Electrochemical cell with improved internal contact

Details Electrochemical cell with improved internal contact Electrochemical cell with improved internal contact

H - Electricity

01

M

H01M 2/22 (2006.01)

Patent

CA 2700109

Electrochemical battery cells with strip-like electrodes and having a pressure contact between a lead from one of the electrodes and a side wall of the cell container. An electrochemical cell having a spiral wound electrode assembly having an internal lead in direct pressure contact with a lithium foil negative electrode free of a separate current collector and in contact with an inner portion of the cell container, wherein specified contact between the lead and lithium foil provides current flow between the container and foil.

L'invention concerne des éléments de batterie électrochimique à électrodes de type bande et ayant un contact de pression entre un conducteur provenant de l'une des électrodes et une paroi latérale du corps de pile. Une pile électrochimique a un ensemble d'électrode enroulée en spirale ayant un conducteur interne en contact de pression direct avec une électrode négative à feuille de lithium dépourvue d'un collecteur de courant séparé et en contact avec une partie interne du corps de pile, un contact spécifié entre le conducteur et la feuille de lithium assurant une circulation de courant entre le corps et la feuille.

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