Provided is a capacitor, and more preferably a hybrid capacitor, and a method of making the capacitor. The capacitor comprises an anode, with a dielectric on the anode, and a cathode with a barrier layer on the cathode. A separator, conductive polymer, liquid electrolyte and stabilizer are between the anode and cathode.

An electronic component including a base body including a first end surface and a second end surface opposite to each other in a length direction, a first internal electrode exposed at the first end surface, and a second internal electrode exposed at the second end surface; a first external electrode on the first end surface and connected to the first internal electrode; and a second external electrode on the second end surface and connected to the second internal electrode. The first external electrode includes a resin electrode layer containing a conductive component and a resin component, the resin electrode layer of the first external electrode includes a first portion facing a whole surface of the first end surface of the base body, and a plurality of protrusions are arranged periodically side by side on a surface of the first portion of the resin electrode layer of the first external electrode.

An integrated capacitor that includes a plurality of capacitor elements, each of which has one of first internal electrodes and one of second internal electrodes; an exterior body accommodating the plurality of capacitor elements; a plurality of first external electrode layers on an outer surface of the exterior body and electrically connected to the first internal electrodes; and a plurality of second external electrode layers on the outer surface of the exterior body and electrically connected to the second internal electrodes. One of the first external electrode layers has a projecting portion projecting outward or a recessed portion recessed inward from part of an outer edge of the first external electrode layer in a plan view in a thickness direction of the first external electrode layer.

An electrolytic capacitor includes exterior body and an element stack body including a plurality of capacitor elements. Each of the plurality of capacitor elements includes an anode body, a dielectric layer, and a cathode part covering at least a part of the dielectric layer. The exterior body includes a first principal surface, a second principal surface intersecting the first principal surface, a third principal surface opposite to the first principal surface, and a fourth principal surface opposite to the second principal surface. In at least one first capacitor element among the plurality of capacitor elements, an end surface of an end of the anode body is exposed from the exterior body at least on first principal surface to be electrically connected to a first external electrode. And an end surface of an end of the cathode part is exposed from the exterior body at least on second principal surface to be electrically connected to a second external electrode.

A method for forming a solid electrolytic capacitor that includes an anode containing a valve metal composition, a dielectric overlying the anode, and a solid electrolyte overlying the dielectric is provided. The method comprises forming the dielectric by a process that includes placing the anode into contact with an electrolyte containing an ionic liquid and a valve metal salt and applying a potential difference between the anode and a counter electrode to form a dielectric oxide layer.

Implementations of the present disclosure generally relate to separators, high performance electrochemical devices, such as, batteries and capacitors, including the aforementioned separators, and methods for fabricating the same. In one implementation, a method of forming a separator for a battery is provided. The method comprises exposing a metallic material to be deposited on a surface of an electrode structure positioned in a processing region to an evaporation process. The method further comprises flowing a reactive gas into the processing region. The method further comprises reacting the reactive gas and the evaporated metallic material to deposit a ceramic separator layer on the surface of the electrode structure.

A capacitor and a method for producing a capacitor are disclosed. In an embodiment, a capacitor includes a winding having a cathode foil, an anode foil, separators arranged therebetween and a projection region in which the cathode foil projects beyond the anode foil, wherein, in the projection region, a plurality of layers of the cathode foil are arranged to form a bundle and are directly electrically connected to one another.

A device includes a first substrate, a silicon layer supported by the first substrate, and an active glass layer with a layer including a crystal material with a chemical formula ABX.sub.3 supported by a glass substrate. The active glass layer is stacked on the first substrate such that the layer including the crystal material with a chemical formula ABX.sub.3 and silicon layer are arranged between the first substrate and the glass substrate.

A composition for forming an electroactive coating includes an acid as a polymerization catalyst, at least one functional component, and at least one compound of formula (1) as a monomer: ##STR00001##
wherein X is selected from S, O, Se, Te, PR.sup.2 and NR.sup.2, Y is hydrogen (H) or a precursor of a good leaving group Y.sup.− whose conjugate acid (HY) has a pK.sub.a of less than 45, Z is hydrogen (H), silyl, or a good leaving group whose conjugate acid (HY) has a pK.sub.a of less than 45, b is 0, 1 or 2, each R.sup.1 is a substituent, and the at least one compound of formula (1) includes at least one compound of formula (1) with Z═H and Y≠H.

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 electrolytic solution. The electrolytic solution contains a solvent and a solute. The solvent contains a glycol compound. The solute contains an acid component and a base component. A mass of the acid component in the solute is greater than a mass of the base component in the solute. The acid component contains a first aromatic compound having a hydroxyl group.