Flexible ‘graphene paper’ electrodes displayed poor electrochemical performance compared to powder composed of reduced graphene oxide platelets, in spite of the good conductivity and mechanical stability of such paper samples. [168] However, when silicon nanoparticles were mixed with reduced graphene oxide platelets in a paper-like material, a storage capacity > 2200 mAhg − 1 after 50 cycles and > 1500 mAhg − 1 after 200 cycles was obtained recently. [169] It was stated that the uniform dispersion of silicon particles in the composites and the reconstitution of graphene platelets to from a continuous, highly conducting 3D network are important for the high storage capacities.