Process for the production of a layer composition

Patent metadata

Field	Value
Publication number	US-12400799-B2
Application number	US-202118251339-A
Country	US
Kind code	B2
Filing date	Oct 27, 2021
Priority date	Nov 6, 2020
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

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.

First claim

The invention claimed is:

1. 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 layer on at least a part 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 selected from the group consisting of a flavanonol, a flavanone and a mixture thereof.

2. The process according to claim 1 , wherein in process step b) the electrically conductive polymer layer is formed in situ on the substrate surface.

3. The process according to claim 1 , wherein after application of the liquid stabilizer phase in process step b2) the solvent or dispersant is at least partly removed in a further process step b3).

4. The process according to claim 1 , wherein the stabilizer is a flavanone.

5. The process according to claim 4 , wherein the stabilizer is Naringenin.

6. The process according to claim 1 , wherein the substrate comprises an electrolyte body of an electrode material, and a dielectric at least partly covers a surface of this electrode material.

7. The process according to claim 1 , wherein the electrically conductive polymer comprises a polythiophene.

8. A layer composition, obtainable by the process according to claim 1 .

9. A layer composition, comprising
S1. a substrate with a substrate surface;
S2. a stabilized electrically conductive polymer layer following the substrate surface, wherein the stabilized electrically conductive polymer layer comprises:
S2a. an electrically conductive polymer layer following the substrate surface and comprising an electrically conductive polymer;
S2b. a stabilizer layer following the electrically conductive polymer layer and comprising at least one stabilizer, wherein the at least one stabilizer is a flavonoid selected from the group consisting of a flavanonol, a flavanone and a mixture thereof.

10. The layer composition according to claim 9 , wherein the stabilizer is a flavanone.

11. The layer composition according to claim 10 , wherein the stabilizer is Naringenin.

12. The layer composition according to claim 9 , wherein the electrically conductive polymer comprises polythiophene.

Assignees

• Heraeus Deutschland Gmbh & Co Kg
• Heraeus Epurio Gmbh

Inventors

• Intelmann Matthias
• Merker Udo

Classifications

• H01G9/15

  Solid electrolytic capacitors (H01G11/00 takes precedence) · CPC title

• H01G9/0036 Primary

  Formation of the solid electrolyte layer · CPC title

• H01G9/0425

  specially adapted for cathode · CPC title

• H01G9/028 Primary

  Organic semiconducting electrolytes, e.g. TCNQ · CPC title