Paste-type nickel electrode for an alkaline storage battery and an alkaline storage battery containing the electrode
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United States of America Patent
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Mar 7, 1995
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N/A
app pub date -
Jul 22, 1993
filing date -
Jul 28, 1992
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Abstract
A paste-type nickel electrode for an alkaline storage battery and an alkaline storage battery containing the electrode are described. In one embodiment, the paste-type nickel electrode contains a nickel filamentary powder electroconductive agent having a network of three-dimensional chain structures with an average diameter of equal to or less than about 1.3 .mu.m. When the paste-type nickel electrode is used as the positive electrode of an alkaline storage battery, a high capacity, long-life alkaline storage battery is obtained. In a second embodiment, an improved alkaline storage battery is obtained through the provision of a paste-type nickel positive electrode plate containing at least one of a Co powder and a CoO powder as an electroconductive agent and an alkaline electrolyte solution having an alkaline concentration of 35 wt. % or greater. In a most preferred embodiment, this latter alkaline storage battery additionally contains a nickel powder electroconductive agent having a network of three-dimensional chains with an average diameter of 1.3 .mu.m or less in the positive electrode.
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