Stabilizing the Nanostructure of SnO<sub>2</sub> Anodes by Transition Metals: A Route to Achieve High Initial Coulombic Efficiency and Stable Capacities for Lithium Storage.
basic_science · Level V
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- Record sourced from PubMed, PMID 28185334.
- Also identified by DOI 10.1002/adma.201605006.
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Abstract
To dramatically stabilize the nanostructure of Sn and achieve ultrahigh reversibility of conversion reactions in lithiated SnO<sub>2</sub> , a series of SnO<sub>2</sub> -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<sup>-1</sup> at 2 A g<sup>-1</sup> ), and ultralong cycling life (90.3% of capacity retention after 1300 cycles).