Patent ID: 11862821
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A battery pack, comprising:
a pack case;
a plurality of battery modules provided inside the pack case, each battery module of the plurality of battery modules including at least one battery cell;
at least one insulation member provided between the plurality of battery modules; and
an energy drainer spaced apart from the at least one insulation member and connected to a first battery module among the plurality of battery modules, the energy drainer being configured to externally short-circuit the first battery module when thermal runaway occurs in at least one battery module among the plurality of battery modules,
wherein the energy drainer includes:
a relay connected to a battery cell of the first battery module and configured to perform an on/off operation; and
a resistor connected to the relay and provided outside the pack case,
wherein the resistor is connected to a cooler outside the energy drainer and is filled with a cooling agent supplied from the cooler.