▎ 摘 要
NOVELTY - Low-temperature starting lithium-ion battery comprises magnetic inducing anode material, electrolyte and cathode material. The magnetic inducing anode material is prepared by dispersing lithium source, nickel source, cobalt source and manganese source into the solvent under the condition of magnetic induction, calcining and cooling, and forming nickel-cobalt-manganese gradient dispersed lithium-rich manganese-based anode material. The molar ratio of the nickel source, cobalt source and manganese source is 0.13:0.13:0.54. The electrolyte is prepared by adding ethylene carbonate, dimethyl carbonate and ethyl methyl carbonate as base solution, and then adding additives. The cathode material is a composite material made of graphene-coated lithium titanate. USE - Used as low-temperature starting lithium-ion battery. ADVANTAGE - A lithium-ion battery with excellent low-temperature start-up performance is formed through the combination of the anode, the cathode and the electrolyte solvent, which improves the lithium-ion diffusivity and electron mobility of lithium ions in a low-temperature environment, and efficiently overcomes the problems of difficult start-up, fast capacity decay, and short battery life of lithium-ion batteries in low-temperature environments.