| 摘要 |
Provided is a cylindrical alkaline battery in which the packing density Dc of the manganese dioxide in the positive electrode is 2.8 to 3.0 g/cm3 and the packing density Da of zinc or a zinc alloy in the negative electrode is 2.0 to 2.3 g/cm3. The packing density Dc of the manganese dioxide, the packing density Da of the zinc or zinc alloy, the thickness Tc of the positive electrode in a radial direction, and the thickness Ta of the negative electrode in a radial direction satisfy one of the following relational formulas (1) to (3):−1.975×(Tc/Ta)+2.745<Dc/Da<−1.690×(Tc/Ta)+2.734 (1)−11.652×(Tc/Ta)2+14.470×(Tc/Ta)−3.095<Dc/Da<11.652×(Tc/Ta)2−18.420×(Tc/Ta)+8.585 (2)−8.895×(Tc/Ta)2+12.864×(Tc/Ta)−3.258<Dc/Da<8.895×(Tc/Ta)2−16.244×(Tc/Ta)+8.726 (3). |
