H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/04 (2006.01) H01M 6/14 (2006.01)
Patent
CA 2658749
A primary electrochemical cell, and a method for making the same, relies upon a jellyroll electrode with a positive electrode material deposited on a conductive carrier having partially uncoated portion wherein electrochemically active material is coated on only one side of the carrier in order to achieve superior performance in comparison to a cell having no such uncoated portion. The partially uncoated portion is oriented along a longitudinal axis of the jellyroll. The positive electrode material is preferably iron disulfide, whereas the negative electrode comprises lithium or a lithium alloy.
Cellule électrochimique et son procédé de production, repose sur une électrode en spirale de type "jelly roll" dotée d'un matériau électrode positive déposé sur un support conducteur possédant une partie partiellement non revêtue, la matière électrochimiquement active étant recouverte sur une seule face du support afin d'obtenir des performances supérieures à celles d'une cellule dépourvue de partie non revêtue. La partie partiellement non revêtue est orientée le long d'un axe longitudinal de l'élément en spirale "jelly roll". Le matériau électrode positive est, de préférence, du disulfure de fer, tandis que l'électrode négative comprend du lithium ou un alliage de lithium.
Kaplin David A.
Marple Jack W.
Eveready Battery Company Inc.
Finlayson & Singlehurst
LandOfFree
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