▎ 摘　　要

NOVELTY - Method for preparing graphite, involves subjecting chitosan hydrochloride to laser-induced reduction to make a laser-induced graphene preparation. Molecular weight of the chitosan hydrochloride is determined. The molecular weight of the chitosan hydrochloride is 550-650 and deacetylation degree is more than 80%. A laser is directly used for laser induced reduction of a chitosan hydrochloride powder. Chitosan hydrochloride solution is obtained. Vacuum defoaming process is performed. A dry file is coated on a mold. The laser induced reduction of film like sample is performed. USE - The method is useful for preparation of laser-induced graphite, which is useful in super capacitor, sensor, catalytic, environment repairing and gas adsorption. ADVANTAGE - Preparation method of laser-induced graphite, without any chemical preparation in the process. The method is simple and easy, and suitable for industrial application. DESCRIPTION OF DRAWING(S) - The drawing shows a photographic view of the preparation method of laser-induced graphite. (Drawing includes non-English language text).