US Patent 9875856 Capacitor

An aspect of a capacitor comprises an exterior package case housing an electrolyte along with a capacitor element, a sealing plate where an external terminal is disposed, the sealing plate sealing the exterior package case, a current collecting plate disposed between an electrode protruding portion formed on an element end surface of the capacitor element and the external terminal, a gas releasing mechanism disposed in the sealing plate to release a gas in the exterior package case, and a blocking mechanism disposed on at least one of the sealing plate and the current collecting plate to block the electrolyte from the gas releasing mechanism.