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Nonlinear Dielectric Materials and Processing for High-Energy-Density Capacitors

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-11-M-5123
Agency Tracking Number: F103-158-2340
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: AF103-158
Solicitation Number: 2010.3
Solicitation Year: 2010
Award Year: 2011
Award Start Date (Proposal Award Date): 2011-01-11
Award End Date (Contract End Date): N/A
Small Business Information
200 Innovation Blvd. Suite 237
State College, PA -
United States
DUNS: 784136116
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Shihai Zhang
 Director of Engineering
 (814) 238-7400
Business Contact
 Mary Carns
Title: Contract Specialist
Phone: (814) 238-7400
Research Institution

We propose to develop polymer capacitor film with antiferroelectric behavior by combining a high dielectric constant polymer with antiferroelectric ceramic particles. Special processing techniques will be developed to achieve 3-D structure to enhance the dielectric performance and the dielectric breakdown strength. The novel nonlinear polymer nanodielectric materials will show a significantly higher dielectric constant at and above the critical switching electric field, which may lead to dramatically improved energy density as observed in ceramic antiferroelectric materials. The high risk of this unconventional approach is well justified by the potential superior performance of the antiferroelectric film capacitor technology. Similar to polypropylene capacitors, the novel capacitor will also have graceful failure feature and can be produced into large size capacitor bank that stores mega joules energy. The advanced hybrid capacitor film will have energy density above 4 J/cc and dissipation factor lower than 1%, lifetime above 100,000 charge-discharge cycles at 100 pps repetition rate. BENEFIT: There are numerous applications that will benefit from the antiferroelectric film capacitors with high energy density, low dielectric loss, and graceful failure characteristic. These capacitors can be used in the powder system conditioning electronics in the all electric structures developed by the Navy and the Air Force, DC link capacitors for next generation hybrid or plug-in electric vehicles, power electronics in down hole oil/gas exploration, pulse-forming networks (PFNs) for the conversion of prime electrical energy into the necessary short pulses of energy needed to energize loads such as high power microwave, directed energy, kinetic energy weapons, and high power microwave. The Army is developing future vehicles which require compact electrical power systems. The Navy is developing the all-electric ship in which the power requirements of future Naval vessels will not be as dominated by propulsion as current ships and it may be desirable to be able to transfer energy between uses. The Air Force is developing all-electric aircrafts. This will require storage and conditioning of vast amounts of power. Compact, high-energy-density, pulse-power capacitors will be the enabling technology for all future weapon systems that the DoD plans to pursue. In addition, these advanced capacitor film can also be used for implantable cardiac defibrillators, external defibrillators, and capacitor bank for hybrid electric vehicles.

* Information listed above is at the time of submission. *

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