To provide an intermediate to large capacity of rectangular sealed battery with less temperature-rise, which is specially made into high volume capacity density, high power density and high reliability.

This storage battery has a synthetic resin battery jar 10 to store therein an electrode plate group 8 with positive electrode plates 8a and negative electrode plates 8b layered via separators 8c. To a synthetic resin cover 1, a nickel terminal pole 2 is fixed, for which a pair of screws 2a as the outside power terminals of positive and negative electrodes, a pole part 2b, a sealing groove 2c and collectors 2f have the same center axes and the plural collectors 2f are protruded from a flange 2d.