| 摘要 |
PURPOSE: A secondary battery is provided to prevent short circuit at high temperatures, and to improve productivity because of facilitating alignment of a positive electrode and a negative electrode. CONSTITUTION: A secondary battery(10) comprises an electrode assembly(100). The electrode assembly comprises: a first electrode plate consisting of a first active material-coated layer and a first uncoated part; a second electrode plate consisting of a second active material-coated layer, and a second uncoated part; and a separator, in which the first electrode plate and the second plate are laminated and arranged, inserted between the first electrode plate and the second electrode plate. The first uncoated plate comprises an insulating member in a part corresponding with the second electrode plate. The first and the second plates are respectively expanded from the first and the second active material-coated layer. |
