US 12,288,907 B2
Method for temperature control of a solid oxide electrochemical system having integrated heating means
Charlotte Bernard, Grenoble (FR); Jérôme Aicart, Grenoble (FR); Julie Mougin, Grenoble (FR); and Géraldine Palcoux, Grenoble (FR)
Assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Appl. No. 17/288,090
Filed by COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
PCT Filed Oct. 23, 2019, PCT No. PCT/FR2019/052533
§ 371(c)(1), (2) Date Apr. 23, 2021,
PCT Pub. No. WO2020/084257, PCT Pub. Date Apr. 30, 2020.
Claims priority of application No. 18 59931 (FR), filed on Oct. 26, 2018.
Prior Publication US 2021/0376351 A1, Dec. 2, 2021
Int. Cl. H01M 8/2428 (2016.01); H01M 8/04007 (2016.01); H01M 8/04701 (2016.01); H01M 8/248 (2016.01); H01M 8/12 (2016.01)
CPC H01M 8/04708 (2013.01) [H01M 8/04037 (2013.01); H01M 8/04067 (2013.01); H01M 8/2428 (2016.02); H01M 8/248 (2013.01); H01M 2008/1293 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for thermal regulation of an electrochemical system comprising a stack of n electrochemical cells, n being an integer greater than or equal to 2, the electrochemical cells being solid-oxide electrolyser cells or solid-oxide fuel cells, and at least n−1 interconnection plates interposed between the electrochemical cells, at least one gas supplier for supplying gas to the electrochemical cells and at least one gas collector for collecting gases produced by the electrochemical cells, and at least one electric connector for electrically connecting the system to the outside, wherein the electrochemical system also includes at least one heater integrated in the stack, said at least one heater including at least a first and a second heating element, said first and second heating elements being electrical, the first heating element being disposed in a first location in the stack and the second heating element being disposed in a second location in the stack, including:
applying a first command to the first heating element and a second command to the second heating element, said first and second commands being determined so as to maintain a thermal gradient, with regard to the heat supplied by the first and second heating elements, in the stack in a direction of the stack substantially at a given value, and
obtaining a differentiated regulation of the heating elements by managing an intensity of electric currents supplying each heating element by applying different amounts of heat according to one of reduced operating performance and thermal leakage of the electrochemical cells.