Safety component by fuse at high voltage battery sensing line

1. An apparatus for preventing a secondary accident by short of sensing lines in a high voltage battery using a fuse, comprising:

a battery pack including a plurality of battery modules, each battery module including a plurality of battery cells;

a battery management system (BMS) for monitoring and controlling voltage of each battery cell provided in each battery module to monitor the status of each battery cell;

sensing lines connected between the battery module and the battery management system to sense voltage of each battery cell of each battery module; and

a passive safety device connected to the sensing lines and connected in series to a terminal of each battery cell of the battery module, wherein the passive safety device is configured to operate when a short accident that a closed circuit is formed in the sensing line occurs during the BMS being not operated.

2. The apparatus of claim 1 , wherein the passive safety device is realized as a fuse or a positive temperature coefficient (PTC).

3. The apparatus of claim 1 , wherein the passive safety device is attached near the battery module.

4. The apparatus of claim 1 , which is applied to a vehicle using a lithium ion high voltage battery.

5. The apparatus of claim 1 , wherein the sensing lines are formed of wires having a thickness of 0.5 sqmm or less.