Apparatus and method for coating current collectors

Details Apparatus and method for coating current collectors Apparatus and method for coating current collectors

H - Electricity

01

M

H01M 4/04 (2006.01) B05C 1/08 (2006.01) H01M 4/66 (2006.01)

Patent

CA 2318533

Apparatus and process for continuously coating a web (11) of current collectors with an electrically conductive adhesive material for electrochemical cells and batteries. The apparatus includes: (a) a source of the web of current collector material; (b) a reservoir (26) containing the liquid composition (28); (c) a first rotatable roller (20) having an exterior surface that is at least partially submerged in the liquid composition whereby liquid composition adheres to the exterior surface of the first rotatable roller (24) which comes into contact with the liquid composition; and (d) a second rotatable roller that is positioned adjacent to the first rotatable roller and wherein an exterior surface of the second rotatable roller and an exterior surface of the first rotatable roller defines a nip (21) through which the web of current collector material traverses.

L'invention concerne un dispositif et un procédé qui permettent d'assurer le revêtement continu d'une bande (11) de matériau collecteur de courant avec un adhésif conducteur, pour les cellules et batteries électrochimiques. Le dispositif comprend : (a) une source d'alimentation de bande de matériau collecteur de courant; (b) un réservoir (26) contenant une composition liquide (28); (c) un premier rouleau rotatif (20) ayant une surface extérieure au moins partiellement immergée dans ladite composition, laquelle adhère à la surface extérieure du premier rouleau (24) qui vient au contact de la composition liquide; et (d) un second rouleau rotatif adjacent au premier rouleau, sachant qu'une surface extérieure du second rouleau et une surface extérieure du premier rouleau définissent une ligne de contact (21) par laquelle passe le matériau collecteur de courant.

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