US 12,227,855 B2
Reactant flow channels for electrolyzer applications
Sean Michael MacKinnon, Vancouver (CA); Matthew Paul Paone, Burnaby (CA); Raoul Jacob Kingma, Langley (CA); and Greg John Montie, Squamish (CA)
Assigned to Loop Energy Inc., Burnaby (CA)
Filed by LOOP ENERGY INC., Burnaby (CA)
Filed on Jun. 2, 2021, as Appl. No. 17/336,559.
Application 17/336,559 is a continuation in part of application No. 16/914,470, filed on Jun. 29, 2020, abandoned.
Application 17/336,559 is a continuation in part of application No. 16/861,268, filed on Apr. 29, 2020, granted, now 11,489,175.
Application 16/914,470 is a continuation of application No. 16/011,867, filed on Jun. 19, 2018, granted, now 10,734,661, issued on Aug. 4, 2020.
Application 17/336,559 is a continuation of application No. 15/485,195, filed on Apr. 11, 2017, granted, now 11,060,195.
Application 15/485,195 is a continuation of application No. 14/683,450, filed on Apr. 10, 2015, granted, now 9,644,277, issued on May 9, 2017.
Application 16/861,268 is a continuation of application No. 14/622,830, filed on Feb. 14, 2015, granted, now 10,686,199.
Application 16/011,867 is a continuation of application No. 14/621,399, filed on Feb. 13, 2015, granted, now 10,062,913.
Application 14/683,450 is a continuation of application No. PCT/CA2013/050769, filed on Oct. 10, 2013.
Application PCT/CA2013/050769 is a continuation in part of application No. PCT/CA2013/050626, filed on Aug. 14, 2013.
Application 14/621,399 is a continuation of application No. PCT/CA2013/050626, filed on Aug. 14, 2013.
Application PCT/CA2013/050626 is a continuation in part of application No. PCT/CA2013/050627, filed on Aug. 14, 2013.
Application 14/622,830 is a continuation of application No. PCT/CA2013/050627, filed on Aug. 14, 2013.
Claims priority of provisional application 61/801,532, filed on Mar. 15, 2013.
Claims priority of provisional application 61/712,010, filed on Oct. 10, 2012.
Claims priority of provisional application 61/712,236, filed on Oct. 10, 2012.
Claims priority of provisional application 61/683,156, filed on Aug. 14, 2012.
Prior Publication US 2021/0310135 A1, Oct. 7, 2021
Int. Cl. C25B 1/04 (2021.01); C25B 9/19 (2021.01); C25B 9/70 (2021.01); C25B 9/73 (2021.01); C25B 11/00 (2021.01); H01M 8/026 (2016.01); H01M 8/0263 (2016.01); H01M 8/0265 (2016.01); H01M 8/0267 (2016.01); H01M 8/0656 (2016.01); H01M 8/10 (2016.01); H01M 8/18 (2006.01); H01M 8/241 (2016.01); H01M 8/2457 (2016.01); H01M 8/2465 (2016.01); H01M 8/2483 (2016.01)
CPC C25B 1/04 (2013.01) [C25B 9/19 (2021.01); C25B 9/70 (2021.01); C25B 9/73 (2021.01); C25B 11/00 (2013.01); H01M 8/026 (2013.01); H01M 8/0263 (2013.01); H01M 8/0265 (2013.01); H01M 8/0267 (2013.01); H01M 8/0656 (2013.01); H01M 8/186 (2013.01); H01M 8/241 (2013.01); H01M 8/2457 (2016.02); H01M 8/2483 (2016.02); H01M 2008/1095 (2013.01); H01M 8/2465 (2013.01); Y02E 60/36 (2013.01); Y02E 60/50 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrolyzer assembly for generating hydrogen and oxygen from water, said electrolyzer assembly comprising a plurality of unit cells, each unit cell comprising:
(a) a proton exchange membrane interposed between an anode and a cathode;
(b) a cathode flow field layer adjacent to said cathode; and
(c) an anode flow field layer adjacent to said anode, said anode flow field layer defining an anode flow field that fluidly connects an anode inlet to an anode outlet, said anode flow field for directing water to said anode and for carrying oxygen produced at said anode,
wherein said anode flow field layer comprises a porous material adjacent said anode, and said anode flow field comprises passageways extending within said porous material, and
wherein said anode flow field has a fluid flow area that decreases monotonically from said anode inlet to said anode outlet.