期刊
CHEMICAL ENGINEERING JOURNAL
卷 349, 期 -, 页码 168-175出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2018.05.090
关键词
Supercapacitor; Stretchability; Hierarchical structures; Carbon tubular nanostructures; Polyaniline
资金
- National Natural Science Foundation of China [51602265]
- Scientific and Technological Projects for Distinguished Young Scholars of Sichuan Province [2015JQ0013]
- China Postdoctoral Science Foundation [2016M592692]
- Fundamental Research Funds for the Central Universities of China [A0920502051619-72]
- Independent Research Project of State Key Laboratory of Traction Power [2017TPL_Z04, 2016TPL_Z03]
Conventional flexible supercapacitors that can work under consecutive bending, folding and even twisting without performance degradation have been widely reported. Nevertheless, these devices can hardly be used under large tensile strain due to limited stretchability. In this regard, the application field of flexible supercapacitors can be remarkably broaden if they are designed as stretchable power supplies for wearable electronic devices. Herein, we report a stretchable supercapacitor electrode through in situ synthesis of hierarchical carbon tubular nanostructures (hCTNs) and conducing polyaniline (PANI) onto stainless steel spring (SSS) which features both excellent conductivity and high stretchability. The as-prepared helical electrode exhibits considerable specific capacitance of 277.8 F g(-1) at 1 A g(-1) and unprecedented linear capacitance of 402.8 mF cm (-1) at the current density of 1 mA cm(-1) , which is much higher than most previously reported literatures. Besides, electrochemical performance of this electrode can be maintained under various mechanical loading such as compressing and bending. Additionally, 100% tensile strain of electrode is successfully demonstrated without sacrificing its electrochemical performance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据