基于树纸的可扩展和灵活的超级电容器设计:优化电化学性能和可靠性
Seonghun Lee1, Ji Young Park1, Hyungsub Yoon2
1Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea.
ACS applied materials & interfaces
|October 13, 2025
概括
这项研究介绍了一种高性能,灵活的超级电容器,使用碳化木纸. 这种新的设计增强了可穿戴设备的能量存储,克服了传统纸质技术的局限性.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 纸质超级电容器提供可再生,灵活和轻量级的储能解决方案.
- 主要挑战包括有限的电化学导电性和纸质材料的不良稳定性.
- 高性能应用需要克服这些固有的局限性.
研究的目的:
- 使用碳化木纸 (cMP) 设计一个可扩展和灵活的超级电容器.
- 通过整合TiO2纳米粒子和减少的氧化石墨烯来提高电化学性能和可靠性.
- 展示实用,大规模可穿戴式能源存储的潜力.
主要方法:
- 碳化木纸 (cMP) 电极的制造.
- 集成TiO2纳米颗粒与cMP纤维上的减少氧化石墨烯强度结合.
- 电化学表征包括循环电压测量和电荷-放电循环.
- 在机械应力下测试大面积的灵活超级电容器.
主要成果:
- 电容性显著增加,从8.5到153mF cm-2在5.0mV s-1.
- 在3000个循环后,电极在1.0 mA cm-2下保持了75%的电容,在8.0 mA cm-2下保持了80%的电容.
- 一个40平方厘米的柔性超级电容器显示了95.6%的放电时间和99.3%的电容保持在曲和扭曲下.
结论:
- 开发的基于cMP的超级电容器表现出卓越的电化学性能和可靠性.
- 在cMP纤维上强大的TiO2和rGO结合对于增强性质至关重要.
- 这项工作为可穿戴电子产品中可扩展,灵活的超级电容器铺平了道路.
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