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Facile Synthesis of SnO 2 /Fe 2 O 3 Hollow Spheres and their Application as Anode Materials in Lithium‐ion Batteries
Author(s) -
Jin Rencheng,
Guan Yanshuai,
Liu Hong,
Zhou Junhao,
Chen Gang
Publication year - 2014
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201402218
Subject(s) - anode , materials science , lithium (medication) , electrochemistry , chemical engineering , ion , nanoparticle , spheres , electrode , nanocomposite , phase (matter) , nanotechnology , battery (electricity) , lithium ion battery , chemistry , organic chemistry , medicine , power (physics) , physics , quantum mechanics , astronomy , engineering , endocrinology
Hierarchical SnO 2 /Fe 2 O 3 hollow spheres are fabricated through the solvothermal method accompanied by a facile solution procedure in the absence of any surfactant. The composition, crystalline structure, morphology, and electrochemical properties of the synthesized product are investigated systematically. The SnO 2 /Fe 2 O 3 as an anode material in Li‐ion batteries demonstrates a better reversible capacity and very good rate capability and cyclic performance compared with pure‐phase SnO 2 hollow spheres. The greatly enhanced Li‐ion storage capability of the SnO 2 /Fe 2 O 3 hollow spheres is believed to result from the synergy of the two materials, SnO 2 and Fe 2 O 3 , which provides breathable aggregates for effective buffering of the drastic volume changes during the charge/discharge process. This work reports a promising method for the design and preparation of nanocomposite electrodes for Li‐ion batteries.