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Stabilizing the Nanostructure of SnO 2 Anodes by Transition Metals: A Route to Achieve High Initial Coulombic Efficiency and Stable Capacities for Lithium Storage
Author(s) -
Hu Renzong,
Ouyang Yunpeng,
Liang Tao,
Wang Hui,
Liu Jun,
Chen Jun,
Yang Chenghao,
Yang Liuchun,
Zhu Min
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201605006
Subject(s) - faraday efficiency , materials science , nanostructure , lithium (medication) , anode , transition metal , nanotechnology , nanocomposite , catalysis , electrode , chemistry , medicine , endocrinology , biochemistry
To dramatically stabilize the nanostructure of Sn and achieve ultrahigh reversibility of conversion reactions in lithiated SnO 2 , a series of SnO 2 –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).
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