Heraeus Precious Metals Gmbh & Co. Kg

H.c. Starck Gmbh

Heraeus Deutschland Gmbh & Co Kg

Aculon Inc.

Heraeus Epurio LLC

H.c. Starck Clevios Gmbh

Udo Merker

Klaus Wussow

Katrin Asteman

Matthias Intelmann

Knud Reuter

Wilfried Lövenich

Friedrich Jonas

Akio Ishikawa

Andreas Elschner

Stephan Kirchmeyer

Armin Sautter

Harald Kraus

Eric L Bruner

Udo Guntermann

Wilfried Loevenich

Arnulf Scheel

Klaus Lerch

Detlef Gaiser

Ralf Tillmann

Ralph Tillmann

Yayoi Miyazaki

Armin Saulter

A process for the production of a layer composition, comprising the process steps: a) provision of a substrate with a substrate surface; b) formation of a stabilized electrically conductive polymer layer on at least a pail of the substrate surface, the formation of the stabilized electrically conductive polymer layer comprising the process steps: b1) formation of an electrically conductive polymer layer comprising an electrically conductive polymer on at least a part of the substrate surface; b2) application of a liquid stabilizer phase, comprising at least one stabilizer and at least one solvent or dispersant, onto the electrically conductive polymer layer obtained in process step b1) for the formation of a stabilizer layer, wherein the at least one stabilizer is a flavonoid. The present invention also relates to a layer composition and to the use of a layer composition.

Process for the production of a layer composition

The present invention relates to a capacitor comprising i) an electrode body comprising an electrode material, wherein a dielectric layer comprising a dielectric material at least partially covers a surface of the electrode body; ii) a solid electrolyte layer comprising a solid electrolyte material that at least partially covers a surface of the dielectric layer, wherein the solid electrolyte material comprises a conductive polymer; iii) an anode contact that is in contact with the electrode body and that comprises copper, metal-plated copper or a copper-containing alloy; and iv) a cathode contact that is in contact with the solid electrolyte layer; wherein the capacitor further comprises at least one metal ion migration inhibitor. The present invention also relates to a process for the production of a capacitor, to a capacitor obtainable by such a process, to electronic circuit comprising the capacitor according to present invention and to the use of these capacitors in electronic circuits.

Solid electrolytic capacitor with conductive polymer layer attaining excellent metal ion migration resistance

The present invention relates to a process for the production of a layer composition () with an electrically conductive layer (), comprising the process steps:

Layer compositions with improved electrical parameters comprising PEDOT/PSS and a stabilizer

The present invention relates to a process for producing a liquid composition comprising a functionalized &#x3c0;-conjugated polythiophenes, comprising the process steps of i) providing a liquid phase comprising a) thiophene monomers of the general formula (I) wherein X,Y are identical or different and are O, S, or NR, wherein Ris hydrogen or an aliphatic or aromatic residue having 1 to 18 carbon atoms; A is organic residue carrying an anionic functional group; b) an oxidizing agent; and c) a solvent; ii) oxidatively polymerizing the thiophene monomers of the general formula (I) to obtain a liquid composition comprising functionalized &#x3c0;-conjugated polythiophenes; wherein (&#x3b1;1) the pH of the liquid phase provided in process step i) is adjusted to a value below 7.0, wherein the pH is determined at a temperature of 20&#xb0; C.; and (&#x3b1;2) the chloride content of the liquid phase provided in process step i) is less than 10000 ppm, based on the total weight of the liquid phase. The present invention also relates to the liquid composition obtainable by this process, to a liquid composition comprising a functionalized &#x3c0;-conjugated polythiophene, wherein the com-position is characterized by a certain ratio of mass average molecular weight Mand the molar average molecular weight Mof the functionalized &#x3c0;-conjugated polythiophene, to a liquid composition comprising a functionalized &#x3c0;-conjugated polythiophene, wherein the functionalized &#x3c0;-conjugated polythiophene comprises different repeating units in a defined amount, to a process for the preparation of such a liquid composition, to a process for the preparation of a capacitor in which these liquid compositions are used for the formation of the solid electrolyte, to a capacitor obtainable by this process and to the use of the liquid compositions for the preparation of a conductive layer.

