期刊
APPLIED SURFACE SCIENCE
卷 440, 期 -, 页码 91-98出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2017.12.263
关键词
In-situ growth; SnO2 nanosheets; 3D nanoarchitecture; Anode; Lithium-ion battery
类别
资金
- National Natural Science Foundation of China [21571157, U1604123, 51173170]
- Outstanding Young Talent Research Fund of Zhengzhou University [1521320001]
- Young Outstanding Teachers of University in Henan Province [2016-130]
- Open Project Foundation of Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) [2017-29]
- Nankai University
- Open Project Foundation of State Key Laboratory of Inorganic Synthesis and Preparation of Jilin University
A facile in-situ growth strategy is employ to achieving the two-dimensional SnO2 nanosheets/one-dimensional Cu(OH)(2) nanorods nanoarchitecture on Cu foil current collector (SnO2/Cu(OH)(2)/Cu foil), follow by modification of a uniform layer of graphene (G). Confine with the graphene layer and unique one-dimensional/two-dimensional the nanoarchitecture, the remarkably enhance electrical conductivity and structural stability of G/SnO2/Cu(OH)(2)/Cu foil leads to a high reversible capacity of 1080.6 mAh g(-1) at a current density of 200 mA g(-1), much better than the samples without graphene (512.6 mAh g(-1)) and Cu(OH)(2) nanorod (117.4 mAh g(-1)). Furthermore, G/SnO2/Cu(OH)(2)/Cu foil electrode shows high rate capacity (600.8 mAh g(-1) at 1 A g(-1)) and excellent cycling stability (1057.1 mAh g(-1) at 200 mA g(-1) even after 500 cycles). This work highlights that increasing surface and interface effects with desirable threedimensional nanoarchitecture can open a new avenue to electrochemical performance improvement in lithium-ion battery for SnO2-base anode. (C) 2018 Elsevier B.V. All rights reserved.
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