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:
May. 12, 2020
Filed:
May. 25, 2016
Lockheed Martin Energy, Llc, Bethesda, MD (US);
Arthur J. Esswein, San Francisco, CA (US);
Steven Y. Reece, Cambridge, MA (US);
Thomas H. Madden, Glastonbury, CT (US);
Thomas D. Jarvi, Manchester, CT (US);
John Goeltz, Carmel, CA (US);
Desiree Amadeo, Lunenburg, MA (US);
Evan R. King, Quincy, MA (US);
Nitin Tyagi, San Jose, CA (US);
Lockheed Martin Energy, LLC, Bethesda, MD (US);
Abstract
This invention is directed to aqueous redox flow batteries comprising ionically charged redox active materials and separators, wherein the separator is about 100 microns or less and the flow battery is capable of (a) operating with a current efficiency of at least 85% with a current density of at least about 100 mA/cm; (b) operating with a round trip voltage efficiency of at least 60% with a current density of at least about 100 mA/cm; and/or (c) giving rise to diffusion rates through the separator for the first active material, the second active material, or both, of about 1×10mol/cm-sec or less.