A carrier includes first and second container portions that are assembled together to provide a structure the supports and retains a capacitor. The first container portion and the second container portion are assembled together in a configuration in which the edges of the first wall structures face corresponding ones of the edges of the second wall structures, and the edges of the first wall structures are overlapping with respect to the corresponding ones of the edges of the second wall structures when the carrier is viewed in side view.

Provided in a power storage module including: a plurality of power storage devices; and a first current collector that holds the plurality of power storage devices. The plurality of power storage devices each include a case having an opening, an electrode assembly including a first electrode and a second electrode housed in the case, and a sealing member that seals the opening. The case includes a tubular part including one end provided with the opening, and a bottom that closes the other end of the tubular part. The case is electrically connected to the first electrode. The first current collector has a plurality of first through-holes that set and position the corresponding one of the plurality of electric storage devices, and the plurality of first through-holes each have a periphery electrically connected to the case. This structure enables improving energy density of the power storage module.

A capacitor module is provided with a case with a bottom surface and an opening, a first capacitor group including first capacitors each having first and second electrodes, and a side surface connecting the first and second electrodes, a second capacitor group including second capacitors each having third and fourth electrodes, and a side surface connecting the third and fourth electrodes, a first bus bar having an electrode contact portion in contact with the first electrode, a second bus bar having an electrode contact portion in contact with the third electrode, a third bus bar having an electrode contact portion commonly in contact with the second electrode and the fourth electrode, a sealing resin filled in the case; and an insulating member provided between the electrode contact portion of the first bus bar and the electrode contact portion of the second bus bar and surrounded by the sealing resin.

A capacitor module is provided with a case with a bottom surface and an opening, a first capacitor group including first capacitors each having first and second electrodes, and a side surface connecting the first and second electrodes, a second capacitor group including second capacitors each having third and fourth electrodes, and a side surface connecting the third and fourth electrodes, a first bus bar having an electrode contact portion in contact with the first electrode, a second bus bar having an electrode contact portion in contact with the third electrode, a third bus bar having an electrode contact portion commonly in contact with the second electrode and the fourth electrode, a sealing resin filled in the case; and an insulating member provided between the electrode contact portion of the first bus bar and the electrode contact portion of the second bus bar and surrounded by the sealing resin.

The present disclosure relates to a metal case capacitor that includes: a capacitor module (10) including a capacitor device, a first busbar (1) electrically connected with a thermally-sprayed surface of the capacitor device and having a first lead terminal (1a) on an exposed side, a second busbar (2) electrically connected with the other thermally-sprayed surface of the capacitor device and having a second lead terminal (2a) on an exposed side, and an insulating sheet disposed between the first busbar (1) and the second busbar (2); a metallic external case (20) having a space; a plastic insulating member positioned between the capacitor module (10) and the metallic external case (20) and insulating the capacitor module (10) and the metallic external case (20) from each other; and a filler permeating in a gel or liquid state into a space between the capacitor module (10) and the metallic external case (20).

The present disclosure relates to a metal case capacitor that includes: a capacitor module (10) including a capacitor device, a first busbar (1) electrically connected with a thermally-sprayed surface of the capacitor device and having a first lead terminal (1a) on an exposed side, a second busbar (2) electrically connected with the other thermally-sprayed surface of the capacitor device and having a second lead terminal (2a) on an exposed side, and an insulating sheet disposed between the first busbar (1) and the second busbar (2); a metallic external case (20) having a space; a plastic insulating member positioned between the capacitor module (10) and the metallic external case (20) and insulating the capacitor module (10) and the metallic external case (20) from each other; and a filler permeating in a gel or liquid state into a space between the capacitor module (10) and the metallic external case (20).

The insulating plate has a swelling protruding in a first direction that is a direction a first plate portion toward a second plate portion. The swelling is formed integral with the insulating plate. The first plate portion has a first fitting part protruding in the first direction and formed integral with this plate portion. The first fitting part is fitted, in the first direction, onto one surface side of the swelling of the insulating plate. The second plate portion has a second fitting part protruding in the first direction and formed integral with this plate portion. The second fitting part is fitted, in a second direction opposite to the first direction, onto the other surface side of the swelling.

The insulating plate has a swelling protruding in a first direction that is a direction a first plate portion toward a second plate portion. The swelling is formed integral with the insulating plate. The first plate portion has a first fitting part protruding in the first direction and formed integral with this plate portion. The first fitting part is fitted, in the first direction, onto one surface side of the swelling of the insulating plate. The second plate portion has a second fitting part protruding in the first direction and formed integral with this plate portion. The second fitting part is fitted, in a second direction opposite to the first direction, onto the other surface side of the swelling.

A chip part is provided that includes a substrate in which an element region and an electrode region are set, an insulating film (a first insulating film and a second insulating film) which is formed on the substrate and which selectively includes an internal concave/convex structure in the electrode region on a surface, a first connection electrode and a second connection electrode which include, at a bottom portion, an anchor portion entering the concave portion of the internal concave/convex structure and which include an external concave/convex structure on a surface on the opposite side and a circuit element which is disposed in the element region and which is electrically connected to the first connection electrode and the second connection electrode.

A chip part is provided that includes a substrate in which an element region and an electrode region are set, an insulating film (a first insulating film and a second insulating film) which is formed on the substrate and which selectively includes an internal concave/convex structure in the electrode region on a surface, a first connection electrode and a second connection electrode which include, at a bottom portion, an anchor portion entering the concave portion of the internal concave/convex structure and which include an external concave/convex structure on a surface on the opposite side and a circuit element which is disposed in the element region and which is electrically connected to the first connection electrode and the second connection electrode.