| abstract |
An electrode assembly including a positive electrode current collector, a first separator, a negative electrode including a negative electrode current collector, and a second separator sequentially stacked, wherein the positive electrode current collector and the negative electrode current collector each have uncoated portions on both sides. , The first separator includes a first substrate including polyolefin-based resin particles and an inorganic layer located on at least one surface of the first substrate and including an inorganic material, and the second separator includes a second material comprising polyolefin-based resin particles It includes a base material, at least one portion of the outermost portion and the center portion of the electrode assembly, the uncoated portion of the positive electrode current collector, the first separator, the uncoated portion of the negative electrode current collector, and the second separator are sequentially stacked. A lithium secondary battery is provided. |