Laminated electric double layer capacitor module

A laminated electric double layer capacitor module comprising:

• electrode assemblies for positive and negative electrodes disposed to face each other, each comprising a metal current collector foil and an electrode layer made of a large surface area material, formed on at least one surface of the foil except for an end strip portion along one side end of the foil;
• an ion permeable separator disposed between the adjacent electrode assemblies to separate the respective electrode layers from each other;
• a metal current collector plate for positive electrodes and a metal current collector plate for negative electrodes, electrically connected to the end strip portion of each electrode assembly for positive electrode and the end strip portion of each electrode assembly for negative electrode, respectively;
• an electrolyte;
• and
• a module case;
• wherein:
• a) the electrode assemblies for positive and negative electrodes are alternately laminated in plurality so that the respective end strip portions are projected from the separators on opposite sides, to form a laminated element;
• b) the metal current collector plate for positive electrodes, is disposed at the end of the laminated element on the side where the end strip portions of the metal current collector foils for positive electrodes are projected from the separators;
• c) the metal current collector plate for negative electrodes, is disposed at the end of the laminated element on the side where the end strip portions of the metal current collector foils for negative electrodes are projected from the separators;
• d) the electrode assemblies, the separators, the current collector plate for positive electrodes and the current collector plate for negative electrodes, are integrated to constitute a laminated element assembly;
• e) a plurality of such laminated element assemblies are provided, and each of them is accommodated and protected in one of element compartments formed in plurality in the module case;
• and
• f) the plurality of the laminated element assemblies accommodated in the plurality of the element compartments, respectively, are electrically connected in series.