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Effects of Zn doping on the electrochemical performance and tap density of Li4Ti5O12
Wang Chen-Yun; Hua Ning; Kang Xue-Ya; Tuerdi; Han Ying
2010
发表期刊Gongneng Cailiao/Journal of Functional Materials
ISSN10019731
卷号41期号:UPPL. 1页码:126-129,135
摘要The Zn-doping Li4-2xZn3xTi5-xO12(0 &le 3x &le 0.2) as anode materials for lithium-ion batteries were synthesized by a solid-state method. The morphology and microstructure of the samples were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), mastersizer 2000 laser granularity analysis (MS2000), and tap density analysis. The relative capacity and the cycle characteristics of the Zn-doping Li4Ti5O12 have been tested, and then the samples were characterized by AC impedance spectroscopy and cyclic voltammetry. The Zn2+ did not change the crystal structure, but enhanced the tap density of the materials. The results showed that the Zn-doping reduced the polarized voltage and improved the electrochemical performance of the materials. When the ratio of the n(Li):n(Zn):n(Ti) was 3.933:0.1:4.967, the first charge capacity of the Zn-doping Li4Ti5O12 was 160mAh/g with a current density 1C, and after 60 cycles it was still 138mAh/g.
收录类别EI
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/1833
专题材料物理与化学研究室
作者单位Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumuqi 830011, China;Xinjiang Key Laboratory of Electronic Information Materials and Devices, Urumuqi 830011, China;Graduate University, Chinese Academy of Sciences, Beijing 100049, China
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Wang Chen-Yun,Hua Ning,Kang Xue-Ya,et al. Effects of Zn doping on the electrochemical performance and tap density of Li4Ti5O12[J]. Gongneng Cailiao/Journal of Functional Materials,2010,41(UPPL. 1):126-129,135.
APA Wang Chen-Yun,Hua Ning,Kang Xue-Ya,Tuerdi,&Han Ying.(2010).Effects of Zn doping on the electrochemical performance and tap density of Li4Ti5O12.Gongneng Cailiao/Journal of Functional Materials,41(UPPL. 1),126-129,135.
MLA Wang Chen-Yun,et al."Effects of Zn doping on the electrochemical performance and tap density of Li4Ti5O12".Gongneng Cailiao/Journal of Functional Materials 41.UPPL. 1(2010):126-129,135.
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