Secondary battery and electronic apparatus

A secondary battery, comprising:

• an electrode assembly, comprising a positive electrode plate, a separator, a negative electrode plate and a first insulator;
• and
• a housing accommodating the electrode assembly, the housing comprising an aluminum layer;
• wherein, the secondary battery is arc shaped;
• wherein the separator is arranged between the positive electrode plate and the negative electrode plate, an electrode plate on the outermost layer of the electrode assembly is a first positive electrode plate, an electrode plate adjacent to the first positive electrode plate is a first negative electrode plate;
• along an arc extension direction of the secondary battery, the first negative electrode plate has a first region beyond an edge of the first positive electrode plate, the first insulator is arranged on a first separator for separating the first negative electrode plate and the first positive electrode plate;
• and viewed along a thickness direction of the electrode assembly, the first insulator and the first region at least partially overlap.