Cylindrical battery and electronic device

An electronic device, wherein the electronic device comprises the cylindrical battery, wherein the battery comprises:

• a jelly-roll electrode assembly, wherein the electrode assembly comprises a positive electrode plate;
• the positive electrode plate comprises a positive current collector, a positive active material layer, and an insulation layer;
• both the positive active material layer and the insulation layer are disposed on at least one side of the positive current collector;
• the positive current collector comprises a first region covered by the positive active material layer, a second region covered by the insulation layer, and a third region covered by neither the positive active material layer nor the insulation layer;
• and the second region is located between the first region and the third region in a width direction of the positive current collector;
• and
• in a winding direction of the electrode assembly, the insulation layer comprises a first part having a first width W1 and a second part having a second width W2, satisfying:
• W1+2 mm≤W2≤W1+10 mm, and the second part is located on an outer side of the jelly-roll electrode assembly.