abstract |
Provided are a jelly-roll type electrode assembly and a secondary battery having the same, the jelly-roll type electrode assembly comprising a first electrode, a second electrode, and a separator which are wound together, the separator being interposed between the first and second electrodes, wherein the first electrode comprises: an uncoated part upon which active materials are not applied; and a first electrode tab attached to the uncoated part, and wherein at least two layers of separators are wound between the first electrode tab and the second electrode. |