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Electrochemical lithium storage of Li4Ti5O12/NiO nanocomposites for high-performance lithium-ion battery anodes
Zhang, Congcong1; Shao, Dan2; Gao, Qiongzhi1; Lu, Yuheng1; Liu, Zuotao1; Yu, Xiaoyuan1; Fang, Yueping1; Chen, Dongyang3
2015-06-01
Source PublicationJOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume19Issue:6Pages:1859-1866
AbstractLi4Ti5O12/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.
SubtypeArticle
KeywordLi4ti5o12 Nio Anode Material Lithium-ion Battery Electrochemical Performance
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s10008-015-2827-6
WOS Subject ExtendedElectrochemistry
WOS KeywordSPINEL LI4TI5O12 ; ELECTRODE MATERIALS ; TITANIA NANOTUBES ; COMPOSITE ANODE ; HIGH-ENERGY ; NIO ; NANOCRYSTALLINE ; NANOPARTICLES ; STABILITY ; CAPACITY
Indexed BySCI
Language英语
WOS SubjectElectrochemistry
WOS IDWOS:000354622700030
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/9087
Collection中国科学院广州能源研究所
Affiliation1.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
Recommended Citation
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.
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