| abstract |
A method of making a cathode active material for a primary alkaline battery includes combining an alkali metal compound, a nickel-containing compound, one or more metal-containing compounds, and one or more non-metal-containing compounds to form a mixture; Heating the mixture in a stream of oxygen or an oxygen-enriched air stream at a temperature above at least 185 ° C., and cooling the mixture to at least 40 ° C. in an oxygen stream or an oxygen-enriched air stream; Heating the mixture in an oxygen stream or an oxygen-enriched air stream at a temperature above at least 775 ° C. to form a precursor, and treating the precursor with an acidic aqueous solution at a temperature below 10 ° C. And forming a doped alkali metal deficient nickel oxide. |