Secondary battery and electronic device

An electronic device, wherein the electronic device comprises:

• an electrode assembly, a packaging bag, and an insulation adhesive;
• and the packaging bag further comprises:
• a main portion, wherein an accommodation cavity is provided in the main portion, the accommodation cavity accommodates the electrode assembly, the main portion comprises a first sidewall and a second sidewall disposed opposite to each other along a first direction, and the first direction is a thickness direction of the secondary battery;
• a sealing portion, wherein the sealing portion is connected to the main portion and seals the accommodation cavity, the sealing portion comprises a first side seal edge, and the first side seal edge is disposed on one side of the main portion in a second direction perpendicular to the first direction;
• the first side seal edge comprises a first connecting portion and a second connecting portion disposed in sequence, the first connecting portion is connected to the main portion, the second connecting portion is bent toward the main portion relative to the first connecting portion, an angle θ is formed between the first connecting portion and the first sidewall, satisfying:
• 0°<θ<90°;
• along the first direction, a thickness of the main portion is H, and along an extension direction from an end at which the first connecting portion is connected to the main portion to an end at which the first connecting portion is away from the main portion, a width of the first connecting portion is T1, wherein H<T1;
• and
• the insulation adhesive covers one end of the second connecting portion, the one end of the second connecting portion being the end facing the main portion;
• the insulation adhesive bonds the first connecting portion to the second connecting portion, and the insulation adhesive further bonds the second connecting portion to the main portion.