▎ 摘　　要

NOVELTY - Preparation of chromic oxide-graphene nano sheet material involves uniformly dispersing graphene and chromate in pure water or aqueous-alcoholic solution, stirring, obtaining homogeneous solution, obtaining mixture, transferring obtained mixture to hydrothermal reaction kettle, reacting, filtering, washing and drying the product, obtaining chromium hydroxide hydrate nanosheet, calcining obtained chromium hydroxide hydrate oxide nanosheet under protection of argon gas or other inert gas. USE - Preparation of chromic oxide-graphene nano sheet material used in lithium ion battery material field. ADVANTAGE - The chromic oxide-graphene nano sheet material is economically prepared with high purity and specific surface area without polluting the environment, by a simple method. DETAILED DESCRIPTION - Preparation of chromic oxide-graphene nano sheet material involves uniformly dispersing 0.2-10 parts mass graphene and 1000-5000 parts mass chromate in pure water or aqueous-alcoholic solution, stirring for 0.5-24 hours, obtaining homogeneous solution, adjusting pH value to 1-8, stirring, obtaining mixture, transferring obtained mixture to hydrothermal reaction kettle at 110-300 degrees C, reacting for 1-100 hours, filtering, washing and drying the product, obtaining chromium hydroxide hydrate nanosheet, calcining obtained chromium hydroxide hydrate oxide nanosheet under the protection of argon gas or other inert gas at 200-1000 degrees C for 0.1-10 hours.