具有调节电压的阳离子摇椅电池,使用基于viologen和phenothiazine聚合物的电极
Manik Bhosale1, Caroline Schmidt2, Philipp Penert1
1Institute of Organic Chemistry II and Advanced Materials, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
ChemSusChem
|October 30, 2023
概括
研究人员使用viologen和phenothiazine聚合物开发了一种全新的全有机电池. 这种离子摇椅电池在100个循环后实现了79%的容量保留,证明了可持续能源存储的潜力.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 有机电极材料使完整的细胞能够在阳离子摇椅模式下运行.
- 这需要p型氧化还原活性材料,它们的氧化还原过程之间有很大的潜在差距.
研究的目的:
- 在全有机全细胞中研究viologen功能化的聚乙烯作为负电极,并配合表胺聚合物作为正电极.
- 评估交叉连接的viologen聚合物 (X10-PVBV) 与线性PVBV的性能及其在全细胞配置中的适用性.
主要方法:
- 作为负电极材料的生物功能化聚钢 (X10-PVBV) 的制造和电化学测试.
- 在全有机全细胞中,X10-PVBV与交叉连接的聚3-乙烯-N-甲基提亚 (X-PVMPT) 阳性电极的集成.
- 优化电池配置和电压范围,以确定最佳的运行潜力.
主要成果:
- 与线性PVBV相比,交叉连接的viologen聚合物 (X10-PVBV) 显示出更高的性能.
- 全电池,利用X10-PVBV作为负电极和X-PVMPT作为正电极,在第一个周期中实现了64mA h g-1 (X-PVMPT) 的特异性放电容量.
- 在100个循环后,在0.9V的运行潜力下,保持了79%的容量保留.
结论:
- 这项研究介绍了少数报道的离子摇椅完全有机细胞之一.
- 开发的细胞证明了在有机电池中使用基于氨酸的聚合物作为正电极材料的可行性.
- 这些发现突出了这些有机材料在可持续和高效的储能应用中的潜力.
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