Alkaline rechargeable battery with medium-length carbon fibers

Details Alkaline rechargeable battery with medium-length carbon fibers Alkaline rechargeable battery with medium-length carbon fibers

2007-02-06

2007-02-06

Crepeau, Jonathan (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S232000

Reexamination Certificate

active

10429920

ABSTRACT:
The invention relates to an alkaline rechargeable battery for storing electrical energy having a positive electrode which, as the substrate material, has a nickel foam strip, a nickel strip or nickel-plated perforated or unperforated steel strip and a pasty active material, which is composed mainly of nickel hydroxide and contains particles of cobalt hydroxide, cobalt monoxide as well as a plastic binding agent, a negative electrode and a separator which is arranged between the electrodes, in a closed housing. As the conductive agent, the positive active material contains 9 to 20% by weight of a graphite mixture, which is composed of more that 70% of fibrous graphite with a fiber length of 10 to 35 μm and a fiber diameter of 3 to 8 μm, and, in addition to this, spherical graphite with a particle diameter d50of 3 to 8 μm.

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