Stabilized Co3+/Co4+ Redox Pair in In Situ Produced CoSe2−x‐Derived Cobalt Oxides for Alkaline Zn Batteries with 10 000‐Cycle Lifespan and 1.9‐V Voltage Plateau

In aqueous alkaline Zn batteries (AZBs), the Co3+/Co4+ redox pair offers a higher voltage plateau than its Co2+/Co3+ counterpart. However, related studies are scarce, due to two challenges: the Co3+/Co4+ redox pair is more difficult to activate than Co2+/Co3+; once activated, the Co3+/Co4+ redox pai...

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Veröffentlicht in:	Advanced energy materials 2020-07, Vol.10 (25), p.n/a
Hauptverfasser:	Tang, Yongchao, Li, Xuejin, Lv, Haiming, Xie, Dong, Wang, Wenlong, Zhi, Chunyi, Li, Hongfei
Format:	Artikel
Sprache:	eng
Schlagworte:	alkaline zinc batteries Cathodes Cobalt oxides Doping Electric potential Electrochemical analysis Electrode materials Life span metal selenide derivatives Phase transitions residual doping effect ultralong cyclability valence mediation Voltage Zinc
Online-Zugang:	Volltext
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