An electrical storage device, such as a capacitor, which includes a high surface area material such as zeolite as a substrate, a suitable dielectric layer proximate to the substrate, and necessary electrically conductive layers. The substrate is non-planar and has a rigid, sponge-like internal structure...http://www.google.es/patents/US7251118?utm_source=gb-gplus-sharePatente US7251118 - Method and apparatus for large scale storage of electrical potential
Method and apparatus for large scale storage of electrical potential
