用于柔性和高能离子凝基微型超级电容器的电化学可扩展的改型石墨烯生产
Feng Zhou1, Haibo Huang1, Chuanhai Xiao1,2
1Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China.
Journal of the American Chemical Society
|June 13, 2018
概括
研究人员开发了一种可扩展的方法,用于生产高性能微超电容的改型石墨烯 (FG). 这些灵活的设备为先进的电子产品提供了更高的能量密度和稳定性.
科学领域:
- 材料科学
- 电化学
- 纳米技术
背景情况:
- 在微观超级电容中,可扩展的异原子改性石墨烯生产是必不可少的.
- 目前的方法在实现高质量和可加工性方面面临挑战.
研究的目的:
- 展示一种可扩展的,单阶段的电化学剥离,用于生产改性石墨烯 (FG).
- 使用合成的FG制造灵活的,高能量密度的基于离子凝的微超电容器 (FG-MSC).
主要方法:
- 在含的中性电解质中的石墨的电化学剥离.
- 对于原子薄度,侧面大小,产量和兴奋剂的FG纳米片的表征.
- 基于离子凝的FG-MSC的制造和测试.
主要成果:
- 实现了具有原子薄度,大侧面尺寸 (高达12μm),高产量 (> 70%) 和3%兴奋剂的可扩展的FG生产.
- FG-MSC显示出高能量密度 (56 mWh cm-3),其性能优于现有的微超级电容器.
- 设备具有出色的循环性 (在5000次循环后约93%),机械灵活性 (曲时保持100%),以及集成能力.
结论:
- 开发的方法可以大规模生产高质量的FG,用于先进的储能.
- 由于其高性能和耐用性,FG-MSC显示出灵活电子的巨大潜力.
- 这项研究强调了下一代微电子储能解决方案的前景.
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