Patent ID: 8233267
Filing Date: 2012-07-31
Classification: H01G,Y02E,Y02T

Abstract:
1. A capacitor comprising: an element produced in a way in which a pair of positive and negative electrodes having a polarizable electrode layer formed on a collector, except on one end thereof, made of metal foil, are stacked in a reverse direction to each other, and the pair of positive and negative electrodes are rolled up with a separator interposed therebetween, which causes an unformed part of the polarizable electrode layer on each of the positive and negative electrodes to be exposed on each end face facing the other to form a pair of electrode extraction parts; a bottomed, cylindrical metal case containing the element together with a driving electrolyte, and with one electrode of the element joined to a joint part convexly provided on an inner bottom surface of the metal case; a terminal plate with an other electrode of the element joined to a joint part convexly provided on an inner surface of the terminal plate, sealing an opening of the metal case, wherein S