期刊
ELECTROCHIMICA ACTA
卷 182, 期 -, 页码 327-333出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.09.102
关键词
Zinc stannate; Double-shell hollow microcubes; Amorphous; Anode; Lithium ion batteries
资金
- National Basic Research Program of China [2012CB933103]
- National Natural Science Foundation of China [51171158, 51371154]
- Fundamental Research Funds for the Central Universities of China [201312G003]
Amorphous ZnSnO3 double-shell and yolk-shell hollow microcubes were synthesized by calcination of their corresponding ZnSn(OH)(6) precursors pre-prepared through a facile chemical solution method in argon. The as-prepared amorphous ZnSnO3 double-shell hollow microcubes have an average edge length of 1.6 mm. When used as the anode materials, amorphous ZnSnO3 double-shell hollow microcubes (D-ZnSnO3) reveal better electrochemical properties than ZnSnO3 yolk-shell counterparts (Y-ZnSnO3). D-ZnSnO3 anodes can retain a high reversible capacity of 741 mA h g(-1) after 50 cycles with a coulombic efficiency of 99% at 100 mA g(-1). The amorphous feature and unique box-in-box hollow architecture of D-ZnSnO3 play a key role in their excellent electrochemical properties. (C) 2015 Elsevier Ltd. All rights reserved.
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