# US 10,504,658 B2 · Conductive material formulation and use thereof

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- Number: US 10,504,658 B2
- Document ID: US10504658B2
- Status: Granted
- Kind: B2
- Application number: 15/879,875
- Filed: 2018-01-25
- Published: 2018-05-31
- Granted: 2019-12-10
- Earliest claimed: 2013-05-20
- Assignees: Eternal Material Co., Ltd.
- Applicants: Eternal Materials Co., Ltd.
- Inventors: Shinn-Horng Chen
- Web page: https://patentgrep.com/patent/US10504658B2

## CPC

- H01G 9/028: Organic semiconducting electrolytes, e.g. TCNQ
- H01G 9/0036: {Formation of the solid electrolyte layer}
- H01G 9/025: Solid electrolytes (H01G11/54 takes precedence)
- H01G 9/032: Inorganic semiconducting electrolytes, e.g. MnO2
- H01G 9/15: Solid electrolytic capacitors (H01G11/00 takes precedence)
- Y10T 428/2982: Particulate matter [e.g., sphere, flake, etc.]
- H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The invention pertains to a conductive material formulation comprising: (a) a conductive polymer material; and (b) an insulation material, wherein the conductive polymer material is derived from a conductive polymer and a polyanion and has a weight average molecular weight ranging from 3,000 to 30,000; and wherein the (b) insulation material is present in an amount of 0.01 part to 200 parts by weight based on 100 parts by weight of the (a) conductive polymer material. The conductive material formulation according to the invention is useful for the preparation of solid capacitors.

## Claims

### Claim 1

A conductive material formulation, comprising a plurality of separate components including:
(a) a first solution comprising a conductive polymer material, and
(b) a second solution comprising an insulation material,
wherein the conductive polymer material is derived from a conductive polymer and polyanion,
wherein the conductive polymer comprises a polymerization unit derived from a monomer of formula (I):
wherein
A is C1 to C4 alkylene substituted with (R)p,
X is O or S,
R is H, unsubstituted or substituted C1 to C20 alkyl or alkoxy, or unsubstituted or substituted C6 to C20 aryl, and
p is 0, 1 or 2, and
the conductive polymer has a weight average molecular weight in the range of 3,000 to 30,000, wherein the (b) insulation material is a non-conjugated polymer selected from the group consisting of polyethylene, polypropylene, carboxymethyl cellulose, polyethylene glycol, polyacrylamide and polytetrafluoroethene (Telfon); and wherein the (b) insulation material has a content of about 0.01 to about 50 parts by weight, based on 100 parts by weight of the (a) conductive polymer material.

### Claim 2 (depends on 1)

The conductive material formulation according to claim 1, wherein the conductive polymer material further comprises a polymerization unit derived from a monomer of formula (II):
wherein,
B1 is O, S or N,
B2 is N or C,
each of R1, R2 and R3 is independently H, unsubstituted or substituted C1 to C20 alkyl or alkoxy, or unsubstituted or substituted C6 to C20 aryl, and
each of q and w is independently 0 or 1.

### Claim 3 (depends on 1)

The conductive material formulation according to claim 1, wherein the monomer of formula (I) is selected from a group consisting of:
and a combination thereof,
wherein each of R4 and R5 is independently H, unsubstituted or substituted C1 to C15 alkyl or alkoxy, or unsubstituted or substituted C6 to C15 aryl.

### Claim 4 (depends on 2)

The conductive material formulation according to claim 2, wherein the monomer of formula (II) is selected from a group consisting of:
and a combination thereof,
wherein each of R1, R2 and R3 is independently H or C1 to C3 alkyl or alkoxy.

### Claim 5 (depends on 1)

The conductive material formulation according to claim 1, wherein the conductive polymer material has a size in the range of about 10 to about 1000 nanometers.

### Claim 6 (depends on 1)

The conductive material formulation according to claim 1, wherein the insulation material has a resistivity of 103 to 1012 Ω·m.

### Claim 7 (depends on 1)

A solid capacitor, comprising:
an anode;
a dielectric layer, formed on the anode;
a cathode; and
a solid electrolyte, located between the dielectric layer and the cathode, wherein the solid electrolyte comprises the conductive material formulation according to claim 1.

### Claim 8 (depends on 2)

A solid capacitor, comprising:
an anode;
a dielectric layer, formed on the anode;
a cathode; and
a solid electrolyte, located between the dielectric layer and the cathode,
wherein the solid electrolyte comprises the conductive material formulation according to claim 2.

### Claim 9 (depends on 3)

A solid capacitor, comprising:
an anode;
a dielectric layer, formed on the anode;
a cathode; and
a solid electrolyte, located between the dielectric layer and the cathode,
wherein the solid electrolyte comprises the conductive material formulation according to claim 3.

### Claim 10 (depends on 4)

A solid capacitor, comprising:
an anode;
a dielectric layer, formed on the anode;
a cathode; and
a solid electrolyte, located between the dielectric layer and the cathode,
wherein the solid electrolyte comprises the conductive material formulation according to claim 4.

### Claim 11 (depends on 5)

A solid capacitor, comprising:
an anode;
a dielectric layer, formed on the anode;
a cathode; and
a solid electrolyte, located between the dielectric layer and the cathode,
wherein the solid electrolyte comprises the conductive material formulation according to claim 5.

### Claim 12 (depends on 6)

A solid capacitor, comprising:
an anode;
a dielectric layer, formed on the anode;
a cathode; and
a solid electrolyte, located between the dielectric layer and the cathode,
wherein the solid electrolyte comprises the conductive material formulation according to claim 6.

### Claim 13 (depends on 1)

A solid capacitor produced by a process comprising (a) forming a capacitor body by forming a dielectric layer on an anode; (b) forming a solid electrolyte comprising the conductive material formulation according to claim 1 on the dielectric layer by immersing the capacitor body into the first solution comprising the conductive polymer material and immersing the capacitor body into the second solution comprising the insulation material respectively in either order, wherein the respective first and second solutions are heated to dry after the respective immersing steps; and (c) forming a cathode on the dielectric layer.
