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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.:

US 12512499 B1

PDFFull Text
Date of Patent:
Dec. 30, 2025

Filed:

Mar. 08, 2023

Methods and systems for determining average oxidation state of redox flow battery systems

Applicant:

Cougar Creek Technologies, Llc, Kirkland, WA (US);

Inventors:

Kui Wei, Bellevue, WA (US);

Liyu Li, Bellevue, WA (US);

Assignee:

COUGAR CREEK TECHNOLOGIES, LLC, Kirkland, WA (US);

Attorneys:

Branch Partners PLLC

Bruce E. Black

Primary Examiner:

Haroon S Sheikh

Int. Cl.
CPC ...
H01M 8/18 (2006.01); C01G 31/00 (2006.01); C22B 3/44 (2006.01); G01R 31/392 (2019.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/66 (2006.01); H01M 8/04082 (2016.01); H01M 8/04276 (2016.01); H01M 8/04298 (2016.01); H01M 8/0444 (2016.01); H01M 8/04537 (2016.01); H01M 10/36 (2010.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 8/188 (2013.01); C01G 31/00 (2013.01); C22B 3/44 (2013.01); G01R 31/392 (2019.01); H01M 4/368 (2013.01); H01M 4/38 (2013.01); H01M 4/661 (2013.01); H01M 8/04201 (2013.01); H01M 8/04276 (2013.01); H01M 8/04298 (2013.01); H01M 8/04447 (2013.01); H01M 8/04455 (2013.01); H01M 8/04477 (2013.01); H01M 8/04544 (2013.01); H01M 10/36 (2013.01); H01M 10/42 (2013.01); H01M 2300/0005 (2013.01);
Abstract

A method for determining an average oxidation state (AOS) of a redox flow battery system includes measuring a charge capacity for a low potential charging period starting from a discharged state of the redox flow battery system to a turning point of a charge voltage; and determining the AOS using the measured charge capacity and volumes of anolyte and catholyte of the redox flow battery system. Other methods can be used to determine the AOS for a redox flow battery system or use discharge voltage instead of charging voltage.

Find Patent Forward Citations

Wei, Kui. (2025). Methods and systems for determining average oxidation state of redox flow battery systems (U.S. Patent No. 12512499). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12512499

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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