| 摘要 |
Disclosed herein is an electrode plate device comprising a pair of electrode plates constructed in a structure in which the electrode plates include current collectors made of different materials (a, b), electrode taps are formed at the respective current collectors, and an electrode active material is applied to at least one major surface of each current collector excluding the electrode taps, wherein a metal piece made of the material (b) is welded to the end of the current collector made of the material (a) to form the electrode tap, and the electrode active material is applied to the current collector after the metal piece is welded to the current collector. A method of manufacturing the same is also disclosed. The electrode plate according to the present invention has the effect of improving the weldability between the cathode terminal and the anode terminal when two battery cells, which include the electrode plate, are connected in series with each other to manufacture a battery module. In addition, the electrode plate according to the present invention has the effect of improving the corrosion resistance in an atmosphere containing salt. |
