All-Solid-State Flexible Supercapacitors Fabricated with Bacterial Nanocellulose Papers, Carbon Nanotubes, and Triblock-Copolymer Ion Gels

We demonstrate all-solid-state flexible supercapacitors with high physical flexibility, desirable electrochemical properties, and excellent mechanical integrity, which were realized by rationally exploiting unique properties of bacterial nanocellulose, carbon nanotubes, and ionic liquid based polyme...

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Bibliographic Details
Published in:ACS nano 2012-07, Vol.6 (7), p.6400-6406
Main Authors: Kang, Yu Jin, Chun, Sang-Jin, Lee, Sung-Suk, Kim, Bo-Yeong, Kim, Jung Hyeun, Chung, Haegeun, Lee, Sun-Young, Kim, Woong
Format: Article
Language:English
Subjects:
Bacteria
Bending
Capacitors
Carbon nanotubes
Cellulose
Charge
Current density
Discharge
Electric Capacitance
Gels
Gluconacetobacter xylinus - chemistry
Microscopy, Electron, Scanning
Nanostructure
Nanotechnology
Nanotubes, Carbon - ultrastructure
Polymers
Supercapacitors
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Summary:We demonstrate all-solid-state flexible supercapacitors with high physical flexibility, desirable electrochemical properties, and excellent mechanical integrity, which were realized by rationally exploiting unique properties of bacterial nanocellulose, carbon nanotubes, and ionic liquid based polymer gel electrolytes. This deliberate choice and design of main components led to excellent supercapacitor performance such as high tolerance against bending cycles and high capacitance retention over charge/discharge cycles. More specifically, the performance of our supercapacitors was highly retained through 200 bending cycles to a radius of 3 mm. In addition, the supercapacitors showed excellent cyclability with C sp (∼20 mF/cm2) reduction of only
ISSN:1936-0851
1936-086X
DOI:10.1021/nn301971r