▎ 摘　　要

NOVELTY - Preparing heteroatom-doped graphene involves heating the mixture of the alkali metal supply source and heteroatom precursor under the inactive atmosphere. The heteroatom is doped to the alkali metal supply source. The heteroatom precursor does not include the hydroxy radical. USE - Method for preparing heteroatom-doped graphene used as cathode material for lithium ion battery and as catalyst for oxygen reduction reaction (all claimed). ADVANTAGE - The method enables to prepare heteroatom-doped graphene in simple and cost-effective manner under mild reaction conditions that has excellent electrochemical characteristics.