Dispersing SnO2 nanocrystals in amorphous carbon as a cyclic durable anode material for lithium ion batteries
By Hu, Renzong; Sun, Wei; Zeng, Meiqin & Zhu, Min
Published in Journal of Energy Chemistry
NULL
2014
Abstract
We demonstrate a facile route for the massive production of SnO2/carbon nanocomposite used as high-capacity anode materials of next-generation lithium-ion batteries. The nanocomposite had a unique structure of ultrafine SnO2 nanocrystals (~5 nm, 80 wt%) homogeneously dispersed in amorphous carbon matrix. This structure design can well accommodate the volume change of Li+ insertion/desertion in SnO2, and prevent the aggregation of the nanosized active materials during cycling, leading to superior cycle performance with stable reversible capacity of 400 mAh/g at a high current rate of 3.3 A/g.
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