NOVELTY - Vehicle battery mounting structure (10) comprises battery frame arranged on vehicle longitudinal direction front side of connection beam (22) through which pair of rear suspensions (20) are connected to each other, and supports battery under vehicle floor; rear wall provided at battery frame and is arranged between battery and connection beam; and load-receiving portion arranged between rear wall and connection beam and is attached on vehicle body.    USE - Vehicle battery mounting structure.    ADVANTAGE - The vehicle battery mounting structure minimizes connection beam breaking possibility in battery frame. It reduces impact load transfer to battery via load-receiving portion and battery frame. The connection beam efficiently absorbs impact energy by deforming.    DETAILED DESCRIPTION - The load-receiving portion is inclined so that its vehicle vertical direction upper end is located on vehicle longitudinal direction rear side of vehicle vertical direction lower end of load-receiving portion. The connection beam has inverted-V-shaped open cross-section having opening at vehicle vertical direction lower side; and inclination angle of load-receiving portion with respect to horizontal plane larger than inclination angle. The upper end of load-receiving portion is located on vehicle vertical direction upper side of vehicle vertical direction upper end of connection beam. The rear wall has projecting portion that projects toward vehicle longitudinal direction rear side and is formed such that space is defined between battery and projecting portion. The projecting portion projects more toward vehicle longitudinal direction rear side than load-receiving portion. It is provided at vehicle lateral direction middle portion of rear wall.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of vehicle battery frame and rear suspension system.    Mounting structure (10)    Battery pack (14)    Suspension system (18)    Rear suspensions (20)    Connection beam (22)    Shock absorber (24)    Suspension arm bushes (28)    Battery frame (40)