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. 21, 2024
Filed:
Jun. 29, 2021
Applicant:
Cougar Creek Technologies, Llc, Kirkland, WA (US);
Inventors:
Liyu Li, Bellevue, WA (US);
Qingtao Luo, Mukilteo, WA (US);
Assignee:
COUGAR CREEK TECHNOLOGIES, LLC, Kirkland, WA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/08 (2016.01); C22C 1/00 (2023.01); C22C 27/06 (2006.01); H01M 4/38 (2006.01); H01M 8/04186 (2016.01); H01M 8/04276 (2016.01); H01M 8/04537 (2016.01); H01M 8/04858 (2016.01); H01M 8/18 (2006.01); H01M 16/00 (2006.01); H01M 4/86 (2006.01); H01M 8/06 (2016.01);
U.S. Cl.
CPC ...
H01M 8/188 (2013.01); C22C 1/00 (2013.01); C22C 27/06 (2013.01); H01M 4/38 (2013.01); H01M 8/04186 (2013.01); H01M 8/04276 (2013.01); H01M 8/04544 (2013.01); H01M 8/04611 (2013.01); H01M 8/04932 (2013.01); H01M 8/08 (2013.01); H01M 16/003 (2013.01); H01M 2004/8694 (2013.01); H01M 8/0693 (2013.01); H01M 2300/0002 (2013.01); H01M 2300/0005 (2013.01);
Abstract
A method for preparation of electrolyte for a redox flow battery includes reducing chromium ore using a carbon source to convert the chromium ore to an iron/chromium alloy with carbon particles; dissolving the iron/chromium alloy with carbon particles in sulfuric acid to form a first solution; adding calcium chloride or barium chloride to the first solution to produce a second solution including FeCland CrCl; and adding an acid to the second solution to form the electrolyte. Other methods can be used for preparing an electrolyte from chromium waste material.