纸张超级电容器使用二氧化/碳黑复合物和基于水黄纤维素纳米纤维的双层分离器开发
Mustehsan Beg1, Keith M Alcock1, Achu Titus Mavelil1
1School of Computing and Engineering & the Built Environment, Edinburgh Napier University, Merchiston Campus, EH10 5DT Edinburgh, U.K.
ACS applied materials & interfaces
|October 28, 2023
概括
研究人员使用一种新型的双层分离器开发了环保的纸质超级电容器. 这些绿色储能设备提供了卓越的性能和对传统选项的环保替代方案.
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
- 可持续能源 可持续能源
背景情况:
- 灵活和绿色的储能对现代电子设备至关重要.
- 现有的分离器往往缺乏最佳性能和环境兼容性.
- 二氧化 (MnO2) /碳黑 (CB) 复合材料对超级电容电极有很大的希望.
研究的目的:
- 为储能设备开发一种新的,环保的双层分离器.
- 使用MnO2/CB电极制造和描述纸质超级电容器.
- 评估开发的分离器和超级电容器系统的性能.
主要方法:
- 双层分离器的两步制造过程 (冷解和非溶剂诱导的相分离).
- 在纸质基板上涂上MnO2/CB和金属加载CB复合材料的阳极电极和阴极电极.
- 分离器 (孔径,湿度,离子导电性) 和超级电容器 (特定电容,能量/功率密度) 的性能测试.
主要成果:
- 与Celgard 2320相比,双层分离器显示出更高的多孔性 (46%),可湿性 (46.5°) 和电解质吸收率 (194%).
- 分离器实现了更高的离子导电率 (0.52 mS cm-1) 和特定放电电容 (13.53%).
- 纸质超级电容器的高特异电容为34.1 mF cm-2和能量/功率密度为1.70 μWh cm-2和204.8 μW cm-2.
结论:
- 开发的环保双层纤维素分离器提高了超级电容器的性能.
- 使用这种分离器的纸质超级电容器提供了一个可持续的储能解决方案.
- 这种方法为传统的储能设备提供了一个可行的,环保的替代方案.
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