▎ 摘　　要

NOVELTY - Preparing zinc sulfide-graphene composite lithium-ion battery anode material comprises e.g. preparing graphite oxide comprising placing three mouth bottle in ice water bath, adding concentrated sulfuric acid, graphite, sodium nitrate, stirring, adding potassium permanganate, stirring, adding potassium permanganate, stirring, adding distilled water, adding hydrogen peroxide, rinsing using diluted hydrochloric acid and distilled water, centrifuging, transferring, placing in culture dish, air-drying, and preparing zinc sulfide and zinc sulfide-reduced graphene oxide composite anode material. USE - The composite anode material is useful for: preparing supporting buckle type lithium ion battery and lithium ion battery anode material to increase the electric conduction circulation ability of the graphene material; and reducing the capacity attenuation and volume effect of electrode material. ADVANTAGE - The composite anode material has improved discharging capacity and circulating stability. DETAILED DESCRIPTION - Preparing zinc sulfide-graphene composite lithium-ion battery anode material comprises (i) preparing graphite oxide (GO) comprising (ia) taking 250 ml three mouth bottle, placing in ice water bath, sequentially adding 80 ml concentrated sulfuric acid, 2 g graphite, 1 g sodium nitrate, stirring for 1 hour, under the condition where the temperature is maintained below 10 degrees C, slowly adding 3 g potassium permanganate into the bottle, stirring for 1 hour, and taking out of the water bath, (ib) slowly adding 6 g potassium permanganate into the bottle under the conditions where, the temperature is maintained below 20 degrees C, at the end of the addition heating to 35 degrees C, keeping the temperature and stirring for 60 minutes, slowly adding 90 ml distilled water into the bottle, rising the temperature to 80 degrees C, keeping the temperature and stirring for 30 minutes, adding 30% hydrogen peroxide (7 ml) into the solution and adding 55 ml distilled water, allowing to stand for 12 hours, (ic) rinsing the product using 3% diluted hydrochloric acid and distilled water, centrifuging for 3 times, transferring into a drying oven at 40 degrees C for 30 minutes, taking out and placing in culture dish, air-drying at room temperature, and (ii) preparing zinc sulfide and zinc sulfide-reduced graphene oxide composite anode material comprising (iia) taking two groups, where the first group is obtained by mixing zinc acetate and L (+) cysteine according to mol ratio of 1:3, and adding into 20 ml distilled water, and the second group is obtained by adding 0.04-0.2 g the graphene oxide obtained in the step (i), at room temperature, mixing the two groups, stirring for 30 minutes, adding ammonium hydroxide in dropwise manner, and adjusting the pH value of the solution to 9-10, (iib) transferring the solution obtained in the step (iia), into hydro-thermal kettle, slow heating to 180 degrees C, keeping the temperature for 12 hours, and naturally cooling to room temperature, (iic) taking the product obtained in the step (iib) centrifuging, washing for 2-3 time using distilled water, placing in vacuum oven at 80 degrees C, and drying for 24 hours.