Non-sintered electrode with tridimensional support for secondary battery with alcaline electrolyte

A non-sintered electrode comprises a tridimensional porous conductor support containing an electrochemically active material, the support includes at least one first side connected to a connector and at least one second side essentially parallel to the first side and a means for preventing the displacement of the electrochemically active material arranged over the length of the second side. The m prevention means is chosen from a component incorporating a U-shaped folding arranged shoring up the second side, a surface coating and a treatment for modifying the texture of the support. An Independent claim is included for a secondary nickel-metal hydride electrochemical generator using this electrode as its positive electrode.