Electrochemical cell with zinc anode

Details Electrochemical cell with zinc anode Electrochemical cell with zinc anode

H - Electricity

01

M

H01M 6/02 (2006.01) H01M 4/06 (2006.01) H01M 6/08 (2006.01)

Patent

CA 2160357

The present invention is an improved alkaline cell (10) wherein the capacity of each of the anode (20) and cathode (16) is at least 0.48 and more preferably at least 0.5 ampere- hour per cm3 of internal cell volume. This is achieved by employing zinc densities of at least 1.4 grams of zinc per cm3 of anode volume and manganese dioxide densities of at least 2.7 grams per cm3 of cathode volume.

L'invention concerne un élément alcalin amélioré (10) où la capacité tant de l'anode (20) que de la cathode (16) est d'au moins 0,48 et, de préférence, d'au moins 0,5 ampère-heure par cm3 de volume interne de l'élément. Ce résultat provient de l'utilisation de densités de zinc atteignant au moins 1,4 g/cm3 de volume d'anode, et de densités de dioxyde de manganèse atteignant au moins 2,7 g/cm3 de volume de cathode.

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