SECONDARY BATTERY, ELECTRONIC EQUIPMENT, AND ELECTRIC TOOL

A secondary battery improves current collection efficiency. A positive electrode current collector plate and a negative electrode current collector plate each include weld groups that are provided radially. A positive electrode active material uncovered part includes a first weld that is nearest to a winding termination end of a positive electrode foil, and a second weld that is second nearest to the winding termination end of the positive electrode foil after the first weld. A negative electrode active material uncovered part includes a third weld that is nearest to a winding termination end of a negative electrode foil, and a fourth weld that is second nearest to the winding termination end of the negative electrode foil after the third weld. The secondary battery satisfies Expressions (1) and (2) below: 0≤LC1≤LC2 (1) 0≤LA1≤LA2 (2) where LC represents a distance from the winding termination end of the positive electrode foil to the first weld in millimeters, LC represents a distance from the first weld to the second weld in millimeters, LA represents a distance from the winding termination end of the negative electrode foil to the third weld in millimeters, and LA represents a distance from the third weld to the fourth weld in millimeters.