子传输特性和导电性.
不对称的结构和优化的孔状特征有助于提高分离器性能.
离子液体的可回收性和AC的使用促进了更可持续和环保的电池技术.

关键词:

纤维素乙酸盐的使用情况多孔性多孔性分离器分离器分离器分离器热敏的离子液体热响应

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