US 11,749,847 B2
Fast charging batteries at low temperatures with battery pack preheating
Said Al-Hallaj, Chicago, IL (US); Mohamad M. Salameh, Torrance, CA (US); Samuel T. Plunkett, Chicago, IL (US); Chengxiu Chen, Chicago, IL (US); and Stoyan Stoyanov, Chicago, IL (US)
Assigned to BEAM GLOBAL, San Diego, CA (US)
Filed by ALL CELL TECHNOLOGIES, LLC, Broadview, IL (US)
Filed on Feb. 18, 2022, as Appl. No. 17/675,112.
Claims priority of provisional application 63/152,611, filed on Feb. 23, 2021.
Prior Publication US 2022/0271352 A1, Aug. 25, 2022
Int. Cl. H01M 10/44 (2006.01); H01M 10/48 (2006.01); H01M 10/6571 (2014.01); H01M 10/615 (2014.01)
CPC H01M 10/443 (2013.01) [H01M 10/486 (2013.01); H01M 10/615 (2015.04); H01M 10/6571 (2015.04)] 17 Claims
OG exemplary drawing
 
1. A method for charging a battery pack including a plurality of electrochemical cells distributed within a thermal management composite matrix, the method comprising:
determining that a pack temperature and/or a voltage measurement of the battery pack is below a predetermined minimum threshold;
raising the pack temperature and/or the voltage measurement to the predetermined minimum threshold;
increasing a charging rate upon reaching the predetermined minimum threshold for the pack temperature and/or the voltage measurement; and
determining the charging rate as a function of a thermal state of charge of the thermal management composite matrix.