Automobile with battery pack installed over underbody frame

An automobile comprising:

• an underbody frame of the automobile;
• and
• a battery apparatus comprising a plurality of battery cells and a case housing the plurality of battery cells;
• wherein each of the plurality of battery cells comprises a vent portion configured to break and discharge gas when pressure inside the battery cell reaches a certain level,
• wherein the case comprises a bottom wall and a plurality of bottom vent openings formed through the bottom wall,
• wherein the plurality of battery cells are arranged inside the case such that the vent portion of each of the plurality of battery cells is placed at a bottom portion of the case,
• such that each of the plurality of the battery cells corresponds to and is aligned with one of the plurality of bottom vent openings of the case,
• such that each of the plurality of bottom vent openings of the case corresponds to and is aligned with the vent portion of the one of the plurality of battery cells, and
• further such that, when viewed from under the battery apparatus, the plurality of bottom vent openings are exposed and the vent portions of the plurality of battery cells are also exposed through the plurality of bottom vent openings,
• whereby, if gas is discharged from a first one of the plurality of battery cells through the vent portion thereof, at least part of the gas discharged through the vent portion of the first battery cell would be released to outside the case directly through a first one of the plurality of bottom vent openings corresponding to the vent portion of the first battery cell as the vent portion of the first battery cell is exposed through the first bottom vent opening corresponding to the first battery cell, and
• wherein the battery apparatus is installed over the underbody frame such that the bottom wall of the case and the underbody frame directly face each other with a clearance having a height defined between the bottom wall of the case and the underbody frame and further such that at least part of the vent portions exposed to the underbody frame via the clearance having the height defined between the bottom wall of the case and the underbody frame, whereby, if gas is discharged from the first battery cell through the vent portion thereof, at least part of the discharged gas released through the first bottom vent opening would flow via the clearance having the height defined between the bottom wall of the case and the underbody frame.