High energy density discharge capacitors

An extensive evaluation of available dielectric materials was undertaken as part of a development program sponsored by the U.S. Army Electronic Command. The best dielectric system for light weight, high energy density, discharge capacitors was determined to be metallized, coated polyethylene pterapthalate. As a result, the following improved energy storage capacitors were developed. 2500 volt capacitors which are smaller and lighter in weight by a factor of two-to-one over existing designs. Capacitors in the 1000 volt to 1500 volt range, not previously possible with high energy densities.