Cr2O3/carbon nanosheet composite with enhanced performance for lithium ion batteries

摘要

A Cr2O3/carbon nanosheet composite is directly synthesized by solution combustion synthesis using chromium nitrate as the chromium source and glucose as the carbon source. The Cr2O3/carbon nanosheet composite serving as an anode material for lithium ion batteries has been studied, exhibiting higher cycling and rate performance than pure Cr2O3. The carbon in the composite not only inhibits the growth of Cr2O3 particles, but also improves the electrical conductivity of Cr2O3 and buffers the volume change during the lithium ion insertion/extraction process, which enhances the electrochemical performance.