NOVELTY - An improved lithium-ferrous disulfide battery comprises a shell (6) that is internally equipped with an anode pole sheet (4), a cathode pole sheet, and a porous isolation film (3); where the anode pole sheet and cathode pole sheet have a porous isolation film in between; the shell is filled with organic electrolyte; the anode pole sheet comprises an anode active substance and an anode collector; the anode active substance is ferrous disulfide; the cathode pole sheet comprises a cathode active substance and a cathode collector (2); and the cathode active substance is metal lithium foil (1).    USE - The improved lithium-ferrous disulfide battery is useful for industrial applications.    ADVANTAGE - The improved lithium-ferrous disulfide battery has small resistance, good large-current discharge performance, good pulse discharge performance, high discharge platform, no-depression voltage, and good performance consistency.    DETAILED DESCRIPTION - An improved lithium-ferrous disulfide battery comprises a shell (6) that is internally equipped with an anode pole sheet (4), a cathode pole sheet, and a porous isolation film (3); where the anode pole sheet and the cathode pole sheet have a porous isolation film in between; the shell is internally filled with organic electrolyte; the anode pole sheet comprises an anode active substance and an anode collector; the anode active substance is ferrous disulfide; the cathode pole sheet comprises a cathode active substance and a cathode collector (2); the cathode active substance is metal lithium foil (1); and the cathode collector is copper net, poriform aluminum foil, aluminum net, poriform copper foil, foam nickel, poriform nickel foil, or nickel net. An INDEPENDENT CLAIM is a method for manufacturing the improved lithium-ferrous disulfide battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the improved lithium-ferrous disulfide battery.    Metal lithium foil (1)    Cathode collector (2)    Porous isolation film (3)    Anode pole sheet (4)    Shell (6)