自然杂志 ›› 2016, Vol. 38 ›› Issue (2): 101-104.doi: 10.3969/j.issn.0253-9608.2016.02.005

• 专题综述 • 上一篇    下一篇

石墨烯柔性超级电容器

臧晓蓓①②,康飞宇,朱宏伟   

  1. 清华大学深圳研究生院,广东深圳 518055;②清华大学材料学院,北京 100084
  • 出版日期:2016-04-25 发布日期:2016-05-05

Graphene flexible supercapacitors

ZANG Xiaobei①②, KANG Feiyu, ZHU Hongwei   

  1. ①Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, Guangdong Province, China;②School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • Online:2016-04-25 Published:2016-05-05

摘要:

石墨烯具有独特的二维纳米结构、高比表面积和优异的电化学性能,而且变形后仍保持器件的原始性能。分析了石墨烯柔性超级电容器的工作原理,研究了以石墨烯为电极材料的柔性超级电容器的变形特性,其变形类型可由小角度弯曲、卷曲和拉伸扩展至任意静态变形,甚至动态变形。最后对石墨烯柔性电容器在便携式电子器件中的应用进行了展望。

Abstract:

Graphene is a typical two-dimensional monatomic-layered material and has high theoretical electrochemical capacitance. The working mechanism of graphene supercapacitors is investigated. The deformation properties of flexible supercapacitors based on graphene electrodes are studied. The type of deformations can be extended from static bending, curl and stretching to arbitrary even dynamic deformation. Finally, the application prospect of flexible graphene supercapacitors is envisioned in portable electronics.