METHOD FOR MANUFACTURING OF OXIDE-NICKEL ELECTRODE Russian patent published in 2009 - IPC H01M4/26 H01M10/30 

FIELD: electricity.

SUBSTANCE: invention is attributed to electric engineering industry and can be used in chemical current source production. In this invention method consists in oxide-nickel electrode manufacturing when finely dispersed nickel powder is injected into nickel sponge, squeezing is performed, active mass is injected by means of saturation in nickel nitrate solution with subsequent treating in alkali liquor. In this process the sponge has thickness of 2.5÷3.5 mm, porosity of 80÷90% and pore size of 0.6÷0.8 mm; powder with particle size having bulk weight of 0.1÷0.5 g/cm³ is taken as finely dispersed nickel powder. The powder is injected in mixture with 1÷3% polyvinyl alcohol. Injected powder quantity is 1.8÷2.2 g/cm³. Squeezing is performed to thickness of 1.5÷2.0 mm, saturation in solution of nickel nitrate with density of 1.65÷1.7 g/cm³ is performed at temperature of 80÷85°C, pH-level of 0.5 and nickel concentration of 30÷35 g/l of solution. Treating in alkali liquor with density of 1.1 g/cm³ is performed at temperature of 70÷75 °C for 40÷60 min. After flushing and drying the electrode is sealed up with alkali-proof paper using 1÷3% polyvinyl alcohol and finally repressed to thickness of 0.8÷1.2 mm.

EFFECT: producing the electrode with increased discharge and resource characteristics.

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