BATTERY MODULE AND THE MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A battery module is provided to secure strong bond strength although the welding between a terminal and a terminal plate, or the terminal plate and a bus bar is performed between different metals. CONSTITUTION: A battery module comprises: a plurality of chargeable batteries including a positive electrode terminal and a negative electrode terminal with different materials; a bus bar which electrically connects the batteries; a first terminal plate forming a first welding part to the positive electrode terminal to install the bus bar; and a second terminal plate forming a second welding part(200) to the negative electrode terminal in order to install the bus bar.