Cathode Materials: Atomic Insights into the Enhanced Surface Stability in High Voltage Cathode Materials by Ultrathin Coating (Adv. Funct. Mater. 7/2017)

Atomic layer deposition of Al2O3 is employed as ultrathin coating on LiNi0.5Mn1.5O4, a high voltage cathode in Li‐ion batteries. X‐ray absorption spectroscopy and scanning transmission electron microscopy electron energy loss spectroscopy show that the coating suppresses Mn2+ formation on the surfac...

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Bibliographic Details
Published in:Advanced functional materials 2017-02, Vol.27 (7), p.n/a
Main Authors: Fang, Xin, Lin, Feng, Nordlund, Dennis, Mecklenburg, Matthew, Ge, Mingyuan, Rong, Jiepeng, Zhang, Anyi, Shen, Chenfei, Liu, Yihang, Cao, Yu, Doeff, Marca M., Zhou, Chongwu
Format: Article
Language:English
Subjects:
Absorption spectroscopy
Aluminum oxide
Atomic layer epitaxy
Cathodes
Coating
Deceleration
Electric potential
Electrode materials
Electron energy
Electron energy loss spectroscopy
high voltage cathodes
LiNi0.5Mn1.5O4
Lithium
Lithium batteries
lithium ion batteries
Materials science
Mn2+ evolution
Rechargeable batteries
Scanning electron microscopy
Scanning transmission electron microscopy
Spectrum analysis
surface modifications
Surface stability
Transmission electron microscopy
X-rays
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Summary:Atomic layer deposition of Al2O3 is employed as ultrathin coating on LiNi0.5Mn1.5O4, a high voltage cathode in Li‐ion batteries. X‐ray absorption spectroscopy and scanning transmission electron microscopy electron energy loss spectroscopy show that the coating suppresses Mn2+ formation on the surface and decelerates impedance buildup. The detailed analysis by Chongwu Zhou and co‐workers is shown in article number 1602873.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201770042