Secondary battery

Provided is a secondary battery, the secondary battery comprising: a cylindrical can; an electrode assembly in the cylindrical can and including a plurality of first base tabs extending from one side of the electrode assembly along a longitudinal direction of the cylindrical can and a plurality of second base tabs extending from an opposite side of the electrode assembly along the longitudinal direction of the cylindrical can; a cap assembly for sealing the cylindrical can; a first collector plate electrically connecting the plurality of first base tabs to the cylindrical can; and a second collector plate insulated from the cylindrical can and electrically connecting the plurality of second base tabs to the cap assembly. 提供了一种二次电池，所述二次电池包括：圆柱形罐；电极组件，在圆柱形罐中并且包括沿着圆柱形罐的纵向方向从电极组件的一侧延伸的多个第一基底接线片以及沿着圆柱形罐的纵向方向从电极组件的相对侧延伸的多个第二基底接线片；盖组件，用于密封圆柱形罐；第一集流板，将所述多个第一基底接线片电连接到圆柱形罐；以及第二集流板，与圆柱形罐绝缘并且将所述多个第二基底接线片电连接到盖组件。