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Published on: November 11, 2013
Stabilizing the Nanostructure of SnO2 Anodes by Transition Metals: A Route to Achieve High Initial Coulombic
Renzong Hu1, Yunpeng Ouyang1, Tao Liang1
1Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China.
Abstract:
To dramatically stabilize the nanostructure of Sn and achieve ultrahigh reversibility of conversion reactions in lithiated SnO2 , a series of SnO2 -transition metal-graphite ternary nanocomposites are produced by ball milling, demonstrating high initial Coulombic efficiencies up to 88.6%, high reversible capacity (>700 mAh g-1 at 2 A g-1 ), and ultralong cycling life (90.3% of capacity retention after 1300 cycles).

