Electrochemical device and electronic device

An electronic device, comprising an electrochemical device, wherein the electrochemical device comprises an electrode assembly and a first conductive plate, the electrode assembly comprises a first electrode plate, the first electrode plate comprises a first current collector and a first conductive material layer, the first current collector comprises a first surface, and the first conductive material layer is disposed on the first surface;

• wherein,
• the first conductive material layer is provided with a first opening, the first surface comprises a first region, the first region is configured to be a region of the first surface exposed at the first opening, and the first conductive plate is connected to the first region;
• and
• when viewed from a first direction, the first electrode plate comprises a first end edge and a second end edge disposed opposite to each other in a second direction, and the first electrode plate is provided with a first recess at the first end edge;
• when viewed from the first direction, the first recess is spaced apart from the first region;
• when viewed from the second direction, the first recess overlaps with the first region;
• when viewed from the first direction, the first conductive plate covers a part of the first region, the first conductive plate covers a part of the first conductive material layer, and the first conductive plate covers a part of the first recess;
• the first direction is perpendicular to the first region;
• and the second direction is perpendicular to the first direction.