期刊
JOURNAL OF POWER SOURCES
卷 251, 期 -, 页码 14-19出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2013.11.032
关键词
Silver-coated nanosheets; Layered double hydroxide; Anode; Electrochemical performance; Secondary alkaline zinc battery
资金
- Natural Science Foundation of China [21371180, 91023031]
- Doctoral Fund of Ministry of Education of China [20130162110018]
- Science and Technology Project of Changsha city [k1303015-11, k1203014-11]
Silver-coated layered double hydroxide (Ag-coated LDH) nanosheets are successfully prepared by a facile silver mirror reaction and their electrochemical performance has been evaluated as anode materials for Ni-Zn secondary batteries. The microstructure and morphology of as-prepared Ag-coated Zn/Al-LDH are investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). As anode material for Ni-Zn secondary batteries, Ag-coated Zn/Al-LDH exhibits high specific capacity (400 mAh g(-1)), good charge discharge properties and excellent cycling performance, which is attributed to the effect of the electron conductivity improvement by the Ag coating on the surface of Zn/Al-LDH nanosheet This newly designed Ag-coated Zn/AI-LDH may offer a promising anode candidate for high-performance Ni-Zn secondary batteries. (C) 2013 Elsevier B.V. All rights reserved.
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