Active material for nickel electrode and nickel electrode having

Details Active material for nickel electrode and nickel electrode having Active material for nickel electrode and nickel electrode having

1996-08-01

1998-08-04

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429232, H01M 452

Patent

active

057891133

ABSTRACT:
An active material for a nickel electrode includes a double hydroxycarbonate having the formula Ni.sub.1-2x M.sub.2x (OH).sub.2 (CO.sub.3).sub.x .multidot.nH.sub.2 O, where 0.05<x<0.2, 0.05<n<4, and M is a Group IIIB element and containing 1-40 at % of a III B group element in a solid solution, based on the weight of nickel, and 1-20 wt % of a conductive enhancer which is at least one substance selected from the group consisting of Co and cobalt compound, based on the weight of the double hydroxycarbonate, so that a nickel electrode having a high capacity, increased life time, high charge/discharge velocity and enhanced utility of the active material can be produced. Alkaline secondary cells can be manufactured using the nickel electrode.

REFERENCES:
patent: 3912775 (1975-10-01), Broecker et al.
patent: 5514497 (1996-05-01), Furukawa
patent: 5518704 (1996-05-01), Kelkar et al.

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