A capacitor (2) includes a capacitor main body (4), a base (6), and a resin layer (8-1). The capacitor main body includes an outer package case (10), an opening sealing member (14) attached to an opening of the outer package case, and a terminal lead (16-1, 16-2) extending through the opening sealing member. The base is disposed toward the opening sealing member of the capacitor main body and includes an insertion through hole (18-1, 18-2) into which the terminal lead is inserted to be exposed on a mounting surface side, and a protruding portion (20) surrounding the insertion through hole. The resin layer is arranged at least between the base and the opening sealing member. The base and the resin layer are in contact with or spaced apart from each other without at least partly adhering to each other.

A capacitor (2) includes a capacitor main body (4), a base (6), and a resin layer (8-1). The capacitor main body includes an outer package case (10), an opening sealing member (14) attached to an opening of the outer package case, and a terminal lead (16-1, 16-2) extending through the opening sealing member. The base is disposed toward the opening sealing member of the capacitor main body and includes an insertion through hole (18-1, 18-2) into which the terminal lead is inserted to be exposed on a mounting surface side, and a protruding portion (20) surrounding the insertion through hole. The resin layer is arranged at least between the base and the opening sealing member. The base and the resin layer are in contact with or spaced apart from each other without at least partly adhering to each other.

An energy storage device is provided with a case including a lid body in which a gas release valve is formed. The gas release valve includes a thin wall with a thickness smaller than a thickness of a portion adjacent to the gas release valve. The thin wall includes an intermediate portion and two lateral portions that are arranged at positions sandwiching the intermediate portion in a first direction. As viewed from a normal direction to the lid body, the intermediate portion is disposed at the middle position in the first direction of the lid body and is formed with a width, in a second direction orthogonal to the first direction, smaller than those of the two lateral portions.

A rechargeable battery is provided with a pressure release valve and a current interruption mechanism. The current interruption mechanism includes a deformation plate. When the internal pressure of the case reaches an interruption activation pressure, the deformation plate receives the internal pressure and is deformed to break a conducting portion. In the current interruption mechanism, a pressure that is set for maintaining the sealing at the contact portion between the deformation plate and a negative electrode conductor is defined as a sealing portion withstanding pressure, and the pressure that is set for maintaining the shape of the case is defined as a case withstanding pressure. The pressure for activating the pressure release valve is defined as a valve activation pressure. In this case, the sealing portion withstanding pressure and the valve activation pressure are set higher than the interruption activation pressure and lower than the case withstanding pressure.

A capacitor is provided with a case having a receptacle with an expandable section that allows the receptacle to extend axially when internal pressure builds within the case as a result of a fault. Terminals are mounted on the cover and electrically connected to the electrodes of a capacitor element through an interrupter plate, via leads. The plate is attached to the section of the case that extends under pressure, whereby the plate is drawn away from the cover, thereby breaking the electrical connections to the terminal. The plate may also work in conjunction with a cover that expands outward in response to internal pressure, to provide a second pressure interrupter mechanism.

The present invention relates to a string lamp. The string lamp includes a bulb, a lamp holder, a hollow connecting base and a capacitor embedded in the connecting base in a separable mode. A lower part of the bulb is contained in the lamp holder. At least two lamp pins extend out from wire holes formed in the lower part of the lamp holder. The inner side wall of the connecting base is provided with at least two separately arranged conductive pieces, and the conductive pieces are electrically contacted with the corresponding lamp pins. The capacitor is arranged below the lamp holder, and connecting pins of the capacitor are electrically contacted with the corresponding conductive pieces as well. The string lamp of the present invention is compact in structure, and the capacitor and the lamp holder are convenient to maintain and replace.

A sealing body closes an opening of an energy storage device including an exterior can having the opening. The sealing body includes a metal plate, a gas discharging valve that is integrally formed with the metal plate and that opens when the inner pressure of the energy storage device increases to a predetermined pressure, and a ceramic layer that is disposed on a surface of the metal plate, the surface being an inner surface of the energy storage device, and that is disposed around the gas discharging valve.

The present disclosure generally relates to a venting system that includes a wall of a lid or a container, the lid or container defining a central longitudinal axis, and a line segment that is measured from the longitudinal axis to an outermost surface of the lid or container, and a pressure relief feature that is disposed along the lid or container. The pressure relief feature includes a thinned region of the lid or container that defines a minimum thickness that is less than 40% of a maximum thickness of the respective lid or container. The pressure relief feature extends at least 180 degrees about the longitudinal axis, and the pressure relief feature is located at a distance from the longitudinal axis of more than 80% of the line segment.

An energy storage apparatus includes an outer case, and an energy storage device housed in an inside of the outer case. The outer case includes a ventilation chamber which makes the inside and an outside of the outer case communicate with each other. The ventilation chamber includes a front wall in which a through hole communicating with the outside is formed, a back wall disposed at a position where the back wall opposedly faces the front wall, a first wall disposed between the through hole and the back wall, and a first side wall disposed in an extending manner along a first direction which intersects with the front wall with a gap formed between the first side wall and the first wall. The gap is formed over a distance from the front wall to the back wall along the first direction.

An energy storage apparatus includes an outer case, and an energy storage device housed in an inside of the outer case. The outer case includes a ventilation chamber which makes the inside and an outside of the outer case communicate with each other. The ventilation chamber includes a front wall in which a through hole communicating with the outside is formed, a back wall disposed at a position where the back wall opposedly faces the front wall, a first wall disposed between the through hole and the back wall, and a first side wall disposed in an extending manner along a first direction which intersects with the front wall with a gap formed between the first side wall and the first wall. The gap is formed over a distance from the front wall to the back wall along the first direction.