The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 05, 2024

Filed:

Jun. 17, 2019
Applicants:

Toyo Ink SC Holdings Co., Ltd., Tokyo, JP;

Toyocolor Co., Ltd., Tokyo, JP;

Inventors:

Yu Morita, Tokyo, JP;

Tomoaki Masuoka, Tokyo, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); C01B 32/174 (2017.01); H01M 4/13 (2010.01); H01M 10/0525 (2010.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
H01M 4/625 (2013.01); C01B 32/174 (2017.08); H01M 4/13 (2013.01); H01M 10/0525 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01B 2202/22 (2013.01); C01B 2202/36 (2013.01); C01P 2002/72 (2013.01); C01P 2002/82 (2013.01);
Abstract

A carbon nanotube dispersion including a carbon nanotube, a solvent, and a dispersant. A highly conductive electrode membrane can be produced as a result of the carbon nanotube using a carbon nanotube dispersion satisfying (1), (2), and (3). (1) An average outer diameter is more than 3 nm and less than 10 nm. (2) A peak is present in a powder X-ray diffraction analysis at a diffraction angle of 2θ=25°±2°, and a half value width of the peak is 3° to 6°. (3) When a maximum peak intensity within the range of 1,560 to 1,600 cmin a Raman spectrum is G and a maximum peak intensity within the range of 1,310 to 1,350 cmis D, a G/D ratio is 0.5 to 4.5.


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