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:
Jul. 29, 2025
Filed:
Feb. 14, 2022
Global Graphene Group, Inc., Dayton, OH (US);
Bor Z. Jang, Centerville, OH (US);
Honeycomb Battery Company, Dayton, OH (US);
Abstract
A rechargeable sodium-ion cell, comprising an anode, a cathode, a separator that electronically isolates the anode from the cathode, and an electrolyte in ionic contact with the anode active and the cathode, wherein the anode comprises a graphite or carbon material having expanded inter-graphene planar spaces with an inter-planar spacing dfrom 0.43 nm to 3.0 nm, as measured by X-ray diffraction, and the expanded inter-graphene planar spaces store sodium ions to a specific capacity no less than 150 mAh/g when the cell is in a charged state. Also provided is a method of producing such an anode and sodium-ion cell.