An electrolytic capacitor includes a capacitor element, a solid electrolyte layer, an electrolyte solution. The capacitor element has an anode foil with a dielectric layer, and a cathode foil. The solid electrolyte layer is provided between the anode foil and the cathode foil. And the capacitor element is impregnated with the electrolyte solution. The cathode foil includes a covering layer that contains at least one metal selected from titanium and nickel or a compound of the at least one metal. And the solid electrolyte layer contains a conductive polymer, a polymer dopant, and a base component.

An electrolytic capacitor includes a capacitor element, a solid electrolyte layer, and a liquid substance. The capacitor element includes an anode foil with a dielectric layer, and a cathode foil. The solid electrolyte layer is provided between the anode foil and the cathode foil. The capacitor element is impregnated with the liquid substance that includes a solvent and a solute. The solute contains at least one selected from the group consisting of an acid component, a nitro compound, and a phenol compound. The cathode foil includes a covering layer that contains at least one selected from the group consisting of titanium, nickel, a compound including titanium, and a compound including nickel. And the solid electrolyte layer contains a conductive polymer and a base component.

A capacitor, a capacitor package structure, and a method of the manufacturing the capacitor are provided. The capacitor includes a conductive polymer material. The conductive polymer material is made of a solution containing a plurality of conductive polymer particles. A particle size of each of the conductive polymer particles is at least smaller than 30 nm, so that the capacitance decay may less than 10% when the capacitor receives a surge current. In addition, the capacitor package structure includes a conductive polymer material. The conductive polymer material is made of a solution containing a plurality of conductive polymer particles. The particle size of the conductive polymer particle is at least smaller than 30 nm, so that the capacitance decay may less than 10% when the capacitor package receives a surge current.

A solid electrolytic capacitor which exhibits excellent characteristics for high voltage applications of 80 WV or more and a method for manufacturing this solid electrolytic capacitor are provided. This solid electrolytic capacitor includes a capacitor element 10 which is obtained by winding an anode foil 1 and a cathode foil 2, with a separator 3 interposed therebetween, the capacitor element 10 includes a solid electrolyte layer, and a void part in the capacitor element 10 is filled with an electrolyte solution, the electrolyte solution contains an ammonium salt of an aliphatic carboxylic acid as a solute and a polyhydric alcohol as a solvent, and the addition amount of the acid serving as the solute relative to the solvent is 0.6 mol/kg or less.

An electrolytic capacitor includes an anode body having a dielectric layer; a solid electrolyte layer in contact with the dielectric layer of the anode body; and an electrolyte solution. The solid electrolyte layer includes a -conjugated conductive polymer. The electrolyte solution contains a solvent and a solute, and the solvent contains a glycol compound and a sulfone compound. A proportion of the glycol compound contained in the solvent is 10% by mass or more. A proportion of the sulfone compound contained in the solvent is 30% by mass or more. A total proportion of the glycol compound and the sulfone compound contained in the solvent is 70% by mass or more.

The purpose of the present invention is to provide an electrochemical element that can withstand prolonged use, with little damage or degradation due to the pressure of hydrogen gas generated, even when used for prolonged periods of time. This electrochemical element is equipped with a hydrogen-releasing film and has a laminated body in which an anode and a cathode are laminated with a separator interposed therebetween. The hydrogen-releasing film contains a metal layer, the separator contains pulp, and the total sulfur component content in the separator is 400 ppm or less as determined by quartz tube combustion gas absorption ion chromatography.

An electrolytic capacitor includes a capacitor element and an electrolyte solution. The capacitor element includes an anode foil, a cathode foil that is opposite to the anode foil, and a conductive polymer layer that is disposed between the anode foil and the cathode foil. An inorganic layer including at least one selected from the group consisting of conductive carbon, titanium, and nickel is disposed on the cathode foil. The conductive polymer layer includes a conductive polymer. A proportion of water in the electrolyte solution ranges from 0.1% by mass to 6.0% by mass, inclusive.

A power storage device has a power storage element and an electrolytic solution. The power storage element includes an anode body, a cathode body opposed to the anode body, and a separator interposed between the anode body and the cathode body. The separator includes a separator base material and a conductive polymer deposited on the separator base material. The power storage element is impregnated with the electrolytic solution. The separator has a first surface layer, which includes a first surface opposed to the anode body, and a second surface layer, which includes a second surface opposed to the cathode body. An amount of the conductive polymer deposited in a first separator half body, which is a part from a center of the separator to the first surface, is greater than an amount of the conductive polymer deposited in a second separator half body, which is a part from the center of the separator to the second surface.

The instant disclosure provides a polymer composite material, the method for manufacturing the polymer composite material, a capacitor package structure using the polymer composite material and the method for manufacturing the capacitor package structure. The polymer composite material is used for the cathode of a capacitor, wherein the polymer composite material includes poly(3,4-ethylenedioxythiophene), polystyrene sulfonate and a nanomaterial. Polystyrene sulfonate is connected between the nanomaterial and poly(3,4-ethylenedioxythiophene), and polystyrene sulfonate is bonded to the poly(3,4-ethylenedioxythiophene) through a polymerization process. The content of the nanomaterial ranges from 0.01-1.5 wt. % based on the weight of the polymer composite material.

A hybrid polymer aluminum electrolytic capacitor and a method for manufacturing a capacitor are disclosed. In an embodiment a capacitor includes a first winding element having an anode foil, separators and a cathode foil which are wound around an axis and which are covered by a conductive polymer, wherein the first winding element includes a liquid electrolyte and a second winding element having an anode foil, separators and a cathode foil which are wound around an axis and which are covered by a conductive polymer, wherein the second winding element includes a liquid electrolyte, wherein each winding element has a height of more than 12 mm, wherein the first and second winding elements are arranged in a common can, wherein each winding element includes a tab connected to a respective anode foil and a tab connected to a respective cathode foil, wherein the tabs connected to the anode foils are connected to each other and the tabs connected to the cathode foils are connected to each other such that the first and second winding elements are electrically connected parallel to each other, and wherein the capacitor is a hybrid polymer aluminum electrolytic capacitor.