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:
Mar. 23, 2021
Filed:
Aug. 13, 2019
International Business Machines Corporation, Armonk, NY (US);
Xing Li, Shenzhen, CN;
Robert B Schlak, Hyde Park, NY (US);
Richard John Fishbune, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Described herein are techniques for battery management. The techniques include a method comprising initializing a battery management system (BMS) associated with a battery and calculating a degraded battery capacity by charging the battery from a first voltage threshold to a test voltage threshold, discharging the battery from the test voltage threshold to the first voltage threshold, collecting measurements of discharge capacity at predetermined voltage measurement points while discharging the battery from the test voltage threshold to the first voltage threshold, generating a polynomial fit function for discharge capacity as a function of voltage for the battery based on the measuring, and estimating the degraded battery capacity. The method further includes charging the battery based on the degraded battery capacity, the charging resulting in the battery maintaining an updated voltage threshold.