Battery cell, and battery module, battery rack and energy storage system including the same

A battery cell, comprising:

• an electrode assembly;
• a pair of electrode leads electrically connected to the electrode assembly;
• a battery case configured to accommodate the pair of electrode leads, the battery case having a pair of end surfaces, a pair of side surfaces, an upper surface and a lower surface, the battery case having an accommodation space formed to accommodate the electrode assembly, the pair of electrode leads protruding from a respective one of the pair of end surfaces, the distance between the end surfaces defining a width of the battery cell;
• a tape configured to integrally cover the pair of side surfaces, the upper surface and the lower surface of the battery case, the tape extending over an entire length of the upper surface and an entire length of at least one of the pair of side surfaces, wherein the tape comprises:
• a main tape attached to the pair of side surfaces, the upper surface and the lower surface of the battery case, the main tape having a first end and a second end spaced from the first end, a bottom surface contacting the battery case and a top surface opposite the bottom surface;
• and
• a pair of auxiliary tapes attached to the top surface of the main tape, the pair of auxiliary tapes spaced from the first end and the second end of the main tape, the pair of auxiliary tapes cover the pair of side surfaces,
• wherein a height of the pair of side surfaces is less than a width of the top surface between the pair of side surfaces,
• wherein the main tape is integrally attached to the pair of side surfaces, the upper surface and the lower surface of the battery case;
• and
• wherein the pair of auxiliary tapes are attached to the main tape and arranged to face the upper surface and the lower surface of the battery case with the main tape being interposed therebetween when the main tape is attached to the battery case.