NON-SINTERING TYPE NICKEL POSITIVE ELECTRODE PLATE FOR ALKALINE STORAGE BATTERY

摘要

PURPOSE:To improve conductivity inside a plate to obtain a nickel positive plate having high utilization factor by making an active material holder carry a mixture containing nickel hydroxide powder having a surface layer of nickel oxihydroxide and cobalt compound powder under bivalent. CONSTITUTION:Spherical nickel hydroxide is dipped into a water solution consisting of chlorous acid sodium 2wt.% and hydroxide sodium 20wt.% to be washed and dried in order to manufacture nickel hydroxide having a surface layer of nickel oxihydroxide. An aqueous solution of methyl cellulose 0.5wt.% is added to active material powder consisting of nickel hydroxide powder 95wt.%, of which surface layer is of nickel oxihydroxide, and cobalt hydroxide powder 5wt.% to be mixed in order to manufacture an active material slurry. This active material slurry is filled in a foaming nickel substrate to be dried and rolled to obtain a plate having high active material density.