Structural and electrochemical properties of SnO2-carbon composite aerogels for Li-ion battery anode material

Nanostructured tin oxide-carbon composite aerogel material (SnO2/C) is synthesized using a sol-gel process followed by annealing treatment under N-2 atmosphere. Varying the temperature of annealing leads to differer textural properties and phases of the carbon/tin oxide material. The performance of this composite aerogel as a anode material for Li-ion battery is studied, and favorable retention properties are observed SnO2/C annealed r 500 degrees C. This study provides insight into the role of moderately inactive carbon-based porous materials i composites with SnO2 for improving the cyclability of tin oxide, an anode material that shows rapid fading Incorporation into composite networks of inactive porous carbon enhances the mechanical properties of the ti oxide, which in turn strongly improves the cycling stability in Li-ion battery applications. The material exhibit an initial charge capacity of 10(12) mAh g(-1) and retains 63% of its initial capacity after 50 cycles at a currer density of 637 mAh g(-1).