A solid electrolytic capacitor that includes a resin molding, a first external electrode, and a second external electrode. The resin molding includes a laminate of multiple capacitor elements, and a sealing resin sealing the laminate. The following are satisfied: t.sub.1<t.sub.2, t.sub.3<t.sub.4, t.sub.1<t.sub.3, and t.sub.4/t.sub.3<t.sub.2/t.sub.1, where t.sub.1 is the thickness of an inner portion of the cathode lead-out layer, the inner portion not being exposed at the second end surface; t.sub.2 is the thickness of an exposed portion of the cathode lead-out layer, the exposed portion being exposed at the second end surface; t.sub.3 is the thickness of an inner portion of the valve-action metal substrate, the inner portion not being exposed at the first end surface; and t.sub.4 is the thickness of an exposed portion of the valve-action metal substrate, the exposed portion being exposed at the first end surface.

A solid electrolytic capacitor that includes a resin molding, a first external electrode, and a second external electrode. The resin molding includes a laminate of multiple capacitor elements, and a sealing resin sealing the laminate. The following are satisfied: t.sub.1<t.sub.2, t.sub.3<t.sub.4, t.sub.1<t.sub.3, and t.sub.4/t.sub.3<t.sub.2/t.sub.1, where t.sub.1 is the thickness of an inner portion of the cathode lead-out layer, the inner portion not being exposed at the second end surface; t.sub.2 is the thickness of an exposed portion of the cathode lead-out layer, the exposed portion being exposed at the second end surface; t.sub.3 is the thickness of an inner portion of the valve-action metal substrate, the inner portion not being exposed at the first end surface; and t.sub.4 is the thickness of an exposed portion of the valve-action metal substrate, the exposed portion being exposed at the first end surface.

A capacitor is provided that includes a capacitor stack including an anode layer, cathode layer, and electrolytic layer electrically coupled together, the capacitor stack including a capacitor stack periphery. The capacitor also includes a first cover portion having a first cover portion periphery that aligns with the capacitor stack periphery, and a second cover portion having a second cover portion periphery that aligns with the capacitor stack periphery and received the first cover portion periphery to form a shell body for encasing the capacitor stack therein. The capacitor stack is isolated from the second cover portion to provide a neutrally charged second cover portion that is electrically coupled within an implanted medical device.

A module containing a plurality of active capacitors and a sacrificial capacitor is provided. The active capacitors and sacrificial capacitor are aligned along a horizontal direction so that the side surfaces of their cases are parallel to each other. The particular arrangement of the active capacitors and sacrificial capacitor results in a module configuration where the anode terminations for the active capacitors and an external component of the lead frame for the sacrificial capacitor are coplanar so that the module can be mounted to a circuit board via the anode terminations and the external component of the lead frame in a mechanically and electrically stable manner. Further, the center of gravity of the module in the length and/or width directions can be located at a midpoint of the overall module length and/or width, which enhances the stability of the module when mounted to a circuit board.

A module containing a plurality of active capacitors and a sacrificial capacitor is provided. The active capacitors and sacrificial capacitor are aligned along a horizontal direction so that the side surfaces of their cases are parallel to each other. The particular arrangement of the active capacitors and sacrificial capacitor results in a module configuration where the anode terminations for the active capacitors and an external component of the lead frame for the sacrificial capacitor are coplanar so that the module can be mounted to a circuit board via the anode terminations and the external component of the lead frame in a mechanically and electrically stable manner. Further, the center of gravity of the module in the length and/or width directions can be located at a midpoint of the overall module length and/or width, which enhances the stability of the module when mounted to a circuit board.

One subject of the invention is an isolating device (10) for electrically isolating a plurality of power-storage assemblies (102) placed side-by-side in a power-storage module (100) from one another, the device comprising a sheet (11) made of an electrically insulating material lying in a main plane (P), the device also comprising at least one tongue (12A-12E; 14A-14E, 16A-16E, 18A-18D, 20A, 20D, 22A-22D) integral with the sheet (11) and capable of protruding from the main plane (P) of the sheet by extending essentially perpendicularly to said main plane of the sheet. Another subject of the invention is a module comprising at least one of these devices.

One subject of the invention is an isolating device (10) for electrically isolating a plurality of power-storage assemblies (102) placed side-by-side in a power-storage module (100) from one another, the device comprising a sheet (11) made of an electrically insulating material lying in a main plane (P), the device also comprising at least one tongue (12A-12E; 14A-14E, 16A-16E, 18A-18D, 20A, 20D, 22A-22D) integral with the sheet (11) and capable of protruding from the main plane (P) of the sheet by extending essentially perpendicularly to said main plane of the sheet. Another subject of the invention is a module comprising at least one of these devices.

A capacitor assembly that is stable under extreme conditions is provided. A capacitor assembly that is capable of achieving a high capacitance and yet remain thermally and mechanically stable under extreme conditions. Even at high capacitance values, good mechanical stability can be achieved by connecting multiple individual capacitor elements to the housing of the assembly. Without intending to be limited by theory, it is believed that the use of multiple elements increases the surface area over which the elements are connected to the housing. Among other things, this allows the elements to dissipate vibrational forces incurred during use over a larger area, which reduces the likelihood of delamination. The capacitor elements are also enclosed and hermetically sealed within a single housing in the presence of a gaseous atmosphere that contains an inert gas, thereby limiting the amount of oxygen and moisture supplied to the solid electrolyte of the capacitor elements. Through the combination of the features noted above, the capacitor assembly is able to better function under extreme conditions.

A capacitor assembly that is stable under extreme conditions is provided. A capacitor assembly that is capable of achieving a high capacitance and yet remain thermally and mechanically stable under extreme conditions. Even at high capacitance values, good mechanical stability can be achieved by connecting multiple individual capacitor elements to the housing of the assembly. Without intending to be limited by theory, it is believed that the use of multiple elements increases the surface area over which the elements are connected to the housing. Among other things, this allows the elements to dissipate vibrational forces incurred during use over a larger area, which reduces the likelihood of delamination. The capacitor elements are also enclosed and hermetically sealed within a single housing in the presence of a gaseous atmosphere that contains an inert gas, thereby limiting the amount of oxygen and moisture supplied to the solid electrolyte of the capacitor elements. Through the combination of the features noted above, the capacitor assembly is able to better function under extreme conditions.

An electricity storage module includes: an electricity storage element group formed by aligning multiple electricity storage elements; detection wires that have end portions on one side connected to the electricity storage elements and detect the states of the electricity storage elements; a detection wire connector that is connected to other end portions on a side opposite to that of the end portions on the one side of the detection wires that are connected to the electricity storage elements; a device connector that electrically connects the detection wires and an external device by fitting into the detection wire connector; and a cover that covers a surface on a side on which the detection wires of the electricity storage element group are disposed. The cover is provided with a fixing hole that fixes the detection wire connector and the device connector in a state of being fit together.