Highly Ordered Mesoporous Antimony-Doped SnO2 Materials for Lithium-ion Battery

作者：Park Gwi Ok^*; Hyung Eunbyeol; Shon Jeong Kuk; Kim Hansu; Kim Ji Man

来源：Nano, 2015, 10(6): 1550090.

DOI：10.1142/S1793292015500903

• Lithium-ion battery
• anode material
• mesoporous
• tin oxide
• antimony-doped tin oxide

Highly ordered mesoporous antimony-doped tin oxide (ATO) materials, containing different amount of antimony in the range of 0-50 mol%, are prepared via a nanoreplication method using a mesoporous silica template. The mesoporous ATO materials thus obtained exhibit high electrical conductivity, high reversible capacity, superior cycle stability and good rate capability as anode materials for lithium-ion batteries, compared to those of pure mesoporous tin oxide. Amongst the ATO materials in this work, the mesoporous ATO material with 10 mol% of antimony has highest discharge capacity of 1940 mAhg(-1) (charge capacity of 1049) at the 1st cycle, best cycle performance (716 mAhg(-1) at 100th cycle) and excellent rate capability, which are probably due to the enhanced electrical conductivity as well as reduced crystalline size.

• 出版日期2015-8