IP Library Granted Patent US 10,128,505
Granted Patent B2
US 10,128,505 · App. 15/819,102 · Granted Nov 13, 2018

Carbon material, electrode material using same and method of manufacturing same

Inventors: Tsukasa Maruyama (Hiratsuka, JP); Tomoyuki Sakai (Hiratsuka, JP); Yoshimasa Imazaki (Hiratsuka, JP)
Assignee: The Yokohama Rubber Co., Ltd.
H01M4/602H01G11/24H01G11/32H01G11/34H01G11/38H01G11/48H01M4/587Y02E60/13
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Quick Facts
Patent No.
US 10,128,505
App. No.
15/819,102
Granted
Nov 13, 2018
Kind
B2
Abstract

A method of manufacturing a carbon material comprising a composite of a porous carbon material and a conductive polymer, in which a dispersion solution of the porous carbon material and a dispersion solution of the conductive polymer are mixed to make the composite of the porous carbon material and the conductive polymer. The carbon material has: a specific surface area of 750 to 3000 m 2 /g, a methylene blue adsorption performance of 150 mL/g or more, and at least three peaks in a range 1250 to 1700 cm −1 of a spectrum obtained by laser Raman spectroscopy with an excitation wavelength of 532 nm.

Claims (10)

1. A method of manufacturing a carbon material comprising a composite of a porous carbon material and a conductive polymer,

the method comprising the steps of: (1) making a dispersion solution of porous carbon, (2) making a dispersion solution of the conductive polymer, and (3) mixing the dispersion solution of the porous carbon material and the dispersion solution of the conductive polymer to make the composite of the porous carbon material and the conductive polymer, the steps of (1) and (2) being in no particular order,

wherein the carbon material has a specific surface area of 750 to 3000 m 2 /g,

the carbon material has a methylene blue adsorption performance of 150 mL/g or more, and

the carbon material has at least three peaks in a range 1250 to 1700 cm −1 of a spectrum obtained by laser Raman spectroscopy with an excitation wavelength of 532 nm.

2. The method of manufacturing a carbon material according to claim 1 , wherein the carbon material has a zeta potential isoelectric point within a range pH 3.0 to pH 5.5.

3. The method of manufacturing a carbon material according to claim 1 , wherein the conductive polymer is a conductive polymer that includes a nitrogen atom and/or a conductive polymer that includes a sulfur atom.

4. The method of manufacturing a carbon material according to claim 3 , wherein the conductive polymer that includes a nitrogen atom is at least one selected from the group consisting of polyaniline, polypyrrole, polypyridine, polyquinoline, polythiazole, polyquinoxaline, and derivatives thereof.

5. The method of manufacturing a carbon material according to claim 3 , wherein the conductive polymer that includes a sulfur atom is at least one selected from the group consisting of polythiophene, polycyclopentadithiophene, and derivatives thereof.

6. The method of manufacturing a carbon material according to claim 1 , wherein the conductive polymer is at least one selected from the group consisting of polyfluorene and derivatives thereof.

Assignments (1)
DE-MERGER Recorded Dec 8, 2021
From: THE YOKOHAMA RUBBER CO., LTD.
To: SIKA HAMATITE CO., LTD.
Reel/Frame 060439/0022 →
Priority Claims (1)
JP 2013-031180 · Feb 20, 2013 · national
Continuity (2)
Continuation 14768932
Related Publication 20180076457A1 · Mar 15, 2018