▎ 摘　　要

NOVELTY - Sodium-ion/lithium-ion solid-state battery, comprises a cathode sheet, anode sheet, a separating sheet, powder additive (4) and auxiliary component. The cathode sheet is made of silicon material higher than metal lithium by using MOFs composite, MXene is electronic and ion conductive agent, then pre-processing with sodium element or lithium element, then dry mixing, cold pressing and hot compress processing. The anode sheet is made of material anode solid electrolyte, conductive agent, bonding agent by dry mixing, cold pressing and hot compress processing. The isolating sheet is made of inorganic solid electrolyte and polymer solid electrolyte by solvent mixing or melting mixing. The powder additive is more than two solid powder substances, directly added to the gap between a battery core (1) and a shell (5). The auxiliary piece comprises a shell, a large tab, a current collector, a gummed paper. USE - Used as sodium-ion/lithium-ion solid-state battery. ADVANTAGE - The battery: is non-flammable; has high energy density; and can relieve the problem of volume expansion. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a production method of sodium-ion/lithium-ion solid-state battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the sodium-ion/lithium-ion solid-state battery. 1Battery core 4Powder additive 5Shell