NOVELTY - The rechargeable lithium battery (30) useful in electrolytic capacitor comprises an airtight container (31), electrodes (32, 32') immersed in an electrolytic solution and spaced apart by separators, electrical contacts (34, 34') connected to the electrodes and a means for sorbing harmful substances. The sorbing means is comprised of a polymeric housing (33) permeable to the harmful substances but impermeable to the electrolyte and containing getter materials for sorbing the harmful substances. The permeable polymeric housing is comprised of two welded polymeric sheets.    USE - The rechargeable lithium battery is useful in several electronic devices such as electrolytic capacitor, and in hybrid or totally electric vehicles.    ADVANTAGE - The rechargeable lithium battery has greater capacity and power and energy density.    DETAILED DESCRIPTION - The rechargeable lithium battery (30) useful in electrolytic capacitor comprises an airtight container (31), electrodes (32, 32') immersed in an electrolytic solution and spaced apart by separators, electrical contacts (34, 34') connected to the electrodes and a means for sorbing harmful substances. The sorbing means is comprised of a polymeric housing (33) permeable to the harmful substances but impermeable to the electrolyte and containing getter materials for sorbing the harmful substances. The permeable polymeric housing is comprised of two welded polymeric sheets having the uniform thickness of 5-15 mu m. The getter materials are in the form of powders having a size of 10-60 mu m or in the form of a single pill of compressed powders. The polymeric housing has a cylindrical shape, and is in direct contact with the surface of the pill. The getter material is used together with oxidation catalysts. The harmful substances comprise saturated or unsaturated hydrocarbons and the getter material comprises carbon nanotubes, activated carbons having a large surface area and oxidizing compounds. The polymeric housings are arranged along portions of the inner walls of the airtight container of the battery. The portion for accommodating the polymeric housing is separated from the residual portion of the battery by an electrically isolated grid.    DESCRIPTION OF DRAWING(S) - The diagram shows a sectional view of a rechargeable lithium battery.    Rechargeable lithium battery (30)    Airtight container (31)    Electrodes (32, 32')    Polymeric housing (33)    Electrical contacts. (34, 34')