Pseudocapacitance electrode and asymmetric supercapacitor based on biomass juglone/activated carbon composites

OPTIMIZATION OF CARBON NANOTUBE SUPERCAPACITOR ELECTRODE By

Multifunctional structural supercapacitor composites based on carbon aerogel modified high performance carbon fiber fabric.

A novel multifunctional material has been designed to provide excellent mechanical properties while possessing a high electrochemical surface area suitable for electrochemical energy storage: structural carbon fiber fabrics are embedded in a continuous network of carbon aerogel (CAG) to form a coherent but porous monolith. The CAG-modification process was found to be scalable and to be compatib...

Multiscale modeling of carbon nanotube growth on a supercapacitor electrode

Vertically Aligned Carbon Nanotube (VACNT) – based electrochemical double layer capacitors, called “supercapacitors” are intermediate systems that can potentially bridge the power/energy gap between traditional dielectric capacitors (high power) and batteries (high power density). However, their future is uncertain because of technical stumbling block in their fabrication related to the post-gr...

Superior asymmetric supercapacitor based on Ni-Co oxide nanosheets and carbon nanorods

Nickel and cobalt (Ni-Co) binary oxide nanosheets with mesoporous structure are prepared by a facile approach based on the formation and disassociation of nickel/cobalt-citrate complex, and they show an ultra-high Faradaic capacitance up to 1846 F g(-1) and excellent rate capability. On this basic, advanced aqueous asymmetric supercapacitors (AASs) are successfully built by using the Ni-Co oxid...

Carbon Nanotubes Supported Conducting Polymer Electrode for Supercapacitor

Supercapacitors (SCs) as portable systems and electric vehicles have aroused great interest due to their high power in short term. The composite materials of carbon nanotubes and conducting polymers have been considered for SC electrodes. Carbon nanotubes (CNTs), due to their outstanding electric properties and nanoscale texture, such as large specific area, low cost, and cycle stability, exhib...