Electrochemical device and electronic device that applies same

An electronic device, comprising an electrochemical device, wherein the electrochemical device comprises:

• an electrolytic solution;
• an electrode assembly comprising a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate;
• wherein the first electrode plate, the separator, and the second electrode plate are stacked and wound;
• and in a direction of a winding central axis, the electrode assembly comprises a first end and a second end that are opposite to each other;
• the first electrode plate comprises a first current collector;
• the first current collector comprises a first active material region, and a first part connected to the first active material region along the direction of the winding central axis;
• in the direction of the winding central axis, the first part is located at an end of the first current collector and is closer to the first end than the second end;
• wherein, a porous layer is directly disposed on the first current collector in the first part, wherein the first part comprises a first bend located at the end of the first current collector, and the first bend is disposed at an angle substantially perpendicular to the winding central axis;
• a first active material layer is disposed on the first current collector in the first active material region;
• a first current collection plate disposed at the first end, and a second current collection plate disposed at the second end;
• and
• a housing configured to accommodate the electrolytic solution and the electrode assembly.