Process for producing functionalized polythiophenes

The present invention relates to a process for producing an electrolytic capacitor wherein&#x2014;a primer solution e) is applied to a capacitor body (), followed by an application of a solution or dispersion a) comprising a conjugated polymer b) and a solvent or dispersant d), followed by an at least partial removal of the solvent or dispersant d) for the formation of a polymeric outer layer () that is formed onto the capacitor body (), and wherein the primer solution e) comprises at least one monofunctional amine and at least one carboxylic acid.

Monofunctional amines as adhesion primers for conductive polymers

The present invention relates to a process for the production of a layer composition () with an electrically conductive layer (), comprising the process steps: a) provision of a substrate () with a substrate surface (); b) formation of a polymer layer () comprising an electrically conductive polymer () on at least a part of the substrate surface (); c) application of a liquid stabilizer phase, comprising a stabilizer and a liquid phase, to the polymer layer () from process step b), wherein the stabilizer phase comprises less than 0.2 wt. %, based on the stabilizer phase, of the electrically conductive polymer, wherein the stabilizer is an aromatic compound with at least two OH groups, and a layer composition () and uses thereof.

The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current for high nominal voltages, electrolyte capacitors produced by this process and the use of such electrolyte capacitors.

Process for the production of electrolyte capacitors of high nominal voltage

Described are methods for the production of a capacitor, comprising the process steps:

Use of mixtures of self-doped and foreign-doped conductive polymers in a capacitor

Described is a process for the production of a capacitor, where an electrode body () of an electrode material () is provided, wherein a dielectric () covers one surface () of this electrode material () at least partly to form an anode body (), where the in situ polymerization of at least one thiophene monomer in at least a part of the anode body () in the presence of at least one oxidizing agent and at least one polymer with the structural formula (I).RO&#x2014;RO&#x2014;R&#x2003;&#x2003;(I)

Addition of polymers to thiophene monomers in the in situ polymerization

The invention is relates to a method for manufacturing a capacitor. The method has the following steps:

Method for improving electrical parameters in capacitors comprising PEDOT/PSS as a solid electrolyte through a polyalkylene glycol

Capacitors comprising a dielectric at least partly covering the surface of an electrode material and forming an anode body are described. The anode body may be at least partly coated with a solid electrolyte comprising a conductive polymer. The capacitor comprises at least one polyglycerol, where the ratio of the amount of polyglycerol (M) to the amount of conductive polymer (M) in the capacitor is M/M&#x3e;0.15, and the polyglycerol contains more than 50 wt. % of a mixture of tri- and tetraglycerol, based on the total weight of the polyglycerol. Processes for the production of a capacitor, an electronic circuit and use of a capacitor in a dispersion are also described.

Method for improving the electrical parameters in capacitors containing PEDOT/PSS as a solid electrolyte by polyglycerol

The invention relates to a method for producing electrolytic capacitors with low equivalent series resistance and low residual current, consisting of a solid electrolyte and an intermediate layer and an outer layer comprising conductive polymers, to electrolytic capacitors produced using this method and also to the use of electrolytic capacitors of this type.

Methods for producing electrolytic capacitors having a polymeric intermediate layer, capacitors produced thereby and uses thereof

The invention relates to a process for producing electrolytic capacitors with low equivalent series resistance, low residual current and high thermal stability, which consist of a solid electrolyte and an outer layer comprising conjugated polymers, to electrolytic capacitors produced by this process and to the use of such electrolylic capacitors.

Process for producing electrolytic capacitors with a polymeric outer layer

The invention relates to a process for producing electrolytic capacitors with low equivalent series resistance, low residual current and high thermal stability, which consist of a solid electrolyte and an outer layer comprising conjugated polymers, to electrolytic capacitors produced by this process and to the use of such electrolytic capacitors.

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Kö'ln, Germany

Udo Merker