Abstract: There is proposed a method of impregnation of cermet electrodes of an alkaline storage battery, which comprises the steps of reeling a sintered band stock together with a spacer element arranged throughout the entire length and width of the band stock and providing an appropriate space between the turns of the band stock, and placing said reeled band stock together with the spacer element into active solutions.

Abstract: An apparatus for effecting impregnation of cermet electrodes of an alkaline storage battery, according to the invention, comprises a tank with active solutions which accommodates a member from which electrode stock members are suspended. The stock members are made as a set of forms, each being used for a band stock to be reeled thereon together with a spacer element. The spacer element is adapted to form an appropriate space between the turns of the band stock.The spacer element is made of individual interconnected frames forming a chain of a specified length and provided with projections on both sides of longitudinal and transverse strips constituting a frame, so as to provide circulation of an active solution between the turns of the band stock.

Abstract: The method disclosed consists of applying a plain tubular blank in polytetrafluorethylene to a cylindrical mandrel of a diameter providing for a clearance between said blank and mandrel corresponding to the depth of the corrugations to be formed. The blank is retained at its ends concentrically with the mandrel. A wire is then wound in a helical path around the blank under a tension ensuring the forming of helical corrugations, the blank being additionally retained at its outside surface within a zone preceding the zone wherein the corrugations are being formed. On forming the corrugations all the way along the surface of the blank, the product is heat treated at a temperature between 250 and 300.degree. C.