Abstract: A vehicle includes a first region in which a reservoir, an air separator, and a pump are disposed, and a second region in which a chiller and a compressor are disposed The first and second regions are spaced apart from each other in a leftward and rightward direction.

Abstract: An apparatus for detecting thermal runaway of a battery may include a battery system that includes: a lower cover that forms at least two accommodation spaces; an upper cover coupled to an upper portion of the lower cover; a battery pack assembly, which may include at least one battery module mounted in at least one of the at least two accommodation spaces, and an electronic component for managing the at least one battery module; a venting device positioned away from the electronic component and configured to discharge gas from inside the battery module; and a temperature sensor.