US 12,081,060 B2
Minimizing irreversible swelling during battery charging
Anantharaman Subbaraman, Mountain View, CA (US); Camille Usubelli, San Jose, CA (US); Michael Metzger, Sunnyvale, CA (US); Farshad Ramezan Pour Safaei, Los Gatos, CA (US); Münir Besli, San Jose, CA (US); and Nikhil Ravi, Redwood City, CA (US)
Assigned to Robert Bosch GmbH, (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Sep. 11, 2020, as Appl. No. 17/018,348.
Prior Publication US 2022/0085635 A1, Mar. 17, 2022
Int. Cl. H02J 7/00 (2006.01); H01M 10/44 (2006.01)
CPC H02J 7/00719 (2020.01) [H01M 10/44 (2013.01); H02J 7/0048 (2020.01); H02J 7/007194 (2020.01); H01M 2220/30 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of charging a battery, comprising:
iteratively determining a plurality of charge profiles of the battery;
based on the plurality of charge profiles indicating a set of data that includes charge value data and swelling value data, iteratively determining swelling of the battery, wherein iteratively determining a plurality of charge profiles includes (1) determining a first charge profile of the battery; and (2) after a discharge of the battery, determining a second charge profile of the battery;
determining a first region of interest by comparing the first and second charge profiles;
adjusting a charge current in the first region of interest during the subsequent charging of the battery, wherein each of the first and second charge profiles define a relationship between a state of charge and a swelling of the battery; and
adjusting the charge current during a subsequent charging of the battery.