Graphene/polyaniline woven fabric composite films as flexible supercapacitor electrodes

Xiaobei Zang; Xiao Li; Miao Zhu; Xinming Li; Zhen Zhen; Yijia He; Kunlin Wang; Jinquan Wei; Feiyu Kang; Hongwei Zhu

doi:10.1039/C5NR00584A

Graphene/polyaniline woven fabric composite films as flexible supercapacitor electrodes†

Xiaobei Zang,^a Xiao Li,^ab Miao Zhu,^ab Xinming Li,^c Zhen Zhen,^ab Yijia He,^ab Kunlin Wang,^a Jinquan Wei,^a Feiyu Kang^ad and Hongwei Zhu*^ab

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* Corresponding authors

^a School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Materials Processing Technology (MOE), Tsinghua University, Beijing 100084, China
E-mail: hongweizhu@tsinghua.edu.cn

^b Center for Nano and Micro Mechanics (CNMM), Tsinghua University, Beijing 100084, China

^c National Center for Nanoscience and Technology, Zhongguancun, Beijing 100190, China

^d Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China

Abstract

We report the design and preparation of graphene and polyaniline (PANI) woven-fabric composite films by in situ electropolymerization. The introduction of PANI greatly improves the electrochemical properties of solid-state supercapacitors which possess capacitances as high as 23 mF cm⁻², and exhibit excellent cycling stability with ∼100% capacitance retention after 2000 cycles. The devices have displayed superior flexibility with improved areal specific capacitances to 118% during deformation.

Nanoscale

Graphene/polyaniline woven fabric composite films as flexible supercapacitor electrodes†

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