▎ 摘　　要

NOVELTY - Preparation of germanium-air battery involves adding copper foil into sample chamber, performing vacuum treatment, heating under certain pressure in mixed gas of argon and hydrogen, adjusting gas flow rate to etching flow rate, introducing and closing methane/argon mixed gas, hydrogen, glow and heating system, curing using polymethyl methacrylate anisole solution, adding into etching solution, dipping in deionized water, enabling graphene to be tightly attached to germanium sheet, and drying to obtain germanium/graphene composite electrode, placing carboxymethyl cellulose in small beaker, adding potassium hydroxide solution, and dissolving to prepare potassium hydroxide gel electrolyte, adding platinum carbon catalyst into beaker, adding Nafionsolution, isopropanol, smearing on carbon paper, and drying to prepare platinum/carbon cathode, and assembling germanium/graphene composite anode, potassium hydroxide gel electrolyte and Pt/C cathode on button air battery mold, and packaging. USE - Preparation of germanium-air battery with germanium/graphene composite material as anode. DETAILED DESCRIPTION - Preparation of germanium-air battery with germanium/graphene composite material as anode involves adding cleaned copper foil into sample chamber for plasma vapor deposition, performing vacuum treatment of gas in sample chamber, heating system to target temperature under certain pressure in mixed gas of argon and hydrogen, adjusting gas flow rate of argon and hydrogen to etching flow rate after target temperature is reached, opening plasma radio frequency device after gas flow rate is stable, etching for 1-2 minutes, immediately introducing methane/argon gas for graphene growth, closing methane/argon mixed gas, hydrogen, glow and heating system, cooling and taking out under protection of argon, curing processed copper-plated graphene using polymethyl methacrylate (PMMA) anisole solution, adding cured copper-plated graphene into etching solution, dipping etched graphene film in deionized water, cleaning using cleaned germanium sheet, soaking and cleaning for certain time, picking up pure graphene film using germanium sheet, slightly blowing away water between film and germanium sheet using ear washing ball, heating and reinforcing sample, heating graphene, enabling graphene to be tightly attached to germanium sheet, soaking graphene in acetone solvent for period of time, performing multiple operations, and naturally drying soaked graphene to obtain a germanium/graphene composite electrode, placing carboxymethyl cellulose (CMC) in small beaker, adding potassium hydroxide solution, quickly stirring using glass rod, and fully dissolving by ultrasonical waves to prepare potassium hydroxide (KOH) gel electrolyte, adding platinum carbon catalyst into beaker, adding Nafion(RTM: sulfonated tetrafluoroethylene based fluoropolymer-copolymer) solution using a pipette, adding isopropanol to carry out ultrasonically dissolution, smearing dissolved solution on carbon paper using the pipette, and drying at room temperature to prepare a platinum/carbon (Pt/C) cathode, assembling germanium/graphene composite anode, potassium hydroxide gel electrolyte and Pt/C cathode on button air battery mold, and packaging using a packaging machine.