Knobbe Martens Olson & Bear LLP
Electrode assembly and rechargeable battery having electrode tab
An electrode assembly and a rechargeable battery including the electrode assembly are disclosed. In one aspect, the electrode assembly includes a first electrode and a second electrode that are wound with a separator placed therebetween. The second electrode includes a first coated portion coated with an active material and a plurality of first electrode tabs T1-Tn protruding outwardly from the first coated portion, wherein n is a natural number greater than 2. The first electrode, when spread in a plane form, includes first to nth portions on which the first electrode tabs T1-Tn are respectively formed, wherein the first and nth portions of the first electrode respectively define the innermost and outermost portions thereof. The distance between the first electrode tab Tn placed at the outermost portion and the first electrode Tn−1 placed at the second outermost portion of the first electrode is less than any of the distances between two adjacent ones of the other first electrode tabs T1-Tn−1.
Samsung SDI Co., Ltd.
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Yu-Na Jang-Ho
Kim Yoon