University of Wollongong
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Compact-designed supercapacitors using free-standing single-walled carbon nanotube films

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posted on 2024-11-15, 02:43 authored by Zhiqiang Niu, Weiya Zhou, Jun ChenJun Chen, Guoxing Feng, Hong Li, Wenjun Ma, Jinzhu Li, Haibo Dong, Yan Ren, Duan Zhao, Sishen Xie
We reported the realization of assembling compact-designed supercapacitors using large-scaled freestanding and flexible single-walled carbon nanotube (SWCNT) films as both anode and cathode. A prototype of the processing procedures was developed to obtain the uniform spreading of the SWCNT films onto the separators serving as both electrodes and charge collectors without metallic current collectors, leading to a simplified and lightweight architecture. The area of SWCNT film on a separator can be scaled up and its thickness can be extended. High energy and power densities (43.7 Wh kg-1 and 197.3 kW kg-1, respectively) were achieved from the prepared SWCNT film-based compact-designed supercapacitors with small equivalent series resistance. The specific capacitance of this kind of compact-designed SWCNT film supercapacitor is about 35 F g-1. These results clearly show the potential application of free-standing SWCNT film in compact-designed supercapacitor with enhanced performance and significantly improved energy and power densities.

History

Citation

Niu, Z, Zhou, W, Chen, J, Feng, G, Li, H, Ma, W, Li, J, Dong, H, Ren, Y, Zhao, D & Xie, S (2011), Compact-designed supercapacitors using free-standing single-walled carbon nanotube films, Energy and Environmental Science, 4(4), pp. 1440-1446.

Journal title

Energy and Environmental Science

Volume

4

Issue

4

Pagination

1440-1446

Language

English

RIS ID

57150

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