Developing a Paradigm for High Energy Density Capacitive Energy Storage
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First generation super dielectric materials (SDMs), discovered in our lab, are multi-material mixtures with dielectric constants greater than 105, composed of a porous electrically insulating powders filled with a polarizable, ion-containing liquid. This project is focused 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’ TSDM (prior to project initiation) were formed with dielectric constants greater than 107, a maximum operating voltage of greater than 2 volts and remarkable energy density, greater than 200 J/cm3 of dielectric, a value that surpasses the highest previously reported for dielectric based capacitors by approximately one order of magnitude.
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Jenkins, Natalie; Petty, Clayton; Phillips, Jonathan (2016-02-20);A constant current charge/discharge protocol which showed fumed silica filled to the point of incipient wetness with aqueous NaCl solution to have dielectric constants >10 ⁸ over the full range of dielectric thicknesses ...
Cortes, Francisco Javier Quintero; Phillips, Jonathan (The Minerals, Metals & Materials Society (outside the USA), 2015);To test a theory of the recently discovered phenomenon of super dielectric behavior at very low frequency, the dielectric constants of several ‘pastes’, composed of porous alumina powders filled to the point of incipient ...
Phillips, Jonathan; Fromille, Samuel Salvadore, IV (The United States of America as represented by the Secretary of the Navy, Washington, DC (US), 2018-08-28);A capacitor having first and second electrodes and a scaffold dielectric. The scaffold dielectric comprises an insulating material with a plurality of longitudinal channels extending across the dielectric and filled ...