Manufacturing method of nickel plate and manufacturing method of alkaline battery

A method of manufacturing a nickel battery plate, comprising the steps of mixing a positive active material powder including as the principle component nickel hydroxide with a cobalt compound powder having a grain size no greater than 20 microns and a surface area of at least 10 m.sup.2 /g, oxidizing with an oxidizing agent selected from the group consisting of K.sub.2 S.sub.2 O.sub.8, Na.sub.2 S.sub.2 O.sub.2, (NH.sub.4).sub.2 S.sub.2 O.sub.8 and H.sub.2 O.sub.2 so as to form a beta cobalt oxyhydroxide on the surface of the nickel hydroxide powder, and filling this oxide coated powder (is filled) in a three-dimensional porous substrate comprising an alkali-resistant metal.

A method of manufacturing a nickel battery plate, comprising the steps of filling a three-dimensional porous substrate comprising an alkali-resistant metal with a positive active material powder including as a principle component nickel hydroxide, and oxidizing with an oxidizing agent selected from the group consisting of K.sub.2 S.sub.2 O.sub.8, Na.sub.2 S.sub.2 O.sub.8, (NH.sub.4).sub.2 S.sub.2 O.sub.8 and H.sub.2 O.sub.2 so as to form a beta cobalt oxyhydroxide on the surface of the nickel hydroxide powder, in a solution containing cobalt ions.

A method of manufacturing a nickel battery plate, comprising the steps of forming a solution of a positive active material powder including as the principle component nickel hydroxide and cobalt ions, oxidizing with an oxidizing agent selected from the group consisting of K.sub.2 S.sub.2 O.sub.8, Na.sub.2 S.sub.2 O.sub.8, (NH.sub.4).sub.2 S.sub.2 O.sub.8 and H.sub.2 O.sub.2 so as to form a beta cobalt oxyhydroxide on the surface of the nickel hydroxide powder, and filling a three-dimensional porous substrate comprising an alkali-resistant metal with the oxide coated powder.

A method of manufacturing a nickel battery plate, comprising the steps of mixing a positive active material powder including as the principle component nickel hydroxide with a beta cobalt oxyhydroxide powder, and filling this mixture in a three-dimensional porous substrate comprising an alkali-resistant metal.

A method of manufacturing a nickel battery plate, comprising the steps of forming a solution of a positive active material powder including as the principle component nickel hydroxide and cobalt ions, oxidizing with an oxidizing agent selected from the group consisting of K.sub.2 S.sub.2 O.sub.8, Na.sub.2 S.sub.2 O.sub.8, (NH.sub.4).sub.2 S.sub.2 O.sub.8 and H.sub.2 O.sub.2 so as to form a beta cobalt oxyhydroxide on the surface of the nickel hydroxide powder, mixing this oxide coated powder with beta cobalt oxyhydroxide powder, and filling this mixture in a three-dimensional porous substrate comprising an alkali-resistant metal.

A method of manufacturing an alkaline battery, comprising the steps of mixing a positive active material powder including as the principle component nickel hydroxide with a cobalt compound powder having a grain size no greater than 20 microns and a surface area of at least 10 m.sup.2 /g, filling this mixture in a three-dimensional porous substrate comprising an alkali-resistant metal, and then oxidizing with an oxidizing agent so as to form a beta cobalt oxyhydroxide on the surface of the nickel hydroxide powder, and assembling the prepared nickel plate together with a zinc, metal-hydride, or cadmium electrode.

A method of manufacturing an alkaline battery, comprising the steps of mixing a positive active material powder including as the principle component nickel hydroxide with a cobalt compound powder having a grain size no greater than 20 microns and a surface area of at least 10 m.sup.2 /g, oxidizing with an oxidizing agent so as to form a beta cobalt oxyhydroxide on the surface of the nickel hydroxide powder, and filling this oxide coated powder in a three-dimensional porous substrate comprising an alkali-resistant metal, and assembling the prepared nickel plate together with a zinc, metal-hydride, or cadmium electrode.

A method of manufacturing an alkaline battery, comprising the steps of filling a three-dimensional porous substrate comprising an alkali-resistant metal with a positive active material powder including as the principle component nickel hydroxide, and oxidizing with an oxidizing agent in a solution containing cobalt ions so as to form a beta cobalt oxyhydroxide on the surface of the nickel hydroxide powder, and assembling the prepared nickel plate together with a zinc, metal-hydride, or cadmium electrode.

A method of manufacturing an alkaline battery, comprising the steps of forming a solution of a positive active material powder including as the principle component nickel hydroxide and cobalt ions, oxidizing with an oxidizing agent so as to form a beta cobalt oxyhydroxide on the surface of the nickel hydroxide powder, and filling this oxide coated powder in a three-dimensional porous substrate comprising an alkali-resistant metal, and assembling the prepared nickel plate together with a zinc, metal-hydride, or cadmium electrode.

A method of manufacturing an alkaline battery, comprising the steps of mixing a positive active material powder including as the principle component nickel hydroxide with a beta cobalt oxyhydroxide, and filling this mixture in a three-dimensional porous substrate comprising an alkali-resistant metal, and assembling the prepared nickel plate together with a zinc, metal-hydride, or cadmium electrode.

A method of manufacturing an alkaline battery, comprising the steps of forming a solution of a positive active material powder including as the principle component nickel hydroxide and cobalt ions, oxidizing with an oxidizing agent so as to form a beta cobalt oxyhydroxide on the surface of the nickel hydroxide powder, mixing this oxide coated powder with a beta cobalt oxyhydroxide, and filling this mixture in a three-dimensional porous substrate comprising an alkali-resistant metal, and assembling the prepared nickel plate together with a zinc, metal-hydride, or cadmium electrode.