Electrolyzer cell arrangement

C - Chemistry – Metallurgy – 25 – B

Patent

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C25B 9/06 (2006.01) C25B 11/03 (2006.01)

Patent

CA 2538738

Some embodiments of the present invention provide electrolyzer cells in which distribution of water over the surface of an electrolyte layer (e.g. a MEA) is improved. Specifically, some embodiments provide an electrolyzer cell, including a flow field plate arranged in combination with at least two porous metal layers having smooth and flat surfaces, in which water is more uniformly distributed across an active surface of an electrolyte layer, which in turn may lead to a more uniform reaction rate over the active area of the electrolyte layer. Other related embodiments also include simplifications that may reduce costs related to manufacturing and assembly of electrochemical cells.

Dans certains modes de réalisation, l'invention concerne des cellules d'électrolyseur dans lesquelles la distribution d'eau sur la surface d'une couche d'électrolyte (par exemple, un MEA) est améliorée. De manière plus spécifique, certains modes de réalisation permettent de fournir une cellule électrolyseur comprenant une plaque de champ d'écoulement combinée avec au moins deux couches de métal poreux à surfaces lisses et plates, dans lesquelles l'eau est uniformément distribuée sur la surface active d'une couche d'électrolyte, qui à son tour peut conduire à une vitesse de réaction plus uniforme sur la zone active de ladite couche d'électrolyte. D'autres modes de réalisations correspondant comprennent des simplifications permettant de réduire les coûts associés à la production et à l'assemblage de cellules électrochimiques.

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