The present invention relates to a plate (20), particularly for a bipolar battery (10), the plate (20) being of the type that comprises a base graphite material (2), a positive active material (3) applied to a first surface (4) of the base material (2) and a negative active material (5) applied to a second surface (6) of the base material (2) opposite the first surface (4), the positive active material (3) having a composition that comprises lead dioxide, conductive carbon fibers and glass microspheres, and the negative active material (5) having a composition that comprises spongy lead, graphite additives and glass microspheres. One further describes a bipolar battery (10) formed by a plurality of plates (20), each plate (20) comprising a graphite base material (2), positive active material (3) applied to the first surface (4) of the base material (2) and negative active material (5) applied to a second surface (6) of the base material (2), opposite the first surface (4), the positive active material (3) of the plurality of plates (20) having a composition that comprises lead dioxide, conductive carbon fibers and glass microspheres, and the negative active material (5) of the plurality of plates (20) having a composition that comprises spongy lead, graphite additives and glass microspheres.