Novel Strategy of Increased Surface Area of Honeycomb-shaped LiNi0.5Mn0.5O2 Cathode Materials for Lithium-ion Batteries

Microporous honeycomb-shaped LiNi0.5Mn0.5O2 (H-LNMO) cathode materials were prepared by a simple sol-gel method using surfactants. Scanning electron microscopy images of the prepared LNMO show that the pore size and wall thickness are approximately 3.3 µm and 233 nm, respectively. The honeycomb-shap...

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Veröffentlicht in:Chemistry letters 2020, Vol.49 (10), p.1167-1170
Hauptverfasser: Seon-Jin, Lee, Ji-Woong Shin, Yun-Chae Nam, Seong-Jae, Kim, Jong-Tae Son
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Sprache:eng
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Zusammenfassung:Microporous honeycomb-shaped LiNi0.5Mn0.5O2 (H-LNMO) cathode materials were prepared by a simple sol-gel method using surfactants. Scanning electron microscopy images of the prepared LNMO show that the pore size and wall thickness are approximately 3.3 µm and 233 nm, respectively. The honeycomb-shaped LNMO (5.33 m2/g) has a larger specific surface area than does the conventional nano-sized LNMO (4.50 m2/g). The LNMO with a larger surface area shows an enhancement in discharge capacity for all C-rates compared with conventional nano-sized LNMO.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.200279