Abstract
We present the feasibility study of nonlinear dielectrics for the energy storage applications. Corona deposition of electric charges to the surface of thin films of highly polarizable organic molecules (dielectrophores) shows that the electric field inside the dielectric has a highly nonlinear response. The stored energy densities are superior to the polypropylene films, measured for the comparison, and at least comparable to the current electrochemical batteries. These results make us believe that the dielectrophores-based electrostatic capacitors can revolutionize the energy storage market.
Highlights
Efficient energy storage is important both for everyday operations and for the long-term sustainability of human civilization
We present the feasibility study of nonlinear dielectrics for the energy storage applications
We examine thin films based on three dielectrophores shown in Figure 3, as we believe that they are promising for high specific energy capacitors
Summary
Efficient energy storage is important both for everyday operations and for the long-term sustainability of human civilization. Electrochemical storage units, such as batteries, have large energy density but small power density and, can degrade relatively fast. Electrostatic storage units, such as capacitors, have the advantages over the batteries in almost all areas but have much smaller energy density [1]. We outlined the requirements and design rules for dielectric materials which should be implemented in prospective electrostatic capacitors [2]. The molecular unit (dielectrophore) must contain three main components: a polarizable subunit having large field induced electric dipole, an isolating subunit which prevents current leakage, and a structural ele-
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