SECONDARY BATTERY AND ELECTRIC DEVICE

A secondary battery includes an electrode assembly. The electrode assembly includes a first electrode plate, where the first electrode plate is provided with a first electrode terminal. The first electrode plate has a first edge, a second electrode plate has a second edge. Along the first direction, a first portion comprises the first electrode terminal and a part of the electrode assembly that is located between the first edge and the second edge, a second portion comprises the first electrode terminal and a part of the electrode assembly that is located on a side of the first edge facing away from the second edge. A total thickness of the first portion is less than a total thickness of the second portion. A projection of the first insulating member covers a projection of a portion of the first electrode terminal extending beyond the second edge.