Battery cell having electrode assembly of staggered array structure

A battery cell configured to have a structure in which two or more electrode assemblies, each comprising positive electrodes, negative electrodes, and separators disposed respectively between the positive electrodes and the negative electrodes, are mounted in a battery case, wherein

• the electrode assemblies are stacked such that electrode terminals of the electrode assemblies are aligned to overlap in a vertical direction,
• one side lower edge of an upper one of the electrode assemblies is disposed in contact with a top surface of a lower one of the electrode assemblies, and one side upper edge of the lower electrode assembly is disposed in contact with a bottom surface of the upper electrode assembly at an interface between the electrode assemblies such that the upper electrode assembly is offset relative to the lower electrode assembly,
• the battery case has an internal shape corresponding to an external shape of the stacked electrode assemblies, and
• the electrode assemblies are configured to have a combination of two different electrode assembly types selected from among a jelly-roll type electrode assembly, a stacked type electrode assembly, a stacked/folded type electrode assembly, or a laminated and stacked type electrode assembly.