Compression arrangement for fuel or electrolysis cells in a...

Details Compression arrangement for fuel or electrolysis cells in a... Compression arrangement for fuel or electrolysis cells in a...

H - Electricity

01

M

H01M 8/24 (2006.01)

Patent

CA 2753450

A fuel cell stack or an electrolysis cell stack comprises a plurality of cells, which need to be compressed to ensure and maintain internal contact. To achieve an evenly distributed compression force throughout the electrochemically active area a frame with a central aperture is positioned on top of the cell stack between a resilient plate and a top plate. The enclosed aperture forms a compression chamber which is provided with pressurised gas from the cathode inlet, whereby an evenly distributed force is applied to the electrochemically area of the cell stack by the resilient plate.

L'empilement de piles à combustible ou l'empilement de piles à électrolyse selon la présente invention comprend une pluralité de piles, qui doivent être comprimées afin de garantir et de maintenir le contact interne. En vue d'obtenir un effort de compression homogène sur l'ensemble de la zone active en termes électrochimiques un cadre pourvu d'une ouverture centrale est placé au-dessus de l'empilement de piles entre une plaque élastique et une plaque supérieure. L'ouverture enserrée forme une chambre de compression qui est alimentée par un gaz sous pression provenant de l'orifice d'entrée de la cathode, ce qui permet d'appliquer un effort homogène à la zone active en termes électrochimiques de l'empilement de piles au moyen de la plaque élastique.

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