使用丝纤维素材料复合材料为绿色,灵活的超级电容器
Xuelian Liu1, Nicholas Ostrovsky-Snider1, Marco Lo Presti1
1Silklab, Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States.
ACS biomaterials science & engineering
|July 11, 2024
概括
研究人员使用丝纤维蛋白复合材料开发了一种新的生物聚合物超级电容器. 这种环保的储能解决方案为可穿戴电子设备和医疗设备提供高性能和机械灵活性.
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
- 生物技术是生物技术.
背景情况:
- 能源存储中对可持续和高性能材料的需求日益增长.
- 需要适应可穿戴技术,智能传感器和可植入医疗设备的可适应能源存储解决方案.
- 储能系统的环境影响和效率考虑.
研究的目的:
- 为了展示一个完全基于生物聚合物的超级电容器,具有显著的性能.
- 为了利用丝纤维素 (SF) 复合材料进行环保的能量储存.
- 开发机械坚固和电化学稳定的生物友好型储能设备.
主要方法:
- 使用三个不同的丝纤维素 (SF) 复合材料制造超级电容器:可光交叉链接的SF (Sil-MA) 水凝,SF-多多巴胺 (SF-PDA) 和SF生物塑料.
- 利用这些复合材料作为凝电解质,电极粘合剂和封装.
- 电化学性能的表征,包括电容和循环寿命,以及机械性能 (伸展性,弹性,压缩性).
主要成果:
- 在10 mA cm-2下达到大于0.2 F cm-2的电容.
- 在20,000个循环后,证明了94%的电容保留.
- 由此产生的超级电容器表现出伸展性,灵活性和压缩性,同时保持电化学性能.
结论:
- 开发的生物聚合物超级电容器提供了一种高性能,环保的储能解决方案.
- SF复合材料的组合创建了一个机械和电化学强大的系统.
- 生物材料和制造技术为水性电化学能量存储提供了基础,特别是用于可穿戴电子产品.
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