▎ 摘　　要

NOVELTY - Large capacity fast charging graphene battery comprises an anode sheet, a cathode electrode sheet, a separator, an electrolyte, and a battery case. The anode sheet and the cathode sheet are respectively composed of positive and negative material coated on aluminum foil. The anode material comprises 1-2 pts. wt. ferric oxide, 5-10 pts. wt. micro-silicon powder, 1-5 pts. wt. graphene oxide, 3-5 pts. wt. spinel lithium manganate, 7-11 pts. wt. fatty alcohol polyoxyethylene ether, 1.5-3.5 pts. wt. cathode conductive agent and 4-6 pts. wt. cathode binder. The anode binder comprises 10-15 pts. wt. terpene resin, 5-10 pts. wt. carboxymethyl cellulose, 5-7 pts. wt. polyacrylic acid and proper amount of ethanol. The cathode conductive agent comprises 1.1-2.2 pts. wt. carbon black and 2.4-4.8 pts. wt. carbon nanotubes. The anode electrode material comprises spinel lithium titanate, fluorinated graphene, polyvinylpyrrolidone, anode conductive agent and cathode binder. USE - Used as large capacity fast charging graphene battery. ADVANTAGE - The battery shortens the charging time to 34.94% and achieves battery charging/discharging efficiency to 87.73%. DETAILED DESCRIPTION - Large capacity fast charging graphene battery comprises an anode sheet, a cathode electrode sheet, a separator, an electrolyte, and a battery case. The anode sheet and the cathode sheet are respectively composed of positive and negative material coated on aluminum foil. The anode material comprises 1-2 pts. wt. ferric oxide, 5-10 pts. wt. micro-silicon powder, 1-5 pts. wt. graphene oxide, 3-5 pts. wt. spinel lithium manganate, 7-11 pts. wt. fatty alcohol polyoxyethylene ether, 1.5-3.5 pts. wt. cathode conductive agent and 4-6 pts. wt. cathode binder. The anode binder comprises 10-15 pts. wt. terpene resin, 5-10 pts. wt. carboxymethyl cellulose, 5-7 pts. wt. polyacrylic acid and proper amount of ethanol. The cathode conductive agent comprises 1.1-2.2 pts. wt. carbon black and 2.4-4.8 pts. wt. carbon nanotubes. The anode electrode material comprises 2.5-4 pts. wt. spinel lithium titanate, 1-5 pts. wt. fluorinated graphene, 6-12 pts. wt. polyvinylpyrrolidone, 1-3 pts. wt. anode conductive agent and 4-6 pts. wt. cathode binder. The cathode electrode binder comprises 2-8 pts. wt. gelatin, 3-6 pts. wt. chitosan, 2.5-4.5 pts. wt. sodium alginate and proper amount of distilled water. The cathode conductive agent comprises 1.2-3.8 pts. wt. polyaniline, 2.2-3.4 pts. wt. nano carbon fiber, 1-3 pts. wt. expanded graphite and 6-7 pts. wt. N-methylpyrrolidone. The weight ratio of terpene resin and carboxymethyl cellulose in anode binder is 12-14:6-9. The weight ratio of gelatin, chitosan and sodium alginate in cathode binder is: 3-7:4-5:3-4. The electrolyte is prepared by mixing diethyl carbonate, propylene carbonate and dimethyl carbonate in a ratio of 1:3:1 in a polyethylene bottle, adding 0.5 times amount of lithium difluorooxalate borate (1 mol/l), sealing, allowing it to stand for 24 hours, adding sodium chloride and lithium silicate in a mixing ratio of 1:2 into polyethylene bottle, mixing and allowing it to stand for 24 hours. An INDEPENDENT CLAIM is also included for preparing the large capacity fast charging graphene battery, comprising: (i) crushing the expanded graphite into a particle size of 0.8 mu m via jet mill, placing in a high-speed mixer along with nano carbon fiber, polyaniline and N-methylpyrrolidone, mixing at 2000 rotations/minute for 3 minutes to obtain cathode conductive agent; (ii) mixing gelatin and distilled water in a ratio of 1:6, heating and stirring until the gelatin is completely dissolved, controlling the temperature of the solution to 55 degrees C, adding chitosan and sodium alginate, continuing to stir until there is no precipitation in the solution to obtain a cathode binder; (iii) mixing spinel lithium titanate, fluorinated graphene, cathode conductive agent, cathode binder in a magnetic stirrer, adding 50% polyvinylpyrrolidone solution under stirring condition within 30 minutes, grinding in an agate mortar until the particles are 200 meshes to obtain cathode material; (iv) placing carbon black and carbon nanotubes in a vacuum oven at 100 degrees C for 48 hours and grinding to 0.8 mu m to obtain anode conductive agent; (v) adding terpene resin, carboxymethyl cellulose and polyacrylic acid into a ball mill jar, adding 7 times weight of ethanol and 5 pts. wt. agate ball beads (diameter of 2 cm), wet milling for 8 hours in a planetary ball mill with a speed of 250 rotations/minute under nitrogen protection, taking out and heating at 120 degrees C for 2 hours, heating at 200 degrees C for 40 minutes, then naturally cooling to obtain anode binder; (vi) mixing iron oxide, micro silicon powder, graphene oxide, lithium spinel manganate, anode conductive agent and anode binder, sonicating for 15 minutes, adding fatty alcohol oxyethylene vinyl ether, stirring for 3 hours, vacuumizing and sieving via 200 meshes sieve to obtain anode material; and (vii) respectively coating the cathode material and anode material on the aluminum foil, drying in a vacuum drying oven at 40 degrees C for 2 hours, pressing at 4 MPa, vacuum-baking at 100 degrees C for 40 minutes, injecting the electrolyte between the cathode sheet and the anode sheet, and subjecting to package treatment.