Capillary-Induced Ge Uniformly Distributed in N-Doped Carbon Nanotubes with Enhanced Li-Storage Performance.

摘要: Germanium (Ge) is a prospective anode material for lithium-ion batteries, as it possesses large theoretical capacity, outstanding diffusivity, and excellent electrical conductivity. Ge suffers from drastic capacity decay poor rate performance, however, owing to its low conductivity huge volume expansion during cycling processes. Herein, novel strategy has been developed synthesize Ge@N-doped carbon nanotubes (Ge@N-CNTs) composite with nanoparticles uniformly distributed in the N-CNTs by using capillary action. This unique structure could effectively buffer expansion. When evaluated an material, Ge@N-CNTs demonstrate enhanced stability capabilities.