A 3D-printed stretchable structural supercapacitor with active stretchability/flexibility and remarkable volumetric capacitance

Abstract

<p>3D-printed stretchable negative Poisson's ratio structural CoNi₂S₄/NiCo-LDHs-based supercapacitor with active stretchability/flexibility and remarkable volumetric capacitance are built.</p>

Three‐dimensional printing of high‐mass loading electrodes for energy storage applications

“…Reproduced with permission. 119 Copyright 2020, The Royal Society of Chemistry. D, Schematic diagram of preparing the interdigitated supercapacitors.…”

“…By using the SLA, Chang et al developed a 3D multicellular structure with negative Poisson's ratio as the framework to load active materials for capacitive energy storage. 119 Then, an electrophoretic deposition was jointly used to produce a 3D CoNi 2 S 4 /NiCo-LDHs electrode (Figure 8(B)). The asobtained 3D-printed networks offer a step-shaped structure rendering a large specific surface area and abundant growth sites, which allow a high-mass loading (Figure 8(C)).…”

Review on Conductive Polymer/CNTs Nanocomposites Based Flexible and Stretchable Strain and Pressure Sensors

“…Furthermore, the already proven potential of using conductive polymer/CNT filaments to 3D-print parts could revolutionize the way sensing components are made by pushing forward the boundaries of current possibilities. As some recent works have suggested, applications for 3D printing technology using composites can be implemented for printing flexible tactile sensors as smart skin [ 109 ], components for sensitive platforms for explosives detection [ 110 ], printing of highly customized 3D structures for energy storage devices [ 111 ] and wearable energy storage [ 112 ] which represents a leap forward in wearable technology. In similar direction but implementing a different method of printing, Chavez et al [ 113 ] reported that photopolymerizable nanocomposites made of commercially available photopolymers (e.g., Genesis) filled with MWCNT dispersions can be used for tunning the electrical and mechanical properties of 3D printed components in a commercial 3D printer (Form1+; Formlabs Inc., Somerville, MA, USA) by externally applying customized electric fields during the printing process.…”

Recent Development of Flexible and Stretchable Supercapacitors Using Transition Metal Compounds as Electrode Materials

“…g2: Reproduced with permission. [ 65 ] Copyright 2020, Royal Society of Chemistry. g3: Reproduced with permission.…”

“…[ 58,60,69–72 ] Stretchable 2D planar electrodes or SCs can be prepared by depositing active materials on a prestrained stretchable substrate like elastomers or stainless‐steel mesh to obtain wavy structured electrodes. [ 73–77 ] Stretchable 3D structured SCs can be achieved by using kirigami/origami methods, [ 78–80 ] 3D printing technology, [ 65,81 ] or 3D textiles. [ 64,82 ] Elastic polymers such as polyurethane (PU), [ 83 ] polydimethylsiloxane (PDMS), [ 84,85 ] and silicone rubber (Ecoflex) [ 69,86 ] are used as stretchable substrates owing to their good stretchability, tensile recovery, and transparency.…”