Abstract: The invention concerns a storage battery (10), comprising one or several cells enclosed in a housing (11), each cell containing electrolyte and monopolar and bipolar plates (12,13) coated with positive and/or negative active mass and separated by means of separator plates (14), and requisite electrically conductive connectors connecting the plates and/or cells. The wall separating or sealing off each cell from adjacent cells and/or from the housing (11) has been formed by filling the spaces around and/or in the interstices of the plate stacks with an electrically insulating and electrolyte-impermeable substance (19) which has been cured directly in situ for forming tightly sealing and/or insulating walls.

Abstract: Method and apparatus for manufacturing plate assemblies for bipolar or semibipolar storage batteries containing bipolar and monopolar plates having positive and/or negative active masses. Forming apparatus is disposed to form on an electrically insulating support material, a plate frame web containing longitudinally continuous and transversely spaced plate frame blanks containing electrically conductive material. Adding apparatus is disposed to add onto the plate frame web containing the plate frame blanks, longitudinally continuous and transversely spaced zones constituted by alternative positive and negative active masses. Cutting apparatus are disposed to cut by transverse and longitudinal cutting lines, plate assembly blanks containing bipolar and/or monopolar plates from the plate frame web containing the active mass zones.