MEJORAS A UNA CELDA ELECTROQUIMICA ALCALINA SELLADA Y RECARGABLE

摘要

A sealed, rechargeable nickel-zinc cell (10) includes a zinc electrode active mass (30) essentially free of zinc metal when at full discharge, a carboxylated styrene-butadiene binder retaining the zinc electrode mixture in a coherent structure, a predermined amount of cadmium being included in the zinc electrode mixture, a separator (34) preferably comprising at least two layers (42) and (44) of material free of any adhesive binding the layers together and a wicking layer (36) positioned between the nickel positive electrode (32) and the separator.