RECHARGEABLE ALKALINE MANGANESE DIOXIDE - ZINC CELL WITH LOW INTERNAL RESISTANCE AND IMPROVED CYCLE LIFE

摘要

Rechargeable alkaline manganese dioxide - zinc cell of the type comprising a metal container including a porous cathode consisting of a plurality of adjoining blocks, a zinc anode and a separator separating the cathode and anode, and an electrolyte impregnating the cathode and contacting with said separator and anode, in which a cloth-like material like graphite cloth, nickel sinter or other fabric material (which wet the electrolyte) is inserted between otherwise contacting blocks of the cathode body and it substantially decreases internal resistance owing to the fact that the electrolyte impregnates the porous cloth material and will thus have a larger contacting area with the cathode body.