Nickel hydrogen battery

H - Electricity – 01 – M

Patent

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Details

H01M 4/72 (2006.01) H01M 2/02 (2006.01) H01M 2/08 (2006.01) H01M 10/30 (2006.01)

Patent

CA 2463529

A segmented nickel hydrogen battery system includes a hydrogen storage segment (130) and a battery segment (120) in fluid communication with the storage segment. The battery segment includes a plurality of electrochemical cells each having a current collector plate (104) and a plastic seal component (104) provided about the peripheral edge of the collector plate. The plastic seal component may be secured to the collector plate using a variety of methods, but is preferably injection-molded about the collector plate edge. The collector plate/seal segment subassemblies may then be stacked and the seal components bonded together to form an integral seal. The electrodes and separator are placed between the collector plates before bonding. Preferably, the electrodes and separator are formed as a bipolar cell construction.

L'invention concerne un système de batterie nickel-hydrogène segmenté comprenant un segment de stockage (130) d'hydrogène et un segment de batterie (120) en communication fluidique avec ledit segment de stockage. Le segment de batterie comprend une pluralité de cellules électrochimiques comportant chacune une plaque collectrice (104) de courant et un composant d'étanchéité (104) en plastique placé autour du bord périphérique de ladite plaque collectrice. Le composant d'étanchéité en plastique peut être fixé à la plaque collectrice au moyen d'une variété de procédés mais il est, de préférence, moulé par injection autour du bord de la plaque collectrice. Les sous-ensembles plaque collectrice/segment d'étanchéité peuvent ensuite être empilés et les composants d'étanchéité reliés afin de former un joint d'étanchéité monobloc. Des électrodes et un séparateur sont placés entre les plaques collectrices avant leur liaison. Les électrodes et le séparateur sont, de préférence, formés comme une construction de cellule bipolaire.

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