An electrode plate unit capable of suppressing the internal short circuit caused by flashing that is formed on the end portion of a positive electrode plate and a battery using the same. The Fresnel lens element may be a self-supporting lens element pane positioned intermediately within the interspace between the inner and outer panes, or a lens film adhesively bonded onto the surface of the inner pane facing the interspace, or a Fresnel lens configuration provided directly on the surface of the inner pane facing the interspace. The receiver renders the portions of the received transmissions in accordance with a schedule. A decontaminant is provided for application to the body andor body parts.