Papers – Page 9 – TechConnect Briefs

Composite Electrode for High Performance Ultracapacitors and Batteries

Brambilla N., Rich D., Park K., Ndiritu S., Nanoramic Laboratories, US

The standard electrodes used in today’s energy storage devices contain a passive organic or polymeric binder. This material affects various electrochemical performance characteristics of an electrode and lowers power density, energy density, and reliability of [...]

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 [...]

Systematic Characterization and Evaluation of Grid-connected Flow Battery Systems

Taube B., Johnson R., McQuilling A., Leufkens P., Hamzavy B., Southern Research, US

This paper provides an overview of flow technologies and how the ESRC’s research and test center of excellence supports the evaluation and validation of various grid-scale flow battery technologies, with systematic characterization and evaluation including: [...]

Dielectric properties of SiO2/PMMA nanocomposites for energy storage

Jobin M., hepia / HES-SO University of Applied Sciences of Western Switzerland, CH

We have made a SiO2:PMMA hybrid nanocomposite based on 150nm spherical silica nanoparticles synthetized by sol-gel method. A molecule containing a methacrylate group (TPM), was chemically grafted to the silica surface to improve the electrical [...]

Quasi-Electrostatic Simulation of Energy Density Limits and Variability in Nanoparticle Composite Materials

Costello B., Davis J.A., Georgia Institute of Technology, US

To understand the limits and opportunities of nanoparti- cle (NP) composite materials, it is imperative to better un- derstand the heterogeneous electric field distributions within such materials. Using a custom-built simulator, the electric field is [...]

Additive Manufacturing of 3D Face Masks for Biometric Spoofing

Christie L., Mancuso K., Fedorishin D., Schneider P., Stone A., Oh K., University at Buffalo, US

Biometric security systems such as Apple’s FaceID have replaced passwords for mobile device security, leav- ing users susceptible to biometric spoofing attacks. In response, Apple has implemented an anti-spoofing scheme, looking for autonomous ocular movement [...]

Exploring Process-Properties Relationships of 3D-Printed PLA: Towards Process- Informed Simulation and Design

Grant A., Ellis B.D., Rais-Rohani M., Hajiha R., University of Maine, US

The simulation of additively manufactured (AM) Polylactic Acid (PLA) tensile specimen is discussed. The procedure of evolution and use of a material definition for finite element simulation (FEA) of Polylactic Acid (PLA) printing is discussed, [...]

Design and Manufacture of a Functional 3D-Printed Stirling Engine: A Case Study Involving Bound Metal Deposition of 17-4 PH

Campbell Q., Filiault M., Rooney K., Belding J., Ellis B.D., University of Maine, US

Bound metal deposition (BMD) is a recently commercialized additive manufacturing of metal (AMM) process in which metal powder-binder composites are printed, debound, and sintered. Although potentially offering significant costs savings compared to traditional AMM process, [...]

A Multiscale Modeling Suite for Part Qualification in Metal Additive Manufacturing

Liu J., Liu Z., Jalalahmadi B., Liu J., Liu Z., McReynolds M., Rios J., Sentient Science, US

Metal Additive Manufacturing (AM) shows great potential for producing light-weight structures, reducing development cost and lead time in critical industies such as aerospace and medical device. However, a major barrier that remains is rapid qualification [...]