NOVELTY - The apparatus has a metal current collection terminal member (2) and a current collecting plate (3) fused with two electrodes of an electrical storage element (1). A sealing member (6) is placed between a side surface of a connecting terminal member (4) and an opening part of an exterior case (7) for sealing the opening part. An element support case (5) is insulated between a bottom face (7a) of the exterior case and the current collection terminal member and biased toward the bottom face of the case when the sealing member is biased inside from an outer peripheral surface of the case.    USE - Electrical storage apparatus i.e. electrical double layer capacitor, for backup power supply of electronic devices, a hybrid vehicle and a fuel-cell vehicle. Can also be used as lithium ion capacitor.    ADVANTAGE - The current collection terminal member is bonded to the element support case by pressure from the pair of edge parts of the electrical storage element, so that welding reliability of the electrical storage element with metallic member can be realized and position of the electrical storage element can be fixed in the exterior case without welding, thus reducing frequency of welding required for producing the apparatus, and hence improving reliability at time of manufacture of the apparatus. The electrical storage element has one flexible end so as to suppress axis deviation at the time of fixing other end of the electrical storage element, thus suppressing unnecessary tensile stress in a joining interface of the edge part of the electrical storage element and the current collecting plate and suppressing defect such as fracture in the edge part of the electrical storage element and the junction part of the current collecting plate, and hence attaining reliability improvement and suppression of resistance increase.    DETAILED DESCRIPTION - The electrical storage element is a collector. The current collection terminal member is multi-stage metallic member. The sealing member is an annular insulation member. The exterior case is a metal bottomed cylindrical case.    DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of an electrical double layer capacitor. '(Drawing includes non-English language text)'    Electrical storage element (1)    Metal current collection terminal member (2)    Current collecting plate (3)    Connecting terminal member (4)    Element support case (5)    Sealing member (6)    Exterior case (7)    Bottom face (7a)