| 20110260695 | RELIABLE EXTENDED USE OF A CAPACITOR FOR BACKUP POWER - A capacitor device and associated method having a housing made of a material that is folded to form a cavity sized to contain an electrolyte and electrode package. The material has a substrate and a film attached to the substrate. Respective portions of the film that are folded against each other are fused together to form a first seal that in cooperation with a folded edge of the material seals the cavity. The capacitor also has a second seal attached to the housing and to the first seal that seals the cavity. | 10-27-2011 |