supercapacitor – TechConnect Briefs

Novel Graphene Supercapacitor Structure Design for UAV Power Storage

Kim J., Rivas A., Wu S., Martinez V., Terroza K., Karthikeyan D., Contreras F., Castro J., Botello E., Pandit R., Dobbs S., Yu Z., California State Polytechnic University, Pomona, US

Supercapacitors are getting significant attention in recent years due to their quick charge/discharge capabilities, long cycle lives and are environmentally friendly. Supercapacitors can provide necessary power in short bursts. Aiming to reduce the weight and [...]

Storage Synthesis of Power Systems via Dynamic Meta-control Schema

Kohn W., Zabinsky Z.B., Crowdpoint Technologies, US

Electric vehicles are usually driven by induction or DC motors. They are provided with dynamic braking and acceleration: during braking, the motor becomes a generator driven by the wheels; and during acceleration, the motor requires [...]

HTL Derived Biochar for Supercapacitor Electrodes

Huynh K., Maddipudi B.K., Amar V.S., Houck J.D., Shende R.V., South Dakota School of Mines and Technology, US

In this study, biochar samples were prepared by conversion of biomass feedstock (corn stover) via catalytic hydrothermal liquefaction (HTL) and later used as electrode material in conjunction with sol-gel derived perovskite based mixed (Mn,Ti)-oxides (Mn:Ti [...]

Using Robotics to Assemble Graphene Supercapacitor

Wu C., Wu S., Kim J., Magluyan D., Kawamoto-Kindred D., Zhou Y.H., Cao N., Zhao H., Kuang Z., Kidd T., Wu C., Wu S., Dobbs S., California State Polytechnic University, Pomona, US

Robotics is a field that seeks to use more precise and accurate mechanical manipulation to improve the speed, efficiency, and safety of certain tasks where human actions would be more of a liability than a [...]

Fabrication of a Lower Weight, All 3D Printed Graphene Supercapacitor

Yu Z., Dobbs S., Anderson K., Sun P., Zhu B., Nair A., Wu S., California State Polytechnic University, Pomona, US

Graphene is under intensive study for energy storage devices, such as batteries and supercapacitors, due to its energy density and ability to recharge. These properties make graphene well suited for electric powered UAVs with the [...]

Cobalt Doped (Mn,Ti)- Oxides for Supercapacitors

Houck J.D., Amar V.S., Shende R.V., South Dakota School of Mines and Technology, US

In this investigation, a (Mn,Ti)-oxide (Mn:Ti 65:35 wt%) was prepared using surfactant templating assisted sol-gel method. To prepare this nanocomposite, sol-A with Ti precursor and sol-B containing Mn precursor were separately prepared using the required [...]

Scalable Fabrication of All-Solid-State Supercapacitor Using Laser-Scribed Graphene

Liu J., Liu W., Liu J., Liu W., Zhengzhou University, Zhengzhou , Henan , China, CN

With the rapid growth of energy needs and depletion fossil fuels, more concerns have been given to energy storage for renewable wind, wave and solar power, etc.[1]. The development of reliable and cost-effective energy storage [...]

Graphene Functionalized Mesoporous Mn and Ti Oxides for Supercapacitors

Houck J., Amar V., Shende A., Shende R., Shende A., Shende R., South Dakota School of Mines and Technology, US

In this investigation, several mesoporous nanocomposites such as TiO2/MnO2, TiO2/Mn2O3, TiO2/MnO2/Mn2O3 and TiO2/MnO2/Mn2O3/MnTiO3 were synthesized using the pluronic 123 templating assisted sol-gel method. To prepare these nanocomposites, sol-A with Ti precursor and sol-B containing Mn [...]

Printable and High Performance MnO2-based Energy Storage Devices

Qian J., Lau S.P., The Hong Kong Polytechnic University, HK

Printable electronics is of great interest in the areas ranging from thin film transistors (TFTs), energy storage devices, solar cells to micro electro-mechanical systems (MEMS). To date, preparations of various inks composed of semiconductors, biological [...]

Nitrogen-modified biomass-derived porous carbon for electric double layer capacitors application

Wang K., Gu Z., Fan Q., South Dakota State University, US

This work shows that N-doped carbon can be derived from pyrrole modified biomass-lignin. Simultaneous chemical and physical activation using potassium hydroxide during the heat treatment can effectively create porous N-doped carbon. The activated carbon possesses [...]