Research Summaries

Back Developing a Paradigm for High Energy Density Capacitive Energy Storage

Fiscal Year 2015
Division Research & Sponsored Programs
Department Naval Research Program
Investigator(s) Phillips, Jonathan
Sponsor NPS Naval Research Program (Navy)
Summary First generation super dielectric materials (SDM) discovered in our lab are multi-material mixtures with dielectric constants greater than 10^5, composed of a porous electrically insulating powder filed with a polarizable, ion-containing liquid. This project will focus on optimizing a more practical second generation SDM (TSDM). These are anodic titania nanotube arrays filled with concentrated aqueous salt solutions. In our lab 'early stage' TSDM were formed with dielectric constants greater than 10^7, a maximum operating voltage of >2 volts, and remarkable energy density, greater than 200 J/cm3 of dielectric, This value surpasses the highest previously reported by approximately one order of magnitude. The proposed work is to build a Generation 1 prototype TSDM on the 10 J scale, and study the impact of production parameters on energy density. This will include the identity of the anodized metal, salt, salt concentration, and pore dimensions.
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Publications Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal
Data Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal