▎ 摘　　要

NOVELTY - Preparing in-situ heat-aggregate solid lithium-sulfur battery comprises overlapping anode, isolating film and cathode in a glove box filled with argon to form anode/isolating film/cathode structure, injecting polymer electrolyte precursor solution into battery, packaging to form liquid battery, heating assembled liquid battery to solidify polymer electrolyte precursor solution, obtaining solid polymer electrolyte and corresponding solid lithium-sulfur battery, where anode is sulfur anode, and cathode is lithium metal, the sulfur anode is elemental sulfur and/or sulfur-based composite anode, where sulfur composite anode is prepared by mixing active material sulfur and conductive agent, where conductive agent is activated carbon, mesoporous carbon, carbon nanofibers, multi-walled carbon nanotubes, graphene, polyacrylonitrile, polyaniline, polypyrrole and/or polythiophene, and mixing polymer monomer, initiator and liquid electrolyte to obtain solid polymer electrolyte precursor solution. USE - The method is useful for preparing in-situ heat-aggregate solid lithium-sulfur battery used as energy storage device for mass production of solid-state battery. ADVANTAGE - The method: uses in-situ thermal polymerization to realize simultaneous preparation of solid polymer electrolytes and solid lithium-sulfur batteries; solves the problems of large polarization, fast capacity decay, cumbersome preparation process and high production cost of solid-state lithium-sulfur batteries; solves the problem of poor solid/solid interface contact between the electrolyte diaphragm and the anode and cathode of battery in the solid-state lithium-sulfur battery; has simple process; does not need to change the existing battery preparation process flow during implementation; and is suitable for the large-scale production of this type of solid-state battery. DETAILED DESCRIPTION - Preparing in-situ heat-aggregate solid lithium-sulfur battery comprises overlapping anode, isolating film and cathode in a glove box filled with argon to form anode/isolating film/cathode structure, injecting polymer electrolyte precursor solution into battery, packaging to form liquid battery, heating assembled liquid battery to solidify polymer electrolyte precursor solution, obtaining solid polymer electrolyte and corresponding solid lithium-sulfur battery, where anode is sulfur anode, and cathode is lithium metal, the sulfur anode is elemental sulfur and/or sulfur-based composite anode, where sulfur composite anode is prepared by mixing active material sulfur and conductive agent, where the conductive agent is activated carbon, mesoporous carbon, carbon nanofibers, multi-walled carbon nanotubes, graphene, polyacrylonitrile, polyaniline, polypyrrole and/or polythiophene, mixing polymer monomer, initiator and liquid electrolyte to obtain solid polymer electrolyte precursor solution, where polymer monomer is acrylic acid, ethylene oxide, acrylonitrile and/or vinylidene fluoride, the initiator is peroxide initiators, azo initiators and/or redox initiators, the peroxide initiator is hydrogen peroxide, ammonium persulfate, potassium persulfate, benzoyl peroxide, benzoyl tert-butyl peroxide or methyl ethyl ketone peroxide, the azo initiator is azobisisobutyronitrile, azobisisoheptanonitrile, azobisisobutyromidine hydrochloride or azobisisobutylimidazoline hydrochloride, the water-soluble oxidant of redox initiator is hydrogen peroxide, persulfate or hydroperoxide, and the water-soluble reducing agent is ferrous ion, sodium sulfite or sodium bisulfite, the oil-soluble oxidizing agent is cyclohexanone peroxide, methyl ethyl ketone peroxide or dibenzophthalein peroxide, and the oil-soluble reducing agent is cobalt naphthenate, manganese, vanadium or iron salt, or tertiary amine compounds, where the liquid electrolyte comprises organic solvent and lithium salt, the organic solvent is carbonates and/or ethers, the carbonate is ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl carbonate, ethyl methyl carbonate or methyl propyl carbonate, the ether is tetrahydrofuran, 2-methyltetrahydrofuran, 1,3-dioxolane, dimethoxymethane, 1,2-dimethoxyethane or diglyme, and the lithium salt is lithium hexafluorophosphate, lithium tetrafluoroborate, lithium difluorophosphate, lithium dioxalate borate, lithium oxalate difluoroborate, lithium bisfluorosulfonyl imide and/or lithium bistrifluoromethanesulfonyl imide, where the lithium salt concentration is 0.6-2.5 mol/l.