Battery system for e.g. hybrid car, has air interchange device that allows exchange of air between interior of battery housing and exterior environment to prevent or minimize ingress of water from exterior environment into interior

摘要

The battery system has battery housing (1) that comprises an aperture (2) in which an air interchange device (4) is provided. The air interchange device allows exchange of air between interior (8) of the battery housing and exterior environment (7) such that the ingress of water from the exterior environment into the interior of the battery housing is prevented or minimized.