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.
Patent No.:
Date of Patent:
Mar. 12, 2019
Filed:
Oct. 06, 2015
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/583 (2010.01); B82Y 30/00 (2011.01); H01M 4/62 (2006.01); C01B 32/05 (2017.01); C01B 32/192 (2017.01); H01M 10/0525 (2010.01); B82Y 40/00 (2011.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/625 (2013.01); C01B 32/05 (2017.08); C01B 32/192 (2017.08); H01M 10/0525 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01B 2204/22 (2013.01); C01B 2204/30 (2013.01); C01B 2204/32 (2013.01); C01P 2002/82 (2013.01); H01M 10/052 (2013.01); Y10S 977/734 (2013.01); Y10S 977/842 (2013.01); Y10S 977/948 (2013.01);
Abstract
The present invention relates to preparation of a highly dispersible graphene powder. Further, the present invention includes providing an electrode for a lithium ion battery having good output characteristics and cycle characteristics by utilizing a highly dispersible graphene powder. The present invention also includes providing a graphene powder having a specific surface area of 80 m/g or more to 250 m/g or less as measured by BET measurement, and an oxygen-to-carbon element ratio of 0.09 or more to 0.30 or less as measured by X-ray photoelectron spectroscopy.