Positive electrode current collector and manganese dry battery using the same

A positive electrode current collector for a manganese dry battery comprising:

• a carbon rod;
• and either one of a paraffin wax containing hydrocarbon whose molecular weight is 300 to 500 and a microcrystalline wax containing hydrocarbon whose molecular weight is 500 to 800, which is impregnated into said carbon rod, wherein only said wax is impregnated into said carbon rod,
• characterized in that the endothermic amount of said paraffin wax or said microcrystalline wax per 1 g of said positive electrode current collector obtained by differential scanning calorimetry at 20 to 45° C. is not more than 1.0 J/g, and
• by satisfying the relational expression:
• 90<Y+50.5X<100
• wherein X is the density (g/cm3) of said carbon rod, and Y is the entire endothermic amount (J/g) of said positive electrode current collector obtained by differential scanning calorimetry at 20 to 100° C., and Y>0, and
• wherein said carbon rod has a density of 1.55 to 1.65 g/cm3.