Nitrogen-doped carbon caging silicon nanoparticles for high performance lithium-ion battery anodes

Silicon is considered a valuable candidate for the anode material of lithium-ion batteries (LIBs) based on its high theoretical specific capacity and abundant resources in nature. Unfortunately, rapid capacity decay associated with volume expansion during cycling hinders the use of silicon in electrode materials for LIBs. Herein, we report nitrogen-doped carbon caging silicon nanoparticles ([email protected] cage) via simply coating and acid...