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. 23, 2021
Filed:
Jan. 03, 2018
Applicant:
Nanotek Instruments, Inc., Dayton, OH (US);
Inventors:
Aruna Zhamu, Springboro, OH (US);
Bor Z. Jang, Centerville, OH (US);
Assignee:
Nanotek Instruments Group, LLC, Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 11/06 (2013.01); H01G 11/22 (2013.01); H01G 11/24 (2013.01); H01G 11/26 (2013.01); H01G 11/28 (2013.01); H01G 11/32 (2013.01); H01G 11/46 (2013.01); H01G 11/36 (2013.01); H01G 11/52 (2013.01); H01G 11/48 (2013.01); H01G 11/66 (2013.01); H01G 11/86 (2013.01); C08G 73/02 (2006.01); C08G 61/12 (2006.01); H01G 11/38 (2013.01); H01G 11/58 (2013.01);
U.S. Cl.
CPC ...
H01G 11/36 (2013.01); C08G 61/124 (2013.01); C08G 61/126 (2013.01); C08G 73/0266 (2013.01); H01G 11/24 (2013.01); H01G 11/28 (2013.01); H01G 11/38 (2013.01); H01G 11/46 (2013.01); H01G 11/48 (2013.01); H01G 11/52 (2013.01); H01G 11/66 (2013.01); H01G 11/86 (2013.01); C08G 2261/3221 (2013.01); C08G 2261/3223 (2013.01); C08K 2201/001 (2013.01); H01G 11/06 (2013.01); H01G 11/58 (2013.01);
Abstract
Provided is a supercapacitor comprising an anode, a cathode, an ion-permeable separator disposed between the anode and the cathode, and an electrolyte in ionic contact with the anode and the cathode, wherein at least one of the anode and the cathode contains multiple graphene sheets spaced by cellulosic nanofibers and has a specific surface area from 50 to 3,300 m/g. Also provided is a process for producing an electrode for such a supercapacitor having a large electrode thickness, high active mass loading, high tap density, and exceptional energy density.