supercapacitor – Page 2 – TechConnect Briefs

Vertically Aligned Graphene sheets Based Coatings as Nano-micro-structured Electrodes for Enhanced Performance of Supercapacitors

Jang G.G., Keum J.K., Song B., Li L., Hensley D.K., Jiang Y., Hunt A., Moon K-S, Wong C.P., Hu M.Z., Hunt A., Oak Ridge National Laboratory, US

This work develops a molecular engineering approach to control the interspacing of graphene sheets and then an external field approach to induce the re-orientation of the graphene sheets during the deposition process to form a [...]

Degradation Mechanisms in Electric Double Layer Capacitors Subjected to Voltage and Temperature Stress Testing

Peter A.S., Azarian M.H., Pecht M., University of Maryland, US

Due to their high power densities, electric double layer capacitors ¬¬(EDLCs) are used to supplement high energy density power sources (such as lithium ion batteries and fuel cells) in applications such as automotive kinetic energy [...]

Architecturing Carbon Nanotube-based Flexible Solid State Supercapacitor

Adu K, Ma D., Radall C., Rajagopalan R., Armstrong P., Stigers S., The Pennsylvania State University, US

We report a novel post synthesis self-assembly technique that transforms the trillion of carbon nanotubes into a robust, flexible and binder-free membrane and demonstrate its application in designing flexible bipolar solid state supercapacitor with high [...]

Architecturing Carbon Nanotube-based Flexible Solid State Supercapacitor

Adu K, Ma D., Radall C., Rajagopalan R., Armstrong P., Stigers S., The Pennsylvania State University, US

We report a novel post synthesis self-assembly technique that transforms the trillion of carbon nanotubes into a robust, flexible and binder-free membrane and demonstrate its application in designing flexible bipolar solid state supercapacitor with high [...]

High Performance Supercapacitors Based on Thermal Reduced Graphene Oxide

Perego D., Franz S., Bestetti M., Borioli C., Politecnico di Milano, IT

THERMALLY REDUCED GRAPHENE OXIDE BASED SUPERCAPACITORS HAVE BEEN FABRICATED AND TESTED. ELECTRODES BASED ON METAL SUBSTRATE (TI, AISI304, NI, AL) WERE FABRICATED BY EITHER BY ELECTROPHORESIS AND SPRAY COATING OF GRAPHENE OXIDE SOLUTIONS. ELECTROCHEMICAL TEST [...]

High Performance Supercapacitors Based on Thermal Reduced Graphene Oxide

Perego D., Franz S., Bestetti M., Borioli C., Politecnico di Milano, IT

THERMALLY REDUCED GRAPHENE OXIDE BASED SUPERCAPACITORS HAVE BEEN FABRICATED AND TESTED. ELECTRODES BASED ON METAL SUBSTRATE (TI, AISI304, NI, AL) WERE FABRICATED BY EITHER BY ELECTROPHORESIS AND SPRAY COATING OF GRAPHENE OXIDE SOLUTIONS. ELECTROCHEMICAL TEST [...]

Fabrication and Characterization of 3-D Graphene-CNT Architectures Towards Supercapacitor Applications

Kim Y-S, Kumar K., Li X., Fisher F.T., Yang E.H., Stevens Institute of Technology, US

This work describes the first steps towards fabrication and characterization of a novel hybrid nanostructure comprised of carbon nanotubes (CNTs) grown out-of-plane from graphene layers for supercapacitor applications. Graphene is a promising material for supercapacitors, [...]

High Energy Density Supercapacitor Based on a Hybrid Carbon Nanotube – Reduced Graphite Oxide Architecture

Bekyarova E., Ramesh P., Jha N., Itkis M.E., Haddon R.C., Carbon Solutions Inc, US

We report a high energy supercapacitor device that utilizes hybrid carbon electrodes and the ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF¬4) as an electrolyte. The hybrid electrodes were prepared from reduced graphite oxide (rGO) and purified single [...]

High Energy Density Supercapacitor Based on a Hybrid Carbon Nanotube – Reduced Graphite Oxide Architecture

Bekyarova E., Ramesh P., Jha N., Itkis M.E., Haddon R.C., Carbon Solutions Inc, US

We report a high energy supercapacitor device that utilizes hybrid carbon electrodes and the ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF¬4) as an electrolyte. The hybrid electrodes were prepared from reduced graphite oxide (rGO) and purified single [...]

Electrospun Carbon nanofibers-Based Supercapacitors

Zhou Z.P., North Dakota State University, US

For efficient use of conductive polymers, such as Polyaniline (PANI) and Polypyrrole (PPy), in pseudocapacitors and other electrochemical applications, the poor conductivity of the conductive polymers is a major problem. To solve the problem, here [...]