Electrochemical cell design using a bipolar plate

Details Electrochemical cell design using a bipolar plate Electrochemical cell design using a bipolar plate

H - Electricity

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M

H01M 8/02 (2006.01) C25B 9/00 (2006.01) C25B 9/20 (2006.01) H01M 8/10 (2006.01) H01M 8/18 (2006.01)

Patent

CA 2393897

An electrochemical cell arrangement using a bipolar plate is disclosed, wherein the bipolar plates are formed from single or multiple sheets of metal foil (31, 33), preferably titanium, embossed with the fluid fields. The bipolar plate, which forms the oxygen (41), hydrogen (45), and coolant (43) passages and acts as a separator between adjacent cells of a cell stack, is lightweight, small compared to conventional bipolar plates, ductile, inexpensive, and easy to produce.

La présente invention concerne un agencement d'élément électrochimique à plaque bipolaire. Ces plaques bipolaires sont constituées d'une seule ou de plusieurs couches de profil (31, 33) métallique, de préférence de titane, estampées avec les champs fluidiques. Cette plaque bipolaire, qui forme les passages d'oxygène (41), d'hydrogène (45) et de fluide de refroidissement (43) et qui agit comme une séparation entre des éléments contiguës dans un empilement d'éléments, est légère et petite par rapport à des plaques bipolaires conventionnelles, ductile, peu onéreuse et facile à produire.

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