Preparation method and application of Pb2O7Sb2

The invention relates to the technical field of new energy batteries, in particular to a preparation method and application of Pb2O7Sb2. The preparation method comprises the following steps that soluble pentavalent antimonate is obtained, the soluble pentavalent antimonate is dissolved, a first component is obtained, and the temperature for dissolving the soluble pentavalent antimonate is 70 DEG C or above; dissolving lead nitrate to obtain a second component; mixing and stirring the dissolved first component and second component according to a molar ratio of 1: 1; adding an alkali component until no new precipitate is generated, and standing; and washing to be neutral, drying and filtering. The prepared Pb2O7Sb2 is high in energy density, good in low-temperature charge-discharge characteristic, high in safety and not prone to combustion and explosion, and can be widely applied to passenger cars, commercial vehicles, mine cars, energy storage, peak load shifting, iron towers and places with high safety requir