Reduced graphene oxide-encaged submicron-silicon anode interfacially stabilized by Al₂O₃ nanoparticles for efficient lithium-ion batteries.

ABSTRACT: Silicon-carbon composites have been recognized as some of the most promising anode candidates for advancing new-generation lithium-ion batteries (LIBs). The development of high-efficiency silicon/graphene anodes through a simple and cost-effective preparation route is significant. Herein, by using micron silicon as raw material, we designed a mesoporous composite of silicon/alumina/reduced graphene oxide (Si/Al₂O₃/RGO) via a two-step ball milling combined annealing process. Commercial Al₂O₃ nanoparticles are introduced as an interlayer due to the toughening effect, while RGO nanosheets serve as a conductive and elastic coating to protect active submicron silicon particles during lithium alloying/dealloying reactions. Owing to the rational

SUBMITTER: Tan X 

PROVIDER: S-EPMC11002566 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature