▎ 摘　　要

NOVELTY - Lithium-ion battery comprises an anode, a cathode, a lithium-ion permeable and electrically insulating separator that electrically separates the anode from the cathode, and an artificial solid-electrolyte interface (SEI) layer provided between the anode and the separator. The artificial SEI layer has a lithium-ion conductivity greater than 10-6 S/cm, and the anode comprises (i) multiple particles of an anode active material selected from the group consisting of silicon (Si), germanium (Ge), phosphorus (P), tin (Sn), lead (Pb), antimony (Sb), bismuth (Bi), zinc (Zn), aluminum (Al), titanium (Ti), nickel (Ni), cobalt (Co), cadmium (Cd), alloys, and alloys with lithium (Li), (ii) 0-10 wt.% conductive additive, and (iii) 0-10 wt.% binder resin. USE - Lithium-ion battery for producing the artificial solid-electrolyte interface (SEI) layer (claimed). ADVANTAGE - The lithium-ion battery improves electrical conductivity of the anode material, and irreversibly captures lithium during the first few cycles, and resulting in excessive irreversibility. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: A method for producing the artificial solid-electrolyte interface (SEI) layer, which involves: preparing a working electrode containing a structure of amorphous carbon, polymeric carbon, or polymer matrix and a reinforcement phase dispersed in matrix; preparing a counter electrode containing lithium or sodium metal or alloy; bringing working electrode and counter electrode in contact with an electrolyte containing a solvent and a lithium salt or sodium salt dissolved in solvent; and applying a current or voltage to working electrode and counter electrode to induce an electrochemical oxidative decomposition and/or a reductive decomposition of electrolyte and/or salt for forming lithium- or sodium-containing species that are chemically bonded to matrix and/or reinforcement phase to produce artificial SEI layer. A method for producing the lithium-ion battery, which involves: (a) preparing a lithium-ion battery cell, which comprises (i) an anode layer, (ii) a precursor or supporting layer of sulfide, hydride, halide, borate, phosphate, amorphous carbon, polymeric carbon, or polymer matrix, (iii) a solid-state electrolyte, different in composition than the precursor or supporting layer, or a porous separator layer and a second electrolyte, and (iv) a cathode layer. The precursor or supporting layer of sulfide, hydride, halide, borate, phosphate, amorphous carbon, polymeric carbon, or polymer matrix is laminated between anode layer and porous separator or solid-state electrolyte layer, and porous separator or solid-state electrolyte layer is provided between precursor or supporting layer and cathode layer; and (b) subjecting battery cell to a voltage/current treatment that induces electrochemical reductive and/or oxidative decomposition of solid-state electrolyte, second electrolyte, sulfide, hydride, halide, borate or phosphate, to form lithium- and/or sodium-containing species that are bonded to amorphous carbon, polymeric carbon, or polymer matrix or bonded to the anode, the solid-state electrolyte, or the separator layer to form the artificial SEI layer in battery cell to obtain lithium-ion battery.