Nickel positive electrode for alkaline rechargeable batteries an

Details Nickel positive electrode for alkaline rechargeable batteries an Nickel positive electrode for alkaline rechargeable batteries an

1997-08-21

1999-10-19

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

4292181, H01M 432

Patent

active

059686847

ABSTRACT:
In the paste type nickel positive electrode prepared by filling pores of a metal nickel plaque made of three-dimensional high porous sheet, or coating both sides or one side of a plaque made of either perforated nickel sheet or nickel plated steel sheet, with a paste type active material mainly composed of nickel hydroxide, by adding particles of cobalt hydroxide having the specific surface area of at least 10 m.sup.2 /g, average particle size of 1.7 microns or more, and content of fine particles with particle size of 1.0 micron or less of 20% or less, the utilization of positive electrode active material is enhanced, and by using this nickel positive electrode, the alkaline rechargeable battery, in particular, the nickel-metal hydride alkaline battery is enhanced in capacity and extended in service life.

REFERENCES:
patent: 5681673 (1997-10-01), Hattori et al.
patent: 5744259 (1998-04-01), Ohta et al.
patent: 5827494 (1998-10-01), Yano et al.

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