Abstract: A vehicle battery fire sensing apparatus and method includes a battery pack mounted to a vehicle structure and an electronic control unit. The battery pack includes a battery module including one or more battery cells, a battery management system configured to transmit a signal received from the battery module to the electronic control unit, and a battery pack case having a gas discharge portion configured to allow venting gas to be discharged therethrough. The vehicle battery fire sensing apparatus further includes a sensor provided at the vehicle structure, the sensor being configured to measure at least one of the temperature or pressure of the gas discharged from the gas discharge portion.

Abstract: A battery pack which includes a plurality of battery modules, each battery module including a plurality of battery cells. Electrode leads extend from the plurality of battery cells; a connection member connects with at least one of the electrode leads; a bus bar electrically connects neighboring battery modules, and one end thereof contacts the connection member. An insulation member covers a contact portion of the connection member and the bus bar; and a flame spread blocking member overlaps the contact portion of the connection member and the bus bar, while being disposed on the insulation member.

Abstract: A battery pack which includes a plurality of battery modules, each battery module including a plurality of battery cells. Electrode leads extend from the plurality of battery cells; a connection member connects with at least one of the electrode leads; a bus bar electrically connects neighboring battery modules, and one end thereof contacts the connection member. An insulation member covers a contact portion of the connection member and the bus bar; and a flame spread blocking member overlaps the contact portion of the connection member and the bus bar, while being disposed on the insulation member.