US 11,859,299 B2
Temperature control of an electrolyzer cell
Thomas H. McWaid, Santa Cruz, CA (US); Gal Mariansky, Morgan Hill, CA (US); and Shizhao Su, Marina, CA (US)
Assigned to Verdagy, Inc., Moss Landing, CA (US)
Filed by Verdagy, Inc., Moss Landing, CA (US)
Filed on Feb. 1, 2023, as Appl. No. 18/163,030.
Application 18/163,030 is a continuation in part of application No. 17/938,319, filed on Oct. 5, 2022.
Claims priority of provisional application 63/305,470, filed on Feb. 1, 2022.
Prior Publication US 2023/0243048 A1, Aug. 3, 2023
Int. Cl. C25B 9/67 (2021.01); C25B 1/02 (2006.01); C25B 9/19 (2021.01); C25B 15/08 (2006.01); C25B 15/021 (2021.01); C25B 9/70 (2021.01)
CPC C25B 9/67 (2021.01) [C25B 1/02 (2013.01); C25B 9/19 (2021.01); C25B 9/70 (2021.01); C25B 15/021 (2021.01); C25B 15/08 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An electrolyzer system comprising:
a stack of one or more electrolyzer cells, each electrolyzer cell comprising:
a first half cell with a first electrode;
a second half cell with a second electrode; and
a separator between the first half cell and the second half cell;
wherein a current is applied between the first electrode and the second electrode of each of the one or more electrolyzer cells;
a first electrolyte feed stream for feeding a first electrolyte solution at a first inlet temperature to the first half cell of each of the one or more electrolyzer cells;
a second electrolyte feed stream for feeding a second electrolyte solution at a second inlet temperature to the second half cell of each of the one or more electrolyzer cells;
a first electrolyte outlet stream for withdrawing the first electrolyte solution from the first half cell of each of the one or more electrolyzer cells;
a second electrolyte outlet stream for withdrawing the second electrolyte solution from the second half cell of each of the one or more electrolyzer cells; and
a temperature control apparatus to adjust one or both of the first inlet temperature of at least one of the one or more electrolyzer cells and the second inlet temperature of at least one of the one or more electrolyzer cells,
wherein the temperature control apparatus comprises one or more controllers configured for feed-forward control of an electrolyte temperature at the separator of at least one of the one or more electrolyzer cells by adjusting one or both of the first inlet temperature of at least one of the one or more electrolyzer cells and the second inlet temperature of at least one of the one or more electrolyzer cells based on one or both of: the current between the first electrode and the second electrode of at least one of the one or more electrolyzer cells, and a voltage measured across the first and second electrodes of at least one of the one or more electrolyzer cells.