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:
Nov. 25, 2014
Filed:
Feb. 03, 2012
Aruna Zhamu, Centerville, OH (US);
Guorong Chen, Fairborn, OH (US);
Xiqing Wang, Cincinnati, OH (US);
Bor Z. Jang, Centerville, OH (US);
Yanbo Wang, Fairborn, OH (US);
Qing Fang, Fairborn, OH (US);
Aruna Zhamu, Centerville, OH (US);
Guorong Chen, Fairborn, OH (US);
Xiqing Wang, Cincinnati, OH (US);
Bor Z. Jang, Centerville, OH (US);
Yanbo Wang, Fairborn, OH (US);
Qing Fang, Fairborn, OH (US);
Nanotek Instruments, Inc., Dayton, OH (US);
Abstract
A surface-mediated cell (SMC) comprising: (a) a cathode comprising a carbon-based cathode active material having a surface area to capture or store lithium thereon; (b) an anode comprising an anode current collector alone, or combined anode current collector and anode active material; (c) a porous separator disposed between the anode and the cathode; (d) a lithium-containing electrolyte, wherein the anode and/or cathode active material has a specific surface area no less than 100 m/g in direct physical contact with the electrolyte to receive lithium ions therefrom or to provide lithium ions thereto; and (e) a lithium source disposed in at least one of the two electrodes when the cell is made, and the cell has an open-circuit voltage (OCV) of at least 0.8 volts; wherein the cell operates between a lower voltage limit lower than the OCV and an upper limit of between 3.8 and 4.5 volts.