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聚合物凝电解质用于MnO₂对称柔性电化学超级电容器的评估

Yu-Hao Lin¹, Wan-Tien Huang², Yi-Ting Huang²

¹Department of Environmental Engineering, National Chung Hsing University, Taichung 40227, Taiwan.

|August 26, 2023

概括

这项研究引入了新的灵活的电化学超级电容器,使用基于深度环氧溶剂的聚合物凝电解质. 聚乙烯醇-LiClO4-2-Oxazolidinone电解质在储能设备中表现出卓越的性能.

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
储能储能储能储能储能储能

背景情况:

灵活的电化学超级电容器 (FESC) 对便携式电子设备至关重要,因为它们需要先进的电极和电解质材料.
深度浸泡溶剂 (DES) 为电解质提供了有前途的特性,包括稳定性,生物相容性和成本效益.

研究的目的:

研究基于DES的聚合物凝电解质在提高FESC性能方面的潜力.
为了合成和表征二氧化 (MnO2) 对称的FESC,利用新的聚合物凝电解质.

主要方法:

使用LiClO4-2-Oxazolidinone DES与聚乙醇 (PVA) 或聚烯胺 (PAAM) 的聚合物凝电解质的配方.
用合成的电解质制造MnO2对称的FESC.
使用循环电量计 (CV),静电电荷放电 (GCD) 和电化学阻抗光谱 (EIS) 的电化学表征.

主要成果:

与聚乙烯醇-LiClO4-2-Oxazolidinone (PVA-LO) 电解质一起的FESC表现出优越的电化学和机械性能.
在2.4V电位窗口下达到121.6F/g的特定电容.
证明了高能量密度 (97.3Wh/kg在1200W/kg) 和卓越的循环寿命 (89.7%的保留5000个循环后).

结论:

聚合物凝电解质PVA-LO显著提高了FESC性能,因为其改善了离子导电性和电化学稳定性.
开发的固态FESC显示出实际可行性,成功为数字手表和LED供电.
这项研究突出了开发高性能,灵活的储能解决方案的有希望的途径.

关键词:

氧化物 Mn氧化物深层欧特克溶剂溶剂的使用电化学超级电容器是一种超级电容器.灵活的灵活的灵活的灵活的聚合物凝电解质的聚合物凝.

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