A paste type nickel electrode for an alkaline storage...

Details A paste type nickel electrode for an alkaline storage... A paste type nickel electrode for an alkaline storage...

H - Electricity

01

M

H01M 4/24 (2006.01) H01M 4/32 (2006.01) H01M 4/62 (2006.01) H01M 10/26 (2006.01) H01M 10/34 (2006.01)

Patent

CA 2101312

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 µm. 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 µm or less in the positive electrode.

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