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:
Sep. 07, 2021
Filed:
Oct. 11, 2019
Applicant:
Johnson Controls Fire Protection Lp, Boca Raton, FL (US);
Inventors:
Robert Reginald Albert Feltham, Fort Lauderdale, FL (US);
Martin A. Chiarizio, Coral Springs, FL (US);
Vyacheslav Voloshin, Coral Springs, FL (US);
Assignee:
JOHNSON CONTROLS FIRE PROTECTION LP, Boca Raton, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/36 (2020.01); G01R 31/3835 (2019.01); H01M 10/42 (2006.01); H01M 10/48 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3835 (2019.01); G01R 31/3648 (2013.01); H01M 10/4257 (2013.01); H01M 10/48 (2013.01); H01M 2010/4278 (2013.01);
Abstract
A method for determining lithium battery passivation starts by applying a load across a lithium battery at the start of a test interval. Measurements of the battery's voltage are taken after applying the load, and then again periodically during the test interval. A final measurement of the battery's voltage at the end of the test interval. The state of the battery is then determined based on the first and final measurements, and at least one of the periodic measurements.