NOVELTY - Lithium oxalate, vanadium pentoxide, ammonium dihydrogen phosphate, manganese dioxide and carbon black are mixed, gadolinium oxide is added to resulting mixture. The obtained powder is heated, and mixed gas of hydrogen and nitrogen is added to the obtained mixture and cooled. The resulting mixture is heated to obtain gadolinium-doped vanadium-lithium manganate. Styrene-butadiene rubber is added to N-methyl pyrrolidone, gadolinium-doped vanadium-lithium manganate and carbon nanotube are mixed, and obtained slurry is coated on substrate to obtain positive electrode.    USE - Preparation of manganese-vanadium composite anode used for lithium-ion battery (claimed).    ADVANTAGE - The lithium-ion battery containing the manganese-vanadium composite anode has high capacity, cyclic characteristics and excellent durability.    DETAILED DESCRIPTION - Lithium oxalate, vanadium pentoxide, ammonium dihydrogen phosphate, manganese dioxide and carbon black are mixed, 3-5 %mass gadolinium oxide is added to the resulting mixture, and ground to particles having particle diameter of 20-30 nm. The powder is heated at 400-600 degrees C for 6-10 hours, mixed gas of hydrogen and nitrogen is added to the resulting mixture, and temperature of mixture is increased to 800-900 degrees C for 8-10 hours. The resulting mixture is cooled naturally to room temperature and ground to particle diameter of 10-20 mu m. The resulting mixture is heated at 900-1000 degrees C for 2-3 hours under nitrogen atmosphere to obtain gadolinium-doped vanadium-lithium manganate. 6-8 pts. wt. Styrene-butadiene rubber is added to N-methyl pyrrolidone as solvent, stirred under vacuum for 4-6 hours, and 90-100 pts. wt. gadolinium-doped vanadium-lithium manganate, and 2-4 pts. wt. carbon nanotube are added, stirred for 10-12 hours, to obtain positive electrode slurry. The positive electrode slurry is coated on substrate to obtain positive electrode. The molar ratio of lithium, vanadium, phosphorus, manganese and carbon is 2:1:1:1:1.