Pouch-typed Battery Cell Having Electrode Lead of Folded Structure

The present invention relates to a battery cell comprising: an electrode assembly consisting of a positive electrode, a negative electrode and a separation membrane; and a battery case having a sealing surplus part formed outside while the electrode assembly is embedded in a storage part. The battery case is in a plate-shaped structure having a first surface and a second surface facing the first surface. A plate-shaped electrode terminal protrudes via one side sealing surplus part of the battery case. The electrode terminal is curved in a first surface of second surface direction of the battery case on a protruding part and faces one surface of the sealing surplus part or the other surface facing the one surface.