▎ 摘　　要

NOVELTY - An explosive graphene electronic cathode comprises metal or graphite based cathode, where graphene layer is further provided on surface of electron-emitting portion of the base cathode and the graphene layer is integrally fastened with the surface of electron-emitting portion of the base cathode, so as to constitute the explosive graphene electronic cathode. USE - Explosive graphene electronic cathode. ADVANTAGE - The explosive graphene electronic cathode is prepared in a rapid, reliable, cost-effective and highly efficient manner at short period for time with easy suitability for industrial production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing an explosive graphene electronic cathode.