▎ 摘　　要

NOVELTY - Soft carbon with multi-interface structure, is claimed. The specific surface area of the obtained multi-interface soft carbon is about 10 m2/g, the tap density is between 0.7-1.1 g/ml. The added highly conductive nanomaterials are uniformly embedded and dispersed inside the soft carbon, there are large number of connected interface structures between the nanomaterials with higher crystallinity and the soft carbon matrix with lower crystallinity, and the soft carbon and surface are presented with pleated structure. USE - The soft carbon is useful for sodium ion battery cathode material (claimed). ADVANTAGE - The soft carbon exhibits excellent reversible capacity and rate performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing soft carbon with multi-interface structure.