| abstract |
This battery is provided with: a power generation element having a through hole; and a cylindrical can accommodating the power generation element and having, on the peripheral surface thereof, at least one thin wall section. The ratio of the hole diameter of the through hole with respect to the outer diameter of the power generation element is 17% or less. The thin wall section is provided in one or both of a region ranging from 0% to 30%, inclusive, and a region ranging from 70% to 100%, inclusive, from one end of the peripheral surface. |