| abstract |
Disclosed is an alkaline primary battery including: a bottomed cylindrical battery case; a cylindrical positive electrode having a hollow, being in contact with an inner wall of the battery case, and including manganese dioxide; a gel negative electrode being in the hollow of the positive electrode, and including zinc or a zinc alloy; a separator interposed between the positive electrode and the negative electrode; and an alkaline electrolyte. The positive electrode has an electric capacity C 1 and a height L 1, the negative electrode has an electric capacity C 2 and a height L 2 , the electric capacity C 1 and the electric capacity C 2 satisfy the relational expression (1): n 1.05≦ C 2 /C 1≦1.25 (1), andn n the height L 1 and the height L 2 satisfy the relational expression (2): n 0.85≦ L 2/ L 1≦ f ( C 2 /C 1) (2),n n where f(C 2 /C 1 )=−0.3058×C 2 /C 1 +1.3153. |