中文版 | English
Title

Surface spinel reconstruction to suppress detrimental phase transition for stable LiNi0.8Co0.1Mn0.1O2 cathodes

Author
Corresponding AuthorLu,Zhouguang
Publication Years
2022
DOI
Source Title
ISSN
1998-0124
EISSN
1998-0000
Abstract
Nickel-rich layered oxides are attractive cathode for lithium-ion batteries (LIBs) because of the high energy density and low cost. The critical problem is capacity fading caused by the highly reactive metastable phases under voltages of higher than 4.15 V. Herein, we find that facile Ar/H plasma treating could produce oxygen vacancies that will readily transform into homogeneous spinel layer (∼ 6 nm) on the LiNiCoMnO (NCM) surface after a few cycles of lithiation/delithiation procedure. Owing to the structural matching between spinel and layered structure, the diffusion of Li ions could remain fast upon cycling. Besides, the spinel layer is electrochemically inert, which guarantees surface stabilization and inhibits the detrimental phase transition from H2 to H3 at high voltages. Under the protection of the homogeneous spinel layer, the NCM electrode shows superior capacity retention of 91.2% after 200 cycles at the current density of 100 mA·g. This work proposes a novel strategy of surface reconstruction to stabilize nickel-rich layered oxide materials for LIBs. [Figure not available: see fulltext.].
Keywords
URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
Basic Research Project of the Science and Technology Innovation Commission of Shenzhen[JCYJ20200109141640095] ; Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials[ZDSYS20200421111401738] ; Leading Talents of Guangdong Province Program[2016LJ06C536] ; Guangdong-Hong Kong-Macao Joint Laboratory[2019B121205001] ; National Natural Science Foundation of China[21875097]
WOS Research Area
Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS Subject
Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS Accession No
WOS:000836110900001
Publisher
EI Accession Number
20223212552871
EI Keywords
Ions ; Lithium compounds ; Lithium-ion batteries ; Manganese compounds ; Metastable phases ; Nickel oxide ; Surface reconstruction
ESI Classification Code
Physical Chemistry:801.4 ; Inorganic Compounds:804.2 ; Physical Properties of Gases, Liquids and Solids:931.2
Scopus EID
2-s2.0-85135535116
Data Source
Scopus
Citation statistics
Cited Times [WOS]:3
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/375647
DepartmentDepartment of Materials Science and Engineering
Affiliation
1.Department of Materials Science and Engineering,Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials,Southern University of Science and Technology,Shenzhen,518055,China
2.Department of Mechanical Engineering,National University of Singapore,Singapore,117575,Singapore
3.Department of Mechanical Engineering,City University of Hong Kong,83 Tat Chee Avenue,999077,Hong Kong
First Author AffilicationDepartment of Materials Science and Engineering
Corresponding Author AffilicationDepartment of Materials Science and Engineering
First Author's First AffilicationDepartment of Materials Science and Engineering
Recommended Citation
GB/T 7714
Gan,Qingmeng,Qin,Ning,Li,Zhiqiang,et al. Surface spinel reconstruction to suppress detrimental phase transition for stable LiNi0.8Co0.1Mn0.1O2 cathodes[J]. Nano Research,2022.
APA
Gan,Qingmeng.,Qin,Ning.,Li,Zhiqiang.,Gu,Shuai.,Liao,Kemeng.,...&Lu,Zhouguang.(2022).Surface spinel reconstruction to suppress detrimental phase transition for stable LiNi0.8Co0.1Mn0.1O2 cathodes.Nano Research.
MLA
Gan,Qingmeng,et al."Surface spinel reconstruction to suppress detrimental phase transition for stable LiNi0.8Co0.1Mn0.1O2 cathodes".Nano Research (2022).
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