Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/77669
Title: Multifunctional NiTiO3 nanocoating fabrication based on the dual-Kirkendall effect enabling a stable cathode/electrolyte interface for nickel-rich layered oxides
Authors: Xu, M 
Fei, L 
Zhu, SC 
Lu, W
Lai, Y
Zhang, Z
Lam, CH 
Huang, H 
Issue Date: 2018
Publisher: Royal Society of Chemistry
Source: Journal of materials chemistry A, 2018, v. 6, no. 6, p. 2643-2652 How to cite?
Journal: Journal of materials chemistry A 
Abstract: Surface modification is an essential step in engineering high performance nickel-rich layered (NLO) cathode materials that can withstand the increasingly harsh environment encountered in lithium-ion batteries. However, most traditional technologies suffer disadvantages such as low diffusion kinetics, processing difficulties and/or compatibility issues. Here, based on the dual-Kirkendall effect, we report an efficient, self-guided way for fabricating a multifunctional NiTiO3 (NTO) nanocoating to stabilize the cathode/electrolyte interface for NLO. The NTO nanocoating can epitaxially and chemically bond to the surface framework of NLO particles and eliminate surface lithium residues by evolving into a Li-Ni-Ti-O mixed phase coating that is mainly composed of Li2-xTiO3. Taking full advantage of such a novel multifunctional NTO nanocoating, the structural degradation in NLO cathodes can be effectively suppressed, leading to excellent rate capability and cyclability. This method provides insights into novel surface chemistry that prevents high performance layered electrode materials from structural degradation.
URI: http://hdl.handle.net/10397/77669
ISSN: 2050-7488
EISSN: 2050-7496
DOI: 10.1039/c7ta10308e
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

3
Citations as of Sep 18, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.