▎ 摘　　要

NOVELTY - Preparing stannous sulfide/sulfur nitrogen double-doped graphene material negative electrode involves dispersing the ethanol solution of stannous chloride (SnCl2.2H2O) in the ethanol solution of graphene oxide (GO), then adding ethanol solution of thiourea, stirring to mix uniformly, filtering and drying the suspension obtained, the sample after drying in the hydrogen (H2/Ar) mixed gas stream, raising the temperature to 650±100 ℃, for heat reduction treatment, naturally cooling to room temperature, according to the mol ratio of stannous chloride (SnCl2.2H2O) and thiourea is 1:20, to obtain the stannous sulfide/sulfur nitrogen double-doped graphene material negative electrode. USE - Method for preparing stannous sulfide/sulfur nitrogen double-doped graphene material negative electrode. ADVANTAGE - The method has excellent cycle stability and multiplying power performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for use of the stannous sulfide sulphur nitrogen double-doped graphene lithium ion battery negative electrode in lithium ion battery.