▎ 摘 要
NOVELTY - A composition comprises an active material comprising silicon-based composite nanoparticles comprising silicon-cellulose nanofibers core-shell nanoparticles, silicon-silicon carbide-carbon core-shell nanoparticles, silicon-graphene core-shell nanoparticles, silicon oxide nanoparticles and/or silicon oxide-graphene core-shell nanoparticles, and a graphene-based material chosen from graphene oxide, reduced graphene oxide and graphene, and a binder. USE - Composition is used for forming negative electrode in lithium secondary battery (all claimed). Uses include but are not limited to electric vehicle, camcorder, notebook computer and phone. ADVANTAGE - The composition enables manufacture of negative electrode having excellent uniformity. The battery provided with the electrode is safe, and has excellent charging-discharging property and cycle characteristics, improved density and performance, and high specific energy. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for negative electrode.