| 摘要 |
PURPOSE:To obtain an electric double layer capacitor of small variation with time which is excellent in charge and discharge characteristics, by a method wherein polarizable electrodes are arranged on the side of a surface in contact with an inner unit of a surface rear recess of a collecting electrode wherein the outer periphery of an outer unit is insulated, conducting sheets having elasticity are arranged on the other surface side, and the inside of a capacitor is hermetically sealed by pressing the electrodes and the sheets. CONSTITUTION:When a polarizable electrode plate 6, separators 7 and collecting electrodes 5 are contact-bonded and retained on an exposed surface via a packing member 2, the collecting electrodes are not exposed, and the outer periphery is insulated with a packing member. Polarizable electrodes are arranged on a surface rear recess of the collecting electrodes. The exposed polarizable electrode plate surfaces are covered with separator impregnated with electrolyte, and inner units A are stacked and laminated. Outer units B, B' for forming terminal electrode parts, which units are arranged so as to be in contact with the upper and the lower surface of the laminated inner units, are electrically connected with the inner units wherein polarizable electrodes are arranged and laminated on the contact surface side of the surface rear recess of the collecting electrode whose outer periphery is insulated with packing material, and conducting plates 4, 4' having elasticity are arranged on the other surface side, which are constituted so as to be capable of electric conduction to outer terminals. Hence an electric double layer capacitor wherein the inside of the capacitor is pressed by an outer case 9 and hermetically sealed can be formed, by cutting off the connection between the one side outer unit and the outer case. |
