期刊
ACS NANO
卷 6, 期 7, 页码 6400-6406出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn301971r
关键词
bacterial nanocellulose; carbon nanotube; ion gel; triblock copolymer; supercapacitor
类别
资金
- National Research Foundation of Korea [2011-0023727]
- National Research Foundation of Korea [2011-0023727] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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 (similar to 20 mF/cm(2)) reduction of only <0.5% over 5000 charge/discharge cycles at the current density of 10 A/g. Our demonstration could be an important basis for material design and development of flexible supercapacitors.
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