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

Xipeng Guan; Lin Cao; Qin Huang; Debin Kong; Peng Zhang; Huaijun Lin; Wei Li; Zhidan Lin; Hong Yuan

doi:10.3390/polym11060973

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

Polymers (Basel). 2019 Jun 3;11(6):973. doi: 10.3390/polym11060973.

Authors

Xipeng Guan^{1

2}, Lin Cao³, Qin Huang⁴, Debin Kong⁵, Peng Zhang⁶, Huaijun Lin⁷, Wei Li⁸, Zhidan Lin⁹, Hong Yuan¹⁰

Affiliations

¹ MOE Key Laboratory of Disaster Forecast and Control in Engineering, School of Mechanics and Construction Engineering, Jinan University, Guangzhou 510632, China. guanxipeng@jnu.edu.cn.
² Institute of Advances Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China. guanxipeng@jnu.edu.cn.
³ Institute of Advances Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China. linc19993@163.com.
⁴ Institute of Advances Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China. hq2502@126.com.
⁵ Institute of Advances Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China. 13580457530@163.com.
⁶ Institute of Advances Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China. tzhangpeng@jnu.edu.cn.
⁷ Institute of Advances Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China. hjlin@jnu.edu.cn.
⁸ Institute of Advances Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China. liweijnu@126.com.
⁹ Institute of Advances Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China. linzd@jnu.edu.cn.
¹⁰ MOE Key Laboratory of Disaster Forecast and Control in Engineering, School of Mechanics and Construction Engineering, Jinan University, Guangzhou 510632, China. tyuanhong@jnu.edu.cn.

Abstract

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.

Keywords: Ag; CNT; cellulose acetate membrane; flexible supercapacitor electrode; polymer conductive film.