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Open AccessArticle

Direct Writing Supercapacitors Using a Carbon Nanotube/Ag Nanoparticle-Based Ink on Cellulose Acetate Membrane Paper

1
MOE Key Laboratory of Disaster Forecast and Control in Engineering, School of Mechanics and Construction Engineering, Jinan University, Guangzhou 510632, China
2
Institute of Advances Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
*
Authors to whom correspondence should be addressed.
Polymers 2019, 11(6), 973; https://doi.org/10.3390/polym11060973
Received: 22 April 2019 / Revised: 15 May 2019 / Accepted: 17 May 2019 / Published: 3 June 2019
(This article belongs to the Special Issue Carbon-Based Polymer Nanocomposites for High-Performance Applications)
In this work, we present a cellulose acetate membrane flexible supercapacitor prepared through a direct writing method. A carbon nanotube (CNT) and silver (Ag) nanoparticle were prepared into ink for direct writing. The composite electrode displayed excellent electrochemical and mechanical electrochemical performance. Furthermore, the CNT-Ag displayed the highest areal capacity of 72.8 F/cm3. The assembled device delivered a high areal capacity (17.68 F/cm3) at a current density of 0.5 mA/cm2, a high areal energy (9.08–5.87 mWh/cm3) at a power density of 1.18–0.22 W/cm3, and showed no significant decrease in performance with a bending angle of 180°. The as-fabricated CNT/Ag electrodes exhibited good long-term cycling stability after 1000 time cycles with 75.92% capacitance retention. The direct writing was a simple, cost-effective, fast, and non-contact deposition method. This method has been used in current printed electronic devices and has potential applications in energy storage. View Full-Text
Keywords: Ag; CNT; flexible supercapacitor electrode; polymer conductive film; cellulose acetate membrane Ag; CNT; flexible supercapacitor electrode; polymer conductive film; cellulose acetate membrane
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MDPI and ACS Style

Guan, X.; Cao, L.; Huang, Q.; Kong, D.; Zhang, P.; Lin, H.; Li, W.; Lin, Z.; Yuan, H. Direct Writing Supercapacitors Using a Carbon Nanotube/Ag Nanoparticle-Based Ink on Cellulose Acetate Membrane Paper. Polymers 2019, 11, 973.

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