Wound-type cell

A wound-type cell, comprising:

• a first electrode plate having a first current collector and a first active material layer coated on a surface of the first current collector;
• a second electrode plate having a second current collector and a second active material layer coated on a surface of the second current collector, and a second winding start end of the second electrode plate being positioned at an inner side of a first winding start end of the first electrode plate in a thickness direction;
• a separator provided between the first electrode plate and the second electrode plate to separate the first electrode plate from the second electrode plate;
• a first electrode tab electrically connected to the first current collector;
• and
• a second electrode tab electrically connected to the second current collector;
• wherein
• a third winding start end of the separator is positioned at an outer side of the second winding start end of the second electrode plate in a length direction, extends along a direction away from a second end of the second winding start end and is not folded back.