Mini Review of Reliable Fabrication of Electrode under Stretching for Supercapacitor Application

Abstract

Currently, there is an increasing demand for portable and wearable electronics. This has necessitated the development of stretchable energy storage devices, while simultaneously maintaining performance. Hence, the electrodes and electrolyte materials used in stretchable supercapacitors should be robust under severe mechanical deformation. Polymers are widely used in the fabrication of stretchable supercapacitors. It is not only crucial to choose good polymer candidates with inherent advantages, but it is also important to design suitable polymer materials for both electrodes and electrolytes. This mini-review explains the concept of stretchable supercapacitors, the theoretical background of polymer-based electrodes for supercapacitors, and the fabrication strategies of stretchable electrodes for supercapacitors. Finally, we present the drawbacks and areas that still need to be developed.

Electro-Mechanical Response of Stretchable PDMS Composites With a Hybrid Filler System

“…Stretchable electronics have attracted much attention for futuristic devices such as wearable health care sensors [1][2][3], energy harvesting or storage systems [4][5][6][7], and data processing devices [8,9]. A key component of developing a stretchable electronic device is a stretchable conductor that is mechanically reliable under repeated tensile or compressive deformation [10].…”

Electrochemically Deposited MoS2 and MnS Multilayers on Nickel Substrates in Inverse Opal Structure as Supercapacitor Microelectrodes

“…Supercapacitors or electrochemical capacitors store electric charges through the unique separation of ions and charges at the microelectrode interface and form an electric double layer where the charges are separated. The electric double layer is also called electric double-layer capacitors (EDLCs), which are then divided into two categories, namely, electric double-layer capacitors and Faraday capacitors or pseudocapacitors (pseudocapacitance capacitors; PCs) according to the difference in the charge storage mechanisms [ 9 , 10 , 11 , 12 ]. The active material undergoes chemical reactions, mainly charge transfer storage, and pseudocapacitors tend to use transition metal oxides, sulfides, or conductive polymers as microelectrodes, and the charge storage mechanism is based on a mainly fast redox reaction but applies its electrochemical characteristics.…”