V2O5 HOLLOW MICRON WIRE BALL WITH NANOWIRE THREE-DIMENSIONAL WINDING STRUCTURE AND PREPARATION METHOD THEREFOR AND USE THEREOF

摘要

The present invention relates to a V2O5 hollow micron wire ball with a nanowire three-dimensional winding structure and a preparation method therefor. The V2O5 hollow micron wire ball is prepared by using the following method, comprising the following steps: (1) weighing a vanadium pentoxide sol, and diluting in deionized water to obtain a solution; (2) adding an organic solution to the solution obtained in step (1) as a solvent; (3) adding trihydroxymethyl aminomethane to the solution obtained in step (2), and performing ultrasonic treatment for 0.5-2 h; (4) transferring the reactants obtained in step (3) into a reaction kettle for a hydrothermal reaction, taking the reactants out of the reaction kettle, and naturally cooling to room temperature; (5) centrifugally filtering the products obtained in step (4), washing with absolute ethyl alcohol, and drying in an oven to obtain a blue precursor powder; and (6) putting the products obtained in step (5) into a muffle furnace for calcining to obtain the V2O5 hollow micron wire ball. The present invention has the beneficial effects of exhibiting an excellent cycle stability and high rate characteristics, and the V2O5 hollow micron wire ball is a potential application material for a lithium ion battery of high magnification rate and long life.