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:
Oct. 27, 2026

Filed:

Dec. 06, 2021
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Kadoma, JP;

Inventors:

Masanori Sugimori, Osaka, JP;

Yusuke Fukumoto, Osaka, JP;

Yuji Yokoyama, Hyogo, JP;

Nobuhiro Hirano, Hyogo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); B82Y 30/00 (2011.01); H01M 4/02 (2006.01); H01M 4/1393 (2010.01); H01M 4/38 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/625 (2013.01); B82Y 30/00 (2013.01); H01M 4/1393 (2013.01); H01M 4/386 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01);
Abstract

Provided is a carbon nanotube dispersion liquid for an electrode slurry such that it is possible to inhibit a decrease in a charge-discharge cycle characteristic. A carbon nanotube dispersion liquid for an electrode slurry according to one aspect of the present disclosure includes carbon nanotubes having a diameter of 0.4 to 2 nm, a dispersant, and a dispersion medium. In a Raman spectroscopy spectrum, the carbon nanotubes have a G/D ratio, which is the ratio of the peak intensities of the G-band (1560 to 1600 cm) and the D-band (1310 to 1350 cm), within the range of 50 to 200, and in a volume-based particle size distribution via a laser diffraction method, the carbon nanotubes have 3 to 5 peaks, and if the peaks are, from the small particle diameter side, P, P, . . . , P, the greatest frequency peak is in the range pf Pto P.


Find Patent Forward Citations

Sugimori, Masanori. (2026). Carbon nanotube dispersion liquid for electrode slurry, negative electrode slurry, nonaqueous electrolyte secondary battery, and manufacturing method for carbon nanotube dispersion liquid for electrode slurry (U.S. Patent No. 12776493). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12776493

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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