NOVELTY - A low temperature lithium ion battery is produced by taking try powder of the anode pulp, preparing lithium cobaltate, anode conductive agent carbon nanotubes (CNTs), and anode adhesive polyvinylidene fluoride (PVDF); stirring PVDF and solvent N-Methylpyrrolidone (NMP), adding CNTs and stirring them, adding lithium cobaltate and stirring them, and obtaining anode pulp.    USE - Method for producing low temperature lithium ion battery (claimed).    ADVANTAGE - The method improves the low temperature discharge performance of the battery, and improves the high temperature storing performance of the battery. The lithium ion battery produced by the method can work normally under condition of ultralow temperature of - 40 degrees C and cannot produce vapor after being stored for 48 hours at the condition of 70 degrees C.    DETAILED DESCRIPTION - Producing low temperature lithium ion battery, comprises:    (A) taking try powder of the anode pulp, preparing lithium cobaltate (87-95), anode conductive agent CNTs (3-8), and anode adhesive PVDF (2-5); stirring PVDF and solvent NMP, adding CNTs (3 mass%) and stirring them, adding lithium cobaltate and stirring them, and obtaining anode pulp;    (B) taking dry powder of cathode pulp, preparing cathode active substance (90-95), cathode conductive agent (3-6), cathode adhesive (2-5), and thickener (1-2.5); mixing them together and adding to water, and stirring them in vacuum and obtaining cathode pulp;    (C) coating the prepared anode pulp on aluminum foil that is 15-40 mu m thick, drying, and obtaining anode piece; and coating the prepared cathode pulp on electrolytic copper foil and producing into cathode piece after drying;    (D) rolling the coated anode and cathode pieces, die cutting, drying, overlapping the pieces crosswise, and forming battery core; and    (E) respectively welding aluminum and copper plated nickel electrode lugs with the anode and cathode pieces together to form anode and cathode electrode lugs, encapsulating it by an aluminum film, roasting, injecting liquid, exhausting air and sealing the mouth, forming, aging, exhausting air and sealing the mouth secondarily, and detecting it and obtaining the batter.    The injected non-aqueous electrolyte is organic solvent comprising ethylene carbonate, propylene carbonate, diethylpyrocarbonate, dimethyl carbonate and ethyl methyl carbonate. The electrolyte lithium salt is lithium hexafluorophosphate. The additive (1-5 mass%) is difluoromethyl acetate, ethyl difluoroacetate, and methyl-2,2,2-trifluoroacetic acid carbonic ester.