▎ 摘　　要

NOVELTY - Preparation of graphene-modified manganese dioxide material , involves (1) mixing electrolytic manganese dioxide and graphene, (2) adding ethanol to the obtained mixture, ball milling for 1 hour, cooling, and (3) separating the grinding ball from the graphene-modified electrolytic manganese dioxide material with a sieve. USE - Preparation of graphene-modified manganese dioxide material for lithium manganese battery (claimed). ADVANTAGE - The method is simple and easy, economical and environmentally-friendly, easy to scale, with wide application prospect, and improves conductivity and multiplying power performance of product.