US Patent 11367928 Electrode assembly and method for manufacturing the same

An electrode assembly including an electrode stack including a plurality of radical units including an electrode and a separator and having a structure in which the plurality of radical units are sequentially stacked, wherein at least a portion of a circumference of the electrode stack is surrounded by the separator, a curved surface having a curvature radius is formed on a top or bottom surface of the electrode stack, and the separator surrounding at least the portion of the circumference of the electrode stack surrounds the curved surface formed on the electrode stack to maintain a relative distance between the radical units adjacent to each other is provided. A method of forming the electrode assembly is also provided.