Battery system

A battery system comprising:

• a plurality of battery cells electrically connected to each other;
• cell voltage sensing lines connected to ends of the battery cells, respectively;
• a battery management system sensing voltages of the battery cells through the respective cell voltage sensing lines;
• fuses connected to the cell voltage sensing lines, respectively, to cut off a flow of an excessive current exceeding a rated current when the excessive current flows through the cell voltage sensing lines due to a short circuit between the cell voltage sensing lines;
• and
• emergency preventing switches connected to the cell voltage sensing lines, respectively, so as to be turned on at the time of sensing the voltage of the battery cell, and turned off in a case when the short circuit between the cell voltage sensing lines occurs,
• wherein the emergency preventing switch is connected between the fuse and the battery management system to be turned off when any fuse provided in the corresponding line is first disconnected when a short circuit occurs between the cell voltage sensing lines.