▎ 摘　　要

NOVELTY - The material has a hollow carbon (1) and a silicon material (2) that are fixed with a negative electrode. The hollow carbon is provided with a hollow inner core (11) and a carbon shell layer (12). The shell layer is formed with a hole (13). An outer shell layer is provided with multiple single-layered graphene parts. The multiple single-layered graphene parts are stacked along radius direction of the hollow carbon, where the multiple single-layered graphene parts are arranged in a ring shaped-structure. USE - Material for a negative electrode of a lithium-ion battery (claimed). ADVANTAGE - The material improves the utilization efficiency of carbon, the capacity and circulation capability of the material, and has excellent anti-expansion performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: a method for preparing of negative electrode material; and a lithium-ion battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the material for negative electrode of lithium-ion battery. 1Hollow carbon 2Silicon material 10Negative electrode material 11Hollow inner core 12Carbon shell layer 13Hole