Battery module with fusible conductors
A battery module including at least one battery cell, a shunt resistor above a safety vent of the battery cell, and a plurality of fusible conductors connecting the shunt resistor to a charging/discharging current path. The shunt resistor measures a charging/discharging current of the battery cell. The fusible conductors include a material which melts when heated by a gas discharged through the safety vent.
1. A battery module, comprising:
at least one battery cell;
a shunt resistor above a safety vent of the battery cell, the shunt resistor to measure a charging/discharging current of the battery cell; and
at least one fusible conductor connecting the shunt resistor to a charging/discharging current path, the at least one fusible conductor including a material which melts when heated by a gas discharged through the safety vent.
2. The battery module as claimed in claim 1 , further comprising:
a protective circuit between the battery cell and the shunt resistor.
3. The battery module as claimed in claim 2 , further comprising:
a conductive pattern on the protective circuit and including the charging/discharging current path, wherein the at least one fusible conductor connects the shunt resistor to the conductive pattern.
4. The battery module as claimed in claim 2 , wherein the protective circuit includes:
a circuit board including an opening,
wherein the shunt resistor directly faces the safety vent through the opening.
5. The battery module as claimed in claim 4 , wherein the at least one fusible conductor is adjacent to the opening.
6. The battery module as claimed in claim 2 , wherein:
the battery module includes first and second battery cells,
the first and second battery cells include first and second output terminals having opposite polarities, and
a connection wiring is connected to the protective circuit to conduct a charging/discharging current from the first or second output terminal.
7. The battery module as claimed in claim 6 , wherein the connection wiring includes a protrusion integrally protruding from the first or second output terminal toward the protective circuit.
8. The battery module as claimed in claim 2 , wherein detection wiring is connected to the protective circuit for collecting a voltage detection signal from the battery cell.
9. The battery module as claimed in claim 8 , wherein the detection wiring extends from a bus bar electrically connecting a plurality of battery cells.
10. The battery module as claimed in claim 9 , wherein the detection wiring includes a protrusion integrally protruding from the bus bar toward the protective circuit.
11. The battery module as claimed in claim 1 , wherein the at least one fusible conductor includes solder.