Fuel cell system with stored hydrogen

H - Electricity – 01 – M

Patent

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Details

H01M 8/04 (2006.01) H01M 8/06 (2006.01)

Patent

CA 2435013

An improved method and apparatus for quickly supplying hydrogen gas from a fuel processor, which in some embodiments is supplied to a fuel cell stack. The fuel cell system includes one or more fuel processors adapted to produce a product hydrogen stream, and one or more fuel cell stacks adapted to produce an electric current from the product hydrogen stream. The fuel cell system further includes a hydrogen storage device adapted to store hydrogen gas produced by the fuel processors(s) and deliver the stored hydrogen gas to the fuel cell stack(s), such as during times of increased load demand or times when the fuel processor(s) are not available to produce the hydrogen gas required by the fuel cell stack or other hydrogen-consuming device.

La présente invention concerne un dispositif et un procédé améliorés permettant de fournir rapidement de l'hydrogène à partir d'un dispositif de transformation de combustible; l'hydrogène étant, dans certains modes de réalisation, fourni à un empilement de piles à combustible. Le système de pile à combustible comprend un ou plusieurs dispositifs de transformation de combustible conçu(s) pour produire un courant d'hydrogène, et un ou plusieurs empilement(s) de piles à combustible conçu(s) pour produire un courant électrique à partir du courant d'hydrogène produit. Ledit système comprend également un dispositif de stockage de l'hydrogène, conçu pour stocker l'hydrogène produit par le(s) dispositif(s) de transformation de combustible et pour fournir l'hydrogène stocké à/aux empilement(s) de piles à combustible, par exemple, durant les pics de demandes de charge ou durant les périodes pendant lesquelles le(s) dispositif(s) de transformation de combustible ne peut/peuvent pas produire l'hydrogène sollicité par l'empilement de piles à combustible ou par tout autre dispositif à consommation d'hydrogène.

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