聚烯酸 - - 接种 - - 聚烯合聚合物作为可伸缩超级电容器的内在弹性电极
Qing Yang1, Jun Wang1, Jie Luo1
1School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China.
ACS applied materials & interfaces
|August 3, 2023
概括
研究人员开发了一种全有机共聚合物,用于拉伸式超级电容器中的弹性电极. 这种材料表现出极好的机械和电化学稳定性,通过1000次拉伸周期保持性能.
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
- 聚合物科学 聚合物科学
背景情况:
- 开发灵活的超级电容器需要具有强大的机械和电化学稳定性的弹性电极.
- 现有的弹性复合电极经常遭受电活性材料在变形下脱离,导致不稳定.
研究的目的:
- 提出一种全有机共聚合物,用于作为可伸缩超级电容器中的弹性电极.
- 研究用于储能应用的这种新材料的机械和电化学性能.
主要方法:
- 将聚烯基聚合物移植到一个胀的聚烯酸弹性体上,以创建一个单一的共聚合物.
- 聚合物结构的特征,包括纹的聚烯烯涂层与弹性核心共连接.
- 使用共聚合物电极和酸性水凝电解液制造可伸缩的超级电容器.
主要成果:
- 由此产生的共聚物表现出内在的弹性,在各种变形 (曲,扭曲,拉伸) 下保持结构完整性.
- 接种的多聚醇显示了密集的聚合,导致电导率为41.6 S cm-1.1.
- 制造的超级电容器实现了 430 mF cm-2.2 的特定电容.
- 超级电容器在1000次拉伸释放周期后显示了100%的电容保留.
结论:
- 这种新型全有机共聚物为制造可拉伸超级电容器的机械和电化学稳定电极提供了一个有希望的解决方案.
- 该材料的独特结构和特性确保可靠的电化学性能,即使在显著的机械应力下.
- 这项工作突出了共价连接的全有机共聚合物的潜力,用于先进的灵活能源存储设备.
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