| abstract |
A battery is disclosed and includes: a positive electrode assembly including a positive electrode substrate, a positive electrode active material coated at one surface of the positive electrode substrate, and a positive electrode tab attached to the one surface of the positive electrode substrate; a negative electrode An electrode assembly comprising a negative electrode substrate, a negative electrode active material coated at one surface of the negative electrode substrate, and a negative electrode tab attached to the one surface of the negative electrode substrate; and between the positive electrode assembly and the negative electrode assembly A separator between the negative electrode substrates, wherein the negative electrode active material is not coated in the first region facing the positive electrode tab at the one surface of the negative electrode substrate, and the negative electrode active material is not coated at the one surface of the negative electrode substrate. In a second region adjacent to the first region in the length direction of the positive electrode tab, the negative electrode active material is coated. |