Patent ID: 7090706

Claim:
A method of making a double layer capacitor comprising: coupling a first current collector foil to an internal portion of a first terminal; folding a first electrode over the current collector foil wherein the first electrode comprises carbon; placing a porpus separator against the first electrode; juxtaposing a second electrode against the porous separator wherein the second electrode comprises carbon; coupling electrically the second electrode to a case; saturating the first electrode and the second electrode with an electrolyte solution; sealing hermetically the case; and selecting a material for said first terminal having a coefficient of thermal expansion substantially similar to a coefficient of thermal expansion of glass, wherein the electrolyte is substantially contained within the case, and wherein influx of impurities into the electrolyte solution is substantially impaired, wherein said sealing hermetically comprises forming a glass-to-metal seal between the case and the first terminal, and wherein said selecting comprises selecting molybdenum.