SOLDERING CONNECTOR, AND BATTER MODULE AND BATTERY PACK INCLUDING SAME

摘要

A soldering connector, according to the present invention, electrically connects a plurality of unit cells, and comprises a lead-free alloy containing tin (Sn) and copper (Cu). According to the present invention, safety of using a secondary battery is secured by rapidly disconnecting the electrical connection between the unit cells, which comprise a battery module, at a relatively low temperature and current range, when overheating occurs due to malfunction of the secondary battery.