| 摘要 |
A secondary battery (100), including an electrode assembly (120) including a first electrode plate (121), a second electrode plate (122), and a separator (123, 124) disposed between the first and second electrode plates, wherein the electrode assembly includes a first electrode tab (127) including a plurality of stacked first unit tabs (127a-c) protruding from the first electrode plate; and a second electrode tab (128) including a plurality of stacked second unit tabs (128a-c) protruding from the second electrode plate The first or second electrode tab may have a width (W1, W2), the width being greater than a width of each of the first unit tabs. For a first electrode plate, second electrode plate, and separator that are wound, the first or second unit tabs may be stacked in a radial direction on one side of the electrode assembly relative to a winding center line (X) thereof. |
