▎ 摘　　要

NOVELTY - Graphite oxide solution is ultrasonically dispersed uniformly, and reducing agent is added and heated to obtain graphene hydrogel. Obtained product is frozen-dried to obtain graphene gel (a). Obtained gel is added to mold with a needle puncture, and graphite oxide/reducing agent mixture is poured to obtain graphene gel (b). Obtained graphene gel (a) and graphene gel (b) are recycled to obtain high-density multi-graphene gelling material. USE - Preparation of high-density multi-graphene gelling material (claimed). ADVANTAGE - The method efficiently provides high-density multi-graphene gelling material having excellent mechanical strength, electroconductivity and elasticity. DETAILED DESCRIPTION - Graphite oxide solution is ultrasonically dispersed uniformly, and reducing agent is added and heated to obtain graphene hydrogel. The obtained product is frozen-dried to obtain graphene gel (a). The obtained gel is added to a mold with a needle puncture, and graphite oxide/reducing agent mixture is poured to obtain graphene gel (b). The obtained graphene gel (a) and graphene gel (b) are recycled to obtain high-density multi-graphene gelling material. The obtained gel is ultrasonically dispersed, and an adhesive solution is uniformly added. The resultant material is drip-coated on an electrode surface, dried and subjected to electrochemical workstation to test the electrochemical properties.