▎ 摘　　要

NOVELTY - Lithium-ion battery cathode material i.e. lithium-titanium-vanadate (I) is new. The titanium has all +4 valence. The vanadium has all +5 valence. (I) has an orthorhombic Li3.5Ge0.5V0.5O4structure, the space group is Pnma, and the unit cell parameters are a is equal to 10.87 A; b is equal to 10.87 Å; b is equal to 6.26 Å; c is equal to 5.13 Å; and α, β, γ are all equal and equal to 90 °. USE - (I) is useful in coating layer in cathode of lithium-ion batteries (claimed). ADVANTAGE - (I): has no phase transition during the lithium (I) intercalation/extraction process, and is a single-phase solid solution reaction with fast kinetics, excellent rate performance and long cycle life. DETAILED DESCRIPTION - Lithium-ion battery cathode material i.e. lithium-titanium-vanadate of formula (γ-Li3+xTixV1-xO4) (I) is new. The titanium has all +4 valence. The vanadium has all +5 valence. (I) has an orthorhombic Li3.5Ge0.5V0.5O4structure, the space group is Pnma, and the unit cell parameters are a is equal to 10.87 Å; b is equal to 6.26 Å; c is equal to 5.13 Å; and α, β, γ are all equal and equal to 90 °. X = 0.1-0.5. INDEPENDENT CLAIMS are included for: Preparation of (I); Lithium-ion battery cathode, comprising carrier in the sheet form, coating layer uniformly coated on the carrier, the coating layer comprises a conductive agent and the lithium-ion battery cathode material. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart of preparation of lithium-ion battery cathode material i.e. lithium-titanium-vanadate (I).