BATTERY PROTECTION MODULE CONNECTING STRUCTURE

PROBLEM TO BE SOLVED: To provide a battery protection module connecting structure in which the battery and the battery protection module of the battery can be steadily connected in one body at low cost. SOLUTION: The circuit board (1) which composes a battery protection module and the electrode terminal (71) of the battery (7) are connected through a connecting terminal(5) made of an aluminum plate (51) provided with a tin plated film (52) on one side. Specifically, the tin plated film side (5a) of the connection terminal (5) is jointed by soldering with the circuit board (1) of the battery protection module, and the aluminum exposed side (5b) is jointed by welding with the electrode terminal(71) of the battery (7). Further on top of that, a zinc plated film (53) is provided on one side of the connection terminal(5), and a nickel plated film (54) is provided laminated on the zinc plated film (53), and further, a tin plated film (52) is provided laminated on the nickel plated film (54).