▎ 摘　　要

NOVELTY - A positive electrode material comprises reduced graphene oxide as framework, and MXene doped sulfur/cellulose nano-crystal (CNC) particles loaded in the framework with loading capacity of 3.2-3.6 mg/cm2. USE - Positive electrode material used in lithium-sulfur battery in aerospace application, satellites, space stations, electric vehicles and electronic products (all claimed). ADVANTAGE - The method is simple and easy to operate. The positive electrode material has excellent electrochemical performance. The lithium-sulfur battery has excellent rate performance and excellent cycle stability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: preparation of positive elctrode material, which involves adding MXene doped sulfur/CNC particles into the graphene oxide dispersion liquid for partial hydrothermal reduction and directional freezing, freeze-drying to obtain aerogel, and tableting the aerogel, and lithium-sulfur battery, which comprises positive electrode material.