supercapacitors – TechConnect Briefs

Production of Supercapacitor Carbon Electrodes from Corn-stover Via Facile Thermal Activation

Shell K.M., Maddipudi B.K., Amar V., Thakkar A., Shende R.V., Kumar S., Gupta R.B., Virginia Commonwealth University, US

Use of biomass is an emerging and promising alternative to produce carbon electrodes for supercapacitors. Lignin-rich unhydrolyzed solids (UHS) obtained from alkaline pretreatment and enzymatic hydrolysis of corn stover were valorized into biochar via hydrothermally [...]

Graphene-Metal Oxide based Nanocomposites for Supercapacitor Applications

Selvakumar D., Nagaraju P., Jayavel R., Anna University, IN

Two dimensional graphene-based nanocomposites have been synthesized through the modified Hummer’s method and chemical reduction process. Transition metal oxides were decorated on the graphene sheets by in-situ hydrothermal method. The composites were formed with graphene [...]

Synthesis and characterization of (polypyrrole/carbon) nanotubes/metal oxide composites for application as supercapacitors

de Oliveira A.H.P., de Oliveira H.P., de Oliveira A.H.P., de Oliveira H.P., UNIVASF, BR

The development of eco-friendly technologies such as hybrid vehicles requires more efficient high power energy storage materials, viz. supercapacitors. As reported in our previous work, the association of polypyrrole and carbon derivatives (modified graphene oxide [...]

Synthesis and characterization of (polypyrrole/carbon) nanotubes/metal oxide composites for application as supercapacitors

de Oliveira A.H.P., de Oliveira H.P., de Oliveira A.H.P., de Oliveira H.P., UNIVASF, BR

The development of eco-friendly technologies such as hybrid vehicles requires more efficient high power energy storage materials, viz. supercapacitors. As reported in our previous work, the association of polypyrrole and carbon derivatives (modified graphene oxide [...]

Pseudocapacitive random and aligned nano-porous electrode materials for supercapacitors

Saruhan B., Gönüllü Y., Arndt B., German Aerospace Center, DE

Commercial electric double layer capacitors store energy in an electric field. This is caused by charged particles arranged on two electrodes consisting mostly of carbon, in the form of a double layer. Such double layer [...]

Pseudocapacitive random and aligned nano-porous electrode materials for supercapacitors

Saruhan B., Gönüllü Y., Arndt B., German Aerospace Center, DE

Commercial electric double layer capacitors store energy in an electric field. This is caused by charged particles arranged on two electrodes consisting mostly of carbon, in the form of a double layer. Such double layer [...]

Carbon-based nanocomposite EDLC supercapacitors

Lei C., Lekakou C., University of Surrey, UK

Supercapacitors are electric devices with power and energy densities between those of a traditional capacitor and battery. As the demand for energy storage devices with high power and long durability increases, the supercapacitor becomes more [...]

Nano-Engineered Dielectrics for Energy Storage Solutions

Badi N., Bensaoula A., University of Houston, US

We present a novel laser processing technique to produce nanodielectric films, which are based on polymer coated metal nanoparticles. The polymer-coated Au NP composite was spin-coated onto a nickel foil serving as the bottom electrode [...]

Multifunctional Electrodes Based on MWNTs Sheets and Yarns

Carretero-González J., dela Cruz M.E., Fang S., Ferraris J.P., Baughman R.H., The University of Texas at Dallas, US

Solid-state fabricated carbon MWNTs sheets and yarns exhibit very high electrochemically accessible surface area, which combine with their high electronic conductivity and useful mechanical properties to make these materials attractive candidates for supercapacitor and artificial [...]

Use of Reticle Carbon in Supercapacitors

Nesbitt C.C., Reticle, Inc., US

Supercapacitance is an increasingly growing area of interest for a number of electric, and electronic applications. Storing energy that is readily recovered can extend the life or improve the efficiency of chemical batteries, rapid-pulse batteries [...]