▎ 摘　　要

NOVELTY - The material (10) comprises a layer of defect free graphene (12) and binder system (16). The active phase (14) proximate a surface of layer of defect free graphene. The first surface opposite a second surface of a second layer of defect free graphene. The active phase has a active nanoparticles. The active nanoparticles are selected from a group consisting of silicon, germanium, metals, sulfides, phosphides, and selenides. The active nanoparticles are silicon nanoparticles. The silicon nanoparticles are present at a mass loading of 47 percentage. USE - Material for use in electrode in an electrochemical storage device. ADVANTAGE - Improved tolerance to a large volume expansion, increases a overpotential needed to insert and extract a ions and low cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for making an active phase containing defect free graphene material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of material. Material (10) Defect free graphene (12) Active phase (14) Binder system (16)