US 12,374,913 B2
Charge/discharge management in electrochemical cells, including partial cycle control
Yuriy V. Mikhaylik, Tucson, AZ (US); and Chariclea Scordilis-Kelley, Tucson, AZ (US)
Assigned to Sion Power Corporation, Tucson, AZ (US)
Filed by Sion Power Corporation, Tucson, AZ (US)
Filed on Feb. 3, 2022, as Appl. No. 17/592,398.
Claims priority of provisional application 63/240,859, filed on Sep. 3, 2021.
Claims priority of provisional application 63/184,639, filed on May 5, 2021.
Claims priority of provisional application 63/146,512, filed on Feb. 5, 2021.
Prior Publication US 2022/0271537 A1, Aug. 25, 2022
Int. Cl. H02J 7/00 (2006.01); G01R 31/382 (2019.01); G01R 31/396 (2019.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01)
CPC H02J 7/007 (2013.01) [G01R 31/382 (2019.01); G01R 31/396 (2019.01); H01M 10/425 (2013.01); H01M 10/441 (2013.01); H01M 10/482 (2013.01); H02J 7/0068 (2013.01); H01M 2010/4271 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electrochemical cell management system comprising:
an electrochemical cell; and
at least one controller configured to:
control the cell such that the cell is charged over a first state of charge range having breadth of at least 20%,
wherein an average charging rate over a first portion of the first state of charge range is lower than an average charging rate over a second portion of the first state of charge range,
wherein the first portion spans at least 2% of the first state of charge range and the second portion spans at least 2% of the first state of charge range,
wherein the first portion occurs before the second portion, and
wherein the at least one controller is configured to:
control the cell such that the cell is discharged over a second state of charge range having breadth of at least 2% and at most 90%, and then discharged over a third state of charge range having breadth of at least 2%,
wherein an average discharging rate over the second state of charge range is at least 2 times an average discharging rate over the third state of charge range.