Electrode Assembly and Battery Cell Including Same

An electrode assembly in which electrodes and separator sheet portions of a separator sheet are alternately stacked, wherein:

• the electrodes comprises a first electrode and a second electrode,
• the separator sheet has a zigzag shape formed by being folded at least twice,
• a length of the second electrode is shorter than a length of the first electrode,
• a side surface wrapped by the separator sheet between opposing side surfaces of the first electrode and a side surface wrapped by the separator sheet between opposing side surfaces of the second electrode are respectively spaced apart from the separator sheet,
• an opposite side surface opposite of the side surface wrapped by the separator sheet between the opposing side surfaces of the first electrode protrudes further than the separator sheet from the side surface wrapped by the separator sheet between the opposing side surfaces of the second electrode, and
• a separation distance between the separator sheet and the side surface of the second electrode is equal to or shorter than a distance by which the first electrode protrudes further than the second electrode from the side surface wrapped by the separator sheet between the opposing side surfaces of the second electrode.