Electrochemical lithium storage of Li4Ti5O12/NiO nanocomposites for high-performance lithium-ion battery anodes

doi:10.1007/s10008-015-2827-6

GIEC OpenIR > 中国科学院广州能源研究所

	Electrochemical lithium storage of Li4Ti5O12/NiO nanocomposites for high-performance lithium-ion battery anodes
	Zhang, Congcong 1; Shao, Dan 2; Gao, Qiongzhi 1; Lu, Yuheng 1; Liu, Zuotao 1; Yu, Xiaoyuan 1; Fang, Yueping 1; Chen, Dongyang 3
	2015-06-01
发表期刊	JOURNAL OF SOLID STATE ELECTROCHEMISTRY
卷号	19 期号:6 页码:1859-1866
摘要	Li4Ti5O12/NiO (LTO/NiO) composites with various NiO contents were prepared successfully as anode materials for high-performance lithium-ion battery. The preparation procedure consisted of high-energy ball milling, high-temperature calcination, and solution coating in succession. Several techniques such as X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), galvanostatic charge-discharge, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) were applied to fully investigate the micromorphology, composition structure, and electrochemical performances of the LTO/NiO composites. It was found that all the LTO/NiO composites showed higher discharge capacity than the pure LTO anode within the representative 20 cycles. The LTO/5 wt.% NiO, which had the largest specific surface area of 2.1229 m(2) g(-1) among all the LTO/NiO composites, delivered a capacity of 203 mAh g(-1) in a voltage window of 0.5-3.0 V at 1 C rate and retained a capacity of 176 mAh g(-1) after 100 cycles. The CV and EIS analysis indicated that the charge/discharge processes of LTO/NiO composites included the Li+ diffusion into or out of LTO phase and the redox reaction of NiO phase. The results demonstrate that the surface modification of LTO with small amounts of NiO nanoparticles can decrease the overall charge transfer resistance by forming in situ the electron-conductive Ni, leading to the improved electrochemical behavior of the composites.
文章类型	Article
关键词	Li4ti5o12 Nio Anode Material Lithium-ion Battery Electrochemical Performance
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1007/s10008-015-2827-6
研究领域[WOS]	Electrochemistry
关键词[WOS]	SPINEL LI4TI5O12 ; ELECTRODE MATERIALS ; TITANIA NANOTUBES ; COMPOSITE ANODE ; HIGH-ENERGY ; NIO ; NANOCRYSTALLINE ; NANOPARTICLES ; STABILITY ; CAPACITY
收录类别	SCI
语种	英语
WOS类目	Electrochemistry
WOS记录号	WOS:000354622700030
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/9087
专题	中国科学院广州能源研究所
作者单位	1.South China Agr Univ, Coll Sci, Inst Biomat, Guangzhou 510642, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
推荐引用方式 GB/T 7714	Zhang, Congcong,Shao, Dan,Gao, Qiongzhi,et al. Electrochemical lithium storage of Li4Ti5O12/NiO nanocomposites for high-performance lithium-ion battery anodes[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2015,19(6):1859-1866.
APA	Zhang, Congcong.,Shao, Dan.,Gao, Qiongzhi.,Lu, Yuheng.,Liu, Zuotao.,...&Chen, Dongyang.(2015).Electrochemical lithium storage of Li4Ti5O12/NiO nanocomposites for high-performance lithium-ion battery anodes.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,19(6),1859-1866.
MLA	Zhang, Congcong,et al."Electrochemical lithium storage of Li4Ti5O12/NiO nanocomposites for high-performance lithium-ion battery anodes".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 19.6(2015):1859-1866.