Secondary Battery Having Improved Capacitance and Safety

The present invention relates to a secondary battery that is laminated a plurality of electrode plates with a separator having a through state and electrode assembly of the structure to interconnect these electrode tabs are embedded in the battery case, each electrode plate has mutually connect them in parallel to to tab (tab for connection between the electrodes) are is formed, one or more positive electrode plates and negative electrode plates of which has tabs for connection to an electrode lead in addition to tabs for connection between the electrode added (electrode for a lead connection tab) is formed in which, for the connection between the electrode tab and the electrode lead tab is connected to provide a secondary battery is configured to include an electrode assembly and such an electrode assembly, characterized in that formed on the same side. Thus, the electrode assembly according to the invention may have a high capacity compared to the same standard to make the most of the space in the battery case, a fall or an impact is applied when the mobile is suppressed by preventing an internal short circuit, further the safety of the battery there is to improve effectiveness.