Housing for a sealed electrochemical battery cell

Details Housing for a sealed electrochemical battery cell Housing for a sealed electrochemical battery cell

H - Electricity

01

M

H01M 2/12 (2006.01)

Patent

CA 2563661

An electrochemical cell with a collector assembly for sealing the open end of a cell container. The collector assembly includes a retainer and a contact spring with a peripheral flange, each having a central opening therein. A pressure release vent member disposed between the retainer and the peripheral flange of the contact spring seals the openings in the retainer and contact spring under normal conditions and ruptures to release pressure from within the cell when the internal pressure exceeds a predetermined limit.

L'invention concerne une cellule électrochimique pourvue d'un ensemble collecteur destiné à fermer hermétiquement l'extrémité ouverte d'un contenant pour cellule. L'ensemble collecteur comprend un élément de retenue et un ressort de contact pourvu d'un rebord périphérique, chacun de ces éléments possédant une ouverture centrale. Un évent de régulation de pression disposé entre l'élément de retenue et le rebord périphérique du ressort de contact ferme hermétiquement les ouvertures formées dans l'élément de retenue et le ressort de contact dans des conditions normales et se rompt en vue d'une régulation de pression à partir de l'intérieur de la cellule lorsque la pression interne dépasse un seuil prédéterminé.

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