Ultraflexible In-Plane Micro-Supercapacitors by Direct Printing of Solution-Processable Electrochemically Exfoliated Graphene

Zhaoyang Liu; Zhong-Shuai Wu; Sheng Yang; Renhao Dong; Xinliang Feng; Klaus Müllen

doi:10.1002/adma.201505304

Ultraflexible In-Plane Micro-Supercapacitors by Direct Printing of Solution-Processable Electrochemically Exfoliated Graphene

Adv Mater. 2016 Mar 16;28(11):2217-22. doi: 10.1002/adma.201505304. Epub 2016 Jan 19.

Authors

Zhaoyang Liu¹, Zhong-Shuai Wu^{1

2}, Sheng Yang¹, Renhao Dong³, Xinliang Feng³, Klaus Müllen¹

Affiliations

¹ Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128, Mainz, Germany.
² Dalian Institute of Chemical Physics, Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian, 116023, China.
³ Department of Chemistry and Food Chemistry and Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062, Dresden, Germany.

PMID: 26784382
DOI: 10.1002/adma.201505304

Abstract

A novel direct printing approach for fabrication of in-plane micro-supercapacitors (MSCs) is demonstrated. Solution-processed graphene/conductive-polymer hybrid inks are utilized. The fabricated MSCs on paper substrates offer significant areal capacitance and excellent rate capability. An ultrathin MSC on a poly(ethylene terephthalate) (PET) substrate (2.5 μm thick) exhibits "ultraflexiblity," making it suitable for next-generation flexible microelectrochemical energy-storage devices.

Keywords: electrochemically exfoliated graphene; energy storage; in-plane; micro-supercapacitors; printing.