NOVELTY - A positive electrode plate for alkaline storage battery, comprises a strip-shaped porous metal substrate (22) and a material mixture filled in the substrate. The substrate has an unfilled portion (24) where the material mixture is not filled along at least one of two longitudinal sides of the substrate. The substrate has a weight per unit area of 150-350 g/m2. The material mixture comprises an active material and an elastic polymer.    USE - The positive electrode plate is used for alkaline storage battery (claimed) used as power sources for portable equipment, power tools, and hybrid electric vehicles.    ADVANTAGE - Since a material mixture containing an active material and an elastic polymer is used with a porous metal substrate having a low weight per unit area, it is possible to produce a flexible positive electrode plate with a high capacity whose current collection network is unlikely to be broken and which is less likely to produce metal burrs and cracks at a lower cost than conventional techniques. The positive electrode plate makes it possible to produce an alkaline storage battery capable of providing a large discharge capacity even when discharged at a large current and having high active material utilization rate and excellent charge/discharge cycle characteristics at a lower cost than conventional techniques. The material mixture paste can be filled into the porous metal substrate efficiently, which reduces the loss of the active material. A precise definition of the interface between the filled portion and the unfilled portion can be achieved, which contributes to provide a good welding condition between the unfilled portion and a current collector plate.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for producing a positive electrode plate for an alkaline storage battery, comprising:    (1) controlling the thickness of an original material made of a porous metal having a weight per unit area of 150-350 g/m2 to form a porous metal substrate;    (2) filling a material mixture paste (23) comprising an active material and an elastic polymer into the substrate in a stripe pattern to form at least one filled portion and at least one unfilled portion;    (3) drying the substrate filled with the material mixture paste;    (4) rolling the dried substrate filled with the material mixture paste to form an electrode plate; and    (5) cutting the electrode plate into a predetermined size.    DESCRIPTION OF DRAWING(S) - The figure is an oblique view of a die coater.    Die nozzles (21)    Strip-shaped porous metal substrate (22)    Material mixture paste (23)    Unfilled portion (24)