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Flexible Supercapacitors Based on Bacterial Cellulose Paper Electrodes
Author(s) -
Li Shaohui,
Huang Dekang,
Zhang Bingyan,
Xu Xiaobao,
Wang Mingkui,
Yang Guang,
Shen Yan
Publication year - 2014
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201301655
Subject(s) - supercapacitor , materials science , bacterial cellulose , capacitance , polyaniline , electrode , electrolyte , cellulose , current density , carbon nanotube , energy storage , chemical engineering , nanotechnology , composite material , polymer , power (physics) , physics , quantum mechanics , polymerization , chemistry , engineering
Supercapacitors based on freestanding and flexible electrodes that can be fabricated with bacterial cellulose (BC), multiwalled carbon nanotubes (MWCNTs), and polyaniline (PANI) are reported. Due to the porous structure and electrolyte absorption properties of the BC paper, the flexible BC‐MWCNTs‐PANI hybrid electrode exhibits appreciable specific capacitance (656 F g −1 at a discharge current density of 1 A g −1 ) and remarkable cycling stability with capacitance degradation less than 0.5% after 1000 charge–discharge cycles at a current density of 10 A g −1 . The facile and low‐cost of this binder‐free paper electrode may have great potential in development of flexible energy‐storage devices.