▎ 摘　　要

NOVELTY - Pine branched hafnium oxide graphene sulfur gel structure material is attached to the surface of the reduced graphene oxide to form a crosslinked gel structure, where gel structure is loaded with a sulfur element. USE - Pine branched hafnium oxide graphene sulfur gel structure material used in the preparation of a lithium sulfur battery and for preparing a cathode material for a lithium-sulfur battery (all claimed). ADVANTAGE - The pine branched hafnium oxide graphene sulfur gel structure material improves the electro-chemical performance of lithium sulfur batteries. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for preparing pine branched hafnium oxide graphene sulfur gel structure material, which involves using reduced graphene oxide-hafnium precursor is prepared by hydrothermal reduction reaction of graphene oxide and a hafnium salt, and in an inert atmosphere, perfroming pyrolysis of reduced graphene oxide-rhenium precursor to obtain reduced graphene oxide-pine branched rhenium oxide gel, and melt-diffusing elemental sulfur onto the reduced graphene oxide-pine branched osmium oxide gel to obtain pine branched hafnium oxide graphene sulfur gel structure material; and (2) a battery cathode material, which comprises pine branched rhenium oxide graphene sulfur gel structure material, or the pine branched rhenium oxide graphene sulfur gel structure material.