METHOD FOR MANUFACTURING FOIL ELECTRODE FOR CADMIUM-NICKEL ACCUMULATOR Russian patent published in 2009 - IPC H01M4/24 H01M10/30 

FIELD: electricity.

SUBSTANCE: invention is attributed to the field of electric engineering and can be used in manufacturing cadmium or nickel electrodes for alkaline accumulators. In this invention method for manufacturing foil electrode for cadmium-nickel accumulator includes rolling of nickel powder into foil, foil baking in hydrogen atmosphere and active mass infusion. In this process carbonyl nickel powder is taken as nickel powder, the powder is annealed at temperature of 700÷800°C for 30-60 min, obtained powder is milled and sieved. The powder is rolled in cylinders at pressure of 250 kg/cm²±5% until thickness of 40÷80 micron and porosity of 40÷60%, sintering is performed at temperature of 600÷700°C for 1 hour ±10%. Active mass infusion is performed by means of foil saturation in cadmium or nickel salts depending on electrode type and sedimentation in alcali liquor. After preset active mass quantity has been infused into electrode, the electrode is flushed out and dried.

EFFECT: increase in specific electric characteristics.

2 cl, 1 ex