Engineering sodium-rich manganese oxide with robust tunnel structure for high-performance sodium-ion battery cathode application

Engineering sodium-rich manganese oxide with robust tunnel structure for high-performance sodium-ion battery cathode application

•Tunnel-structured Na0.6MnO2 is successfully prepared with the aid of CTAB guidance.•CTAB-Na0.6MnO2 material with robust framework shows fast Na+ diffusion kinetics.•Engineered Na0.6MnO2 cathode exhibits outstanding capacity and durable cycling. Layer sodium-based manganese oxides are one of potenti...

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Veröffentlicht in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2021-08, Vol.417, p.128097, Article 128097
Hauptverfasser: Zhang, Jian, Yuan, Hongyan, Huang, Yanping, Kan, Shuting, Wu, Yufeng, Bu, Manman, Liu, Yang, He, Ping, Liu, Hongtao
Format: Artikel
Sprache:eng
Schlagworte:
Cathode material
Sodium-based manganese oxide
Sodium-ion battery
Tolerance of deformation
Tunnel structure
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Zusammenfassung:•Tunnel-structured Na0.6MnO2 is successfully prepared with the aid of CTAB guidance.•CTAB-Na0.6MnO2 material with robust framework shows fast Na+ diffusion kinetics.•Engineered Na0.6MnO2 cathode exhibits outstanding capacity and durable cycling. Layer sodium-based manganese oxides are one of potentially applicable sodium-ion battery (SIB) cathode materials mainly because of their lower cost and relatively reversible Na+ intercalation/extraction attributes. However, unavoidable Jahn-Teller effect arisen from manganese redox reactions causes serious lattice distortion, leading to distinct capacity fade. NaxMnO2 (x 
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2020.128097