▎ 摘　　要

NOVELTY - The material comprises active material elemental silicon comprising spherical granule, reduction-oxidation graphene and polyaniline, where the material is activated in a simple substance silicon with a polyaniline layer and reduction-oxidation graphene layer. USE - Battery cathode material for a mobile electronic device. ADVANTAGE - The material has high charge-discharge capacity and better circulation performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a battery negative electrode (2) a battery cathode material preparation method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a battery cathode material.