TECHNOLOGY FOCUS - ELECTRONICS - Preferred Condition: The cathode contains surfactant which satisfies the condition (A) or (B). The condition (A) is the surfactant has a phosphoric acid group as hydrophilic group in a molecule and at least one hydrocarbon group as a hydrophobic group. The surfactant does not contain polyoxyethylene group. The condition (B) is surfactant has phosphoric acid group and polyoxyethylene group as hydrophilic group in a molecule and at least one hydrocarbon group as a hydrophobic group. Preferred Properties: The hydrocarbon group in condition (A) has total-carbon atom-numbers of 1-6. The hydrocarbon group in condition (B) has total-carbon atom-numbers of 1-4. The alkaline dry battery has AA size. The cathode has gas-evolution velocity of 2.5 or less mu l/g.day, gas-evolution velocity of 4 or less mu l/g.day during addition of iron (10 ppm) and gas-evolution velocity of 3.8 or less mu l/g.day during addition of nickel (10 ppm).    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The content of surfactant is 0.05-1 wt.pts with respect to 100 wt.pts of zinc-alloy powder. The zinc-alloy powder contains bismuth (30-250 ppm). The cathode further contains gelatinizer. The content of zinc-alloy powder is 170-200 wt.pts with respect to 100 wt.pts of alkaline electrolyte solution. The zinc-alloy powder contains particles (5-45 wt.%). The particles have particle size of 75 microns or less. The layer containing nickel has average thickness of 0.05-1 microns. The layer contains nickel, nickel-iron alloy, nickel-tin alloy or nickel-cobalt iron. Preferred Process: The battery case performs barrel plating to inner surface of metal casing having can shape is obtained by pressing steel plate or nickel-plating steel plate.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The surfactant is phosphoric acid ester or its alkali metal salt and polyoxyethylene alkyl-ether phosphoric acid ester or its alkali metal salt. The surfactant is chosen from group containing alkali compound of formula (I-III).R1=1-4C hydrocarbon;R2=-CH2-CH2- or CH2(CH3)CH2-;n=1-8;X,Y'=H, sodium or potassium;R3,R4=H or 1-6C hydrocarbon;andR5=1-6C hydrocarbon. Preferred Definitions:    R1,R3=CmH2m+1;    m=1-4, preferably 0-6;    R4,R5=CnH2n+1;    n=1-6, preferably 0-6;and    m+n=1-6.    EXAMPLE - Anode contains manganese dioxide and graphite, cathode is obtained by heating zinc at 500 degrees C to molten state and aluminum (in ppm) (5), indium (250), bismuth (200) were added and heated zinc-alloy powder. Further, surfactant (0.1 wt.pts) and gelatinizer (1.5 wt.pts) were added and heated, and sodium polyacrylate as alkali electrolyte solution were assembled to produce alkaline dry battery. The alkaline dry battery had excellent discharge performance, leaking resistance and low voltage drop during discharge.