Journal
ENERGY STORAGE MATERIALS
Volume 30, Issue -, Pages 412-419Publisher
ELSEVIER
DOI: 10.1016/j.ensm.2020.05.034
Keywords
Microsupercapacitor; Nitrogen-doped graphene ink; 3D printing; Solution processing; Areal energy density
Funding
- Young Talent Support Plan of Xi'an Jiaotong University
- China Postdoctoral Science Foundation [2019M653609, 2019M663690]
- National Natural Science Foundation of China [51907149, 11674263, U1866203]
- Innovation Capability Support Program of Shaanxi [2018PT-28, 2019PT-05]
- National Natural Science Foundation of Shaanxi Province [2020JZ-03]
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Tailoring the composition of graphene used as electrodes for microsupercapacitors is an effective solution to increase the areal energy density of the devices for greater advancement towards miniaturized electronic applications. Herein, we demonstrate a simple method to prepare the nitrogen/oxygen-doped graphene ink for the scalable 3D printed all-solid-state flexible microsupercapacitors. The devices show promising electrochemical performance with high areal energy density of 2.59 mu Wh cm(-2) and power density of 0.23 mW cm(-2), good cycling stability, and excellent mechanical flexibility. The method developed here offers a new avenue for the development of high-performance, all-solid-state flexible microsupercapacitors in a straightforward and scalable process.
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