▎ 摘　　要

NOVELTY - A lithium-ion cell comprises a cathode comprising a graphene-incorporated iron oxyfluoride composite (FeOF/G), and an anode. The lithium-ion cell has specific energy of at least 180 Wh/kg under a charge rate of at least 6 C. USE - Lithium-ion cell used for electromechanical engineering, and rechargeable battery system. Uses include but are not limited to portable electronic device, electric vehicle, energy storage device, and other electronic device. ADVANTAGE - The lithium-ion cell has excellent charging rate, high specific capacity, improved cycle life, and provides graphene with improved electroconductivity. The electrification of transportation is capable of increasing the thermal efficiency of energy conversion, reducing the dependency on imported foreign oil, and decreased the emission. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for cathode.