Patent ID: 6411491
Filing Date: 2002-06-25
Classification: H01G

Abstract:
A capacitive energy storage device for use at cryogenic temperatures comprising at least first and second electrode layers having a layer of dielectric material there between, said electrode layers comprising an electrically conductive material selected such that it is capable of functioning as a superconductor at temperatures in the range of about 50 K to about 90 K, and said dielectric material is a combination of materials having the formulas of (Sr1âˆ’aBaa)TiO3(z), where a is a value between about 0 and about 0.5, and (Pb1âˆ’bNib)3MgNb2O9(1âˆ’z), where b is a value between about 0 and about 1, and z is a mole percentage value between about 5 and about 50.