Cylindrical Battery, Battery Pack and Vehicle

Disclosed is a cylindrical battery, and a battery pack and a vehicle including the same. The cylindrical battery includes an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference; and a cylindrical battery housing accommodating the electrode assembly. When a first fan-shaped region surrounded by a first straight line and a second straight line passing from a center of the core through a core side end of the first electrode and a core side end of the second electrode, respectively, and the outer circumference is defined as a stress vulnerable region, and a second fan-shaped region surrounded by a third straight line and a fourth straight line passing from the center of the core through an outer circumference side end of the first electrode and an outer circumference side end of the second electrode, respectively, and the outer circumference is defined as a stress amplification region, the electrode assembly has a winding structure in which among the stress amplification region, at least the outer circumference side end of the first electrode is spaced apart from the inside of the stress vulnerable region along a circumferential direction.