Battery housing with valve device, battery and motor vehicle

A battery housing for a battery of a motor vehicle, which is configured to receive at least one battery cell of the battery, the battery housing comprising:

• a valve apparatus for equalizing pressure in an event of a pressure difference between an interior space of the battery housing and a surrounding area of the battery housing and for discharging a hot gas, which is released into the interior space, of the at least one battery cell into the surrounding area of the battery housing, wherein:
• the valve apparatus has a valve seat, in a form of a degassing opening in a housing wall of the battery housing, and a valve body,
• the valve body closes the degassing opening in a closed position, is movable into a first open position, in which the valve body reversibly opens up the degassing opening in order to provide the pressure equalization, by way of an internal pressure increase resulting from a pressure difference, and is movable into a second open position, in which the valve body irreversibly opens up the degassing opening in order to discharge the hot gas, by way of an internal pressure increase resulting from the hot gas,
• the valve apparatus comprises a fixing device configured to fix the valve body, which has been raised into the second open position by way of the internal pressure increase resulting from the hot gas, in the second open position in order to discharge the hot gas,
• the fixing device is a snap connection device, and
• the valve body and the housing wall have mutually corresponding connecting elements, which snap into one another as soon as the valve body has moved into the second open position.