Patent ID: 11942617
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  A  Y | IPC A  H

Claim 0:
1. A battery module, comprising:
a plurality of battery cells;
a module case configured to accommodate the plurality of battery cells;
an air intake unit provided to a first side of the module case and configured to guide an air into the module case to cool the plurality of battery cells;
an air discharge unit provided to a second side of the module case and configured to discharge the air introduced into the module case through the air intake unit to the outside of the module case;
a main flow path between the air intake unit and air discharge unit;
at least one sheet member attached to an inner wall of the module case between the air discharge unit and the air intake unit and configured to expand above a predetermined temperature to block the main flow path; and
an air circulation guide member disposed between the air intake unit and the plurality of battery cells, the air circulation guide member having a pair of spaced apart side walls formed from a material configured to expand above the predetermined temperature,
wherein the pair of spaced apart side walls comprises a first wall provided with slits and a second wall contacting the at least one sheet member.