Hua, Weibo ; Wang, Suning ; Wang, Kai ; Missyul, Alexander ; Fu, Qiang ; Dewi Darma, Mariyam Susana ; Li, Hang ; Baran, Volodymyr ; Liu, Laijun ; Kübel, Christian ; Binder, Joachim R. ; Knapp, Michael ; Ehrenberg, Helmut ; Indris, Sylvio (2021)
Li+/Na+ ion exchange in layered Na2/3(Ni0.25Mn0.75)O2: a simple and fast way to synthesize O3/O2-type layered oxides.
In: Chemistry of Materials, 33 (14)
doi: 10.1021/acs.chemmater.1c00962
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Normally, high temperatures are required for solid-state reactions to overcome energy barriers in the formation of lithium insertion materials. Consequently, conventional high-temperature lithiation reactions are very time- and energy-consuming and often accompanied by undesirable side reactions. Thus, how to synthesize Li-containing cathode materials with a desired structure under a short reaction time and low temperature is of paramount significance. Herein, layered sodium-deficient Na-2/3 square (1/3)(Ni0.25Mn0.75)O-2 (square for vacancy) oxides with different oxygen stackings (P2 or P3 structure) were deployed in lithium ion batteries. An interesting Li+/Na+ ionexchange reaction between the electrode material and LiPF6-based carbonate electrolyte was observed at room temperature for the first time. Such a reaction can produce the layered Li-2/3 square(1/3)(Ni0.25Mn0.75)O-2 compounds having the O2 or O3 structure, which show the ability to reversibly accommodate lithium ions over a relatively wide voltage range. Our experiments may open up a pathway toward the development of novel electrode materials.
Typ des Eintrags: | Artikel |
---|---|
Erschienen: | 2021 |
Autor(en): | Hua, Weibo ; Wang, Suning ; Wang, Kai ; Missyul, Alexander ; Fu, Qiang ; Dewi Darma, Mariyam Susana ; Li, Hang ; Baran, Volodymyr ; Liu, Laijun ; Kübel, Christian ; Binder, Joachim R. ; Knapp, Michael ; Ehrenberg, Helmut ; Indris, Sylvio |
Art des Eintrags: | Bibliographie |
Titel: | Li+/Na+ ion exchange in layered Na2/3(Ni0.25Mn0.75)O2: a simple and fast way to synthesize O3/O2-type layered oxides |
Sprache: | Englisch |
Publikationsjahr: | 27 Juli 2021 |
Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Chemistry of Materials |
Jahrgang/Volume einer Zeitschrift: | 33 |
(Heft-)Nummer: | 14 |
DOI: | 10.1021/acs.chemmater.1c00962 |
Kurzbeschreibung (Abstract): | Normally, high temperatures are required for solid-state reactions to overcome energy barriers in the formation of lithium insertion materials. Consequently, conventional high-temperature lithiation reactions are very time- and energy-consuming and often accompanied by undesirable side reactions. Thus, how to synthesize Li-containing cathode materials with a desired structure under a short reaction time and low temperature is of paramount significance. Herein, layered sodium-deficient Na-2/3 square (1/3)(Ni0.25Mn0.75)O-2 (square for vacancy) oxides with different oxygen stackings (P2 or P3 structure) were deployed in lithium ion batteries. An interesting Li+/Na+ ionexchange reaction between the electrode material and LiPF6-based carbonate electrolyte was observed at room temperature for the first time. Such a reaction can produce the layered Li-2/3 square(1/3)(Ni0.25Mn0.75)O-2 compounds having the O2 or O3 structure, which show the ability to reversibly accommodate lithium ions over a relatively wide voltage range. Our experiments may open up a pathway toward the development of novel electrode materials. |
Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > In-Situ Elektronenmikroskopie |
Hinterlegungsdatum: | 12 Jun 2024 08:25 |
Letzte Änderung: | 12 Jun 2024 08:25 |
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