ELECTRODE ASSEMBLY COMPRISING ELECTRODE UNITS WITH EQUAL WIDTHS AND DIFFERENT LENGTHS, AND BATTERY CELL AND DEVICE COMPRISING SAME

There are provided an electrode assembly, a battery cell including the electrode assembly, and a device including the electrode assembly. The electrode assembly includes a combination of two or more electrode units having the same width and different lengths, wherein the electrode units are stacked so that a stepped portion is formed between the electrode units, and electrodes having different polarities face each other at an interface between the electrode units.