| 摘要 |
PURPOSE: A welding device with double tips and a welding apparatus for a plate assembly of a battery using the same are provided to prevent corrosion due to an electrolyte and to have a low resistance value. CONSTITUTION: A welding device comprises a plate-shaped support plate (12) and a pair of tips (11). The support plate is made of a conductive material. The pair of tips is integrated with the support plate and is protruded upward from the top of the support plate. The pair of tips is formed into the shape of a column of which diameter is tapered upward. An inclined surface inclined downward from a peak point is formed on the top surface of the columns. |
