a layer - built sealed alkaline storage battery includes plural rectangular cell units 11 . those cell units 11 are arranged in a row and united together with a pair of end plates 1 and 2 arranged at the opposite sides of the assembly of the cells by belt - like clamp bands 37 , 38 each extending cross from one of the end plates 1 through the cell units 11 to the other of the end plates 2 and being fixed at the end thereof on the end plates 1 , 2 . each end plate 1 or 2 is of one - piece structure having 1 ) a generally rectangular panel portion or portions 26 and 2 ) a peripheral wall frame 26 and 3 ) reinforcement ribs 23a to 23c , so that the assembly of the cell can be united so as to be prevented from deformation due to expansion and vibration of the cells .