US 12,155,241 B2
Controllers for managing a plurality of stacks of electrochemical cells, and associated methods
Seth Marshall Kahn, Sonoma, CA (US); Corrado Cammi, Mountain View, CA (US); Anthony John Stratakos, Edgartown, MA (US); Rainer Johannes Fasching, Mill Valley, CA (US); Arnaud Devie, Menlo Park, CA (US); and Georgy Zerkalov, Santa Clara, CA (US)
Assigned to Element Energy, Inc., Menlo Park, CA (US)
Filed by Element Energy, Inc., Menlo Park, CA (US)
Filed on May 9, 2024, as Appl. No. 18/660,115.
Application 18/660,115 is a continuation in part of application No. 18/166,916, filed on Feb. 9, 2023.
Application 18/166,916 is a continuation in part of application No. 17/650,472, filed on Feb. 9, 2022, granted, now 11,699,909, issued on Jul. 11, 2023.
Claims priority of provisional application 63/465,267, filed on May 10, 2023.
Prior Publication US 2024/0291287 A1, Aug. 29, 2024
Int. Cl. H02J 7/00 (2006.01)
CPC H02J 7/0013 (2013.01) [H02J 7/0063 (2013.01); H02J 7/007 (2013.01); H02J 2207/20 (2020.01)] 17 Claims
OG exemplary drawing
 
1. A method for managing a plurality of stacks of electrochemical cells, the plurality of stacks being electrically coupled in parallel in a battery, the method comprising:
operating the plurality of stacks to execute a global operating strategy of the battery;
controlling one or more first power converters to change operation of one or more first stacks of the plurality of stacks to execute a first local operating strategy of operating the one or more first stacks at one of a constant power and a constant current, to enable determination of a differential charge profile of the one or more first stacks; and
controlling one or more second power converters to change operation of one or more second stacks of the plurality of stacks to compensate for change in operation of the one or more first stacks caused by executing the first local operating strategy of operating the one or more first stacks at one of a constant power and a constant current, and thereby maintain the global operating strategy of the battery while executing the first local operating strategy.