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3D printed hybrid-dimensional electrodes for flexible micro-supercapacitors with superior electrochemical behaviours.
- Source :
-
Virtual & Physical Prototyping . 2020 Supplement, Vol. 15, p511-519. 9p. - Publication Year :
- 2020
-
Abstract
- Micro-supercapacitors (MSCs) with excellent electrochemical behaviours and flexibility possess great promise for portable and wearable electronic devices. A novel type of hybrid-dimensional Fe2O3/graphene/Ag ink is developed and extruded into MSC electrodes through the direct ink writing-based three-dimensional (3D) printing. The optimal solid-state MSC device exhibits a maximum areal capacitance of 412.3 mF cm−2 at 2 mA cm−2, a correspondingly high energy density of 65.4 μWh cm−2 and 89% capacitance retention for over 5000 charge and discharge cycles. The superior electrochemical performance is profited by the high electron transport synergistically boosted by two-dimensional graphene nanosheets and one-dimensional Ag nanowires, and the high pseudocapacitive behaviours of Fe2O3 nanoparticles. The 3D printed MSC exhibits reliable flexibility with remarkable retention of 90.2% of its original capacitance after 500 bending cycles. The current 3D printing fabrication demonstrates an efficient route for advanced miniaturised electrochemical energy storage. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17452759
- Volume :
- 15
- Database :
- Academic Search Index
- Journal :
- Virtual & Physical Prototyping
- Publication Type :
- Academic Journal
- Accession number :
- 147524224
- Full Text :
- https://doi.org/10.1080/17452759.2020.1842619