Method for the fabrication of electrochemical cells

Details Method for the fabrication of electrochemical cells Method for the fabrication of electrochemical cells

H - Electricity

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M

H01M 8/24 (2006.01) C25B 9/02 (2006.01) C25B 9/20 (2006.01) H01M 2/02 (2006.01) H01M 6/46 (2006.01) H01M 8/02 (2006.01) H01M 10/04 (2006.01)

Patent

CA 2239862

A method of fabricating an electrochemical or galvanic cell comprising a plurality of electrochemical components, which electrochemical components are joined together in a stack, which method comprises: i) providing a first component (1) formed from a deformable polymeric material with at least one substantially continuous groove (2) comprising a female opening having a width of w and a depth of h; ii) providing a second component (3) with at least one substantially continuous upstand (4) having a width of > w and a height of < h; iii) pressing the first and second components together in order to provide an integral seal between the upstand on the second component and the opening in the first component, with the seal between the parts being provided by sealing engagement of the sides of the upstand with the sides of the openings; and iv) joining a plurality of first and second components together to form a stack.

Procédé de fabrication d'une pile électrochimique ou galvanique composée d'une pluralité d'éléments électrochimiques réunis dans un empilement. D'après ce procédé, (i) on prend un premier élément (1) en matériau polymère déformable comportant au moins une rainure sensiblement continue (2) comprenant une ouverture femelle possédant une largeur w et une profondeur h; (ii) on prend un deuxième élément (3) comportant au moins une protubérance sensiblement continue (4) possédant une largeur ?w et une hauteur ?h; (iii) on presse le premier et le deuxième élément l'un contre l'autre, de manière à créer une étanchéité totale entre la protubérance du deuxième élément et l'ouverture du premier élément, l'étanchéité entre les pièces étant constituée par le contact des côtés de la protubérance avec les côtés de l'ouverture; et (iv) on réunit une pluralité de premier et deuxième éléments, afin de constituer un empilement.

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