Laser fabrication of all-solid-state microsupercapacitors with ultrahigh energy and power based on hierarchical pore carbon

A Quasi 2D Flexible Micro‐Supercapacitor Based on MnO2//NiCo2O4 as a Miniaturized Energy‐Storage Device

“…Many research groups have proposed the use of carbonaceous materials (CNTs, GO, and activated carbon (AC)) for on‐chip micro‐supercapacitors. For instance, GO‐based micro‐supercapacitors have been developed by using different printing techniques, including screen‐printing, ink‐jet printing, and direct laser writing . However, these techniques normally require a rigid template and the jettable precursor ink leads to a cumbrous manufacturing step that lowers the yield efficiency.…”

“…In general, nanostructured materials including metal oxides, [7] graphene oxide (GO), [8][9][10] and carbon nanotubes (CNTs) [11] have been utilized as electrode materials for micro-supercapacitors.M any research groups have proposed the use of carbonaceous materials (CNTs, GO,a nd activated carbon (AC)) for on-chip micro-supercapacitors.F or instance,G O-based micro-supercapacitors have been developed by using different printing techniques,i ncluding screenprinting, [12] ink-jet printing, [13] and direct laser writing. [14,15] However, these techniques normally require ar igid template and the jettable precursor ink leads to ac umbrous manufacturing step that lowers the yield efficiency.T hese processes also confinet he output performance (power density) due to the narrowv oltage range (less than one) and have limited use for the future large-scale devices.T herefore,f urther researcho nt he fabrication of microscale devices via cost-effective processing is important. Researchers have demonstrated metal oxides as ap romising electrodem aterial for energy storage applications due to its advantages of low cost, low toxicity,a nd ease of synthesis.T he nanomaterial-patterned growth can control the surface microstructure and dimensionality of the device.T he possibility of controlling the microstructural features using the solution-basede lectrodeposition method has been recognized as an importanta nd viable Aminiaturized and flexible asymmetric micro-supercapacitor (ASC) based on surface-modified MnO 2 @Aua nd thin nanosheets of NiCo 2 O 4 @Au( termed 2D-qMnO 2 //NiCo 2 O 4 microsupercapacitor) is reported.…”

A Highly Durable, Transferable, and Substrate‐Versatile High‐Performance All‐Polymer Micro‐Supercapacitor with Plug‐and‐Play Function

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The ever-growing demands of portable and wearable electronic devices require continuous development in highly compact and/or flexible energy storage. Therefore, extensive investigation on micro-supercapacitors (μSCs) based on a number of printing, [2,3] lithography, [4][5][6][7][8] and laser (and/or ion) assisted methods [9][10][11][12][13] have been carried out. [1] On the other hand, the microfabrication technology opens up the possibilities for fabrication of microenergy-storage-devices with planar interdigitated structure.

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Fabrication and Engineering of Nanostructured Supercapacitor Electrodes Using Electromagnetic Field‐Based Techniques

“…EPD is a process that colloidal particles suspended in a liquid medium migrate under the influence of an electric field and can be deposited onto an electrode. With increased attention both in academia and industrial sectors, EPD is widely used in the preparation of supercapacitor electrodes because of the cost‐effectiveness and the requirement of simple apparatus . In addition, the coating prepared from EPD has a strong adherence to the substrate, together with high density and excellent homogeneity .…”