Mitigating the P2–O2 phase transition of high-voltage P2-Na 2/3 [Ni 1/3 Mn 2/3 ]O 2 cathodes by cobalt gradient substitution for high-rate sodium-ion batteries

High-voltage P2-Na 2/3 [Ni 1/3 Mn 2/3 ]O 2 as a high energy density cathode for sodium-ion batteries (SIBs) has attracted considerable attention. But the unfavorable P2–O2 phase transition and electrode/electrolyte side reactions easily occur when charged above 4.2 V ( vs. Na/Na + ), resulting in th...

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Veröffentlicht in:	Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2019-03, Vol.7 (9), p.4705-4713
Hauptverfasser:	Hou, Peiyu, Li, Feng, Wang, Yangyang, Yin, Jiangmei, Xu, Xijin
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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