Journal
ADVANCED ENERGY MATERIALS
Volume 13, Issue 9, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.202203683
Keywords
3D printed micro-supercapacitors; direct-ink-write 3D printing; MXene nanosheets; PEDOT-based inks; thickness-independent capacitance
Ask authors/readers for more resources
A direct ink writing 3D printing approach was used to prepare all-printed flexible micro-supercapacitors using rationally designed PEDOT:PSS/MXene composite gels as inks. The MXene nanosheets in the printable inks can enhance the printability of PEDOT:PSS solution and modulate the electronic structures of PEDOT:PSS during a structure transition. The resulting 3D printed micro-supercapacitors and integrated devices exhibit large capacitances, excellent rate performance, and high cycling stability even under exceptional deformations and low temperatures.
3D printing is gaining prospects thanks to the ease of manufacturing energy storage devices with programmable geometry at the macro- and microscales. Herein, a direct ink writing 3D printing approach for preparing all-printed flexible micro-supercapacitors is demonstrated using rationally designed poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)/MXene composite gels as inks without the tedious processes and toxic organic additives. Among the printable inks, the homogeneously distributed MXene nanosheets can boost the printability of PEDOT:PSS solution and also regulate the interconnected electronic structures of the PEDOT:PSS undergoing a micellar to linear structure transition. The resulting 3D printed micro-supercapacitors and integrated devices can deliver exceptionally large areal capacitances, remarkable rate performance, and high cycling stability with thickness-independent capacitances even under exceptional deformations and low temperatures. This study thus provides a simple yet environmental-friendly approach for preparing the conducting-polymer-based inks for 3D printing of customized, multiscale, and integrated energy devices.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available