Affiliation:
1. Electro‐Materials Research Laboratory Centre for Nanoscience and Technology Pondicherry University Pondicherry 605014 India
2. School of Advanced Materials Science and Engineering Sungkyunkwan University Seobu‐ro 2066 Jangan‐gu Suwon‐si Gyeonggi‐do 16419 Republic of Korea
3. Department of Physics and Astronomy College of Science King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
Abstract
AbstractThe push towards reducing the size of portable/wearable electronics, wireless sensors, and the Internet of Things (IoT's) needs a critical requirement of miniaturized energy storage solutions. Typically, micro‐supercapacitors (MSC's) are the main key factors of electrochemical energy storage systems for those miniaturized device applications. Herein, a scalable screen printable flexible microsupercapcitor with highly flexible architecture is developed using a Prussian blue derived 3D‐penroseite (Ni,Co)Se2 nanocubes as the positive electrode and Ti3C2Tx MXene as the negative electrode. As a result, the printed flexible device delivers an enhanced active electrochemical site and a high areal capacitance of 63 mF cm−2 with a broad working potential range of 1.0 V. Furthermore, the (Ni,Co)Se2 || Ti3C2Tx based flexible MSC (FMSC) offers a remarkable energy density of 8.75 µWh cm−2 at a power density of 0.5 mW cm−2, making it an excellent microscale energy storage system for small, portable, and wireless applications.
Subject
Industrial and Manufacturing Engineering,Mechanics of Materials,General Materials Science