Method for producing sodium composite transition metal oxide, positive electrode active material for sodium secondary battery, positive electrode and sodium secondary battery comprising the same

Method for producing sodium composite transition metal oxide, positive electrode active material for sodium secondary battery, positive electrode and sodium secondary battery comprising the same

A positive electrode active material for a sodium secondary battery includes a sodium composite transition metal oxide represented by Formula 1 and having a P3 crystal structure, and a positive electrode and a sodium secondary battery which include the positive electrode active material.Nax[LiaM1-a]...

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Bibliographische Detailangaben
Hauptverfasser: Yoon, Hyo Jung, Lim, Shin Gwon, Kwon, Mi-Sook, Lee, Kyu Tae
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:A positive electrode active material for a sodium secondary battery includes a sodium composite transition metal oxide represented by Formula 1 and having a P3 crystal structure, and a positive electrode and a sodium secondary battery which include the positive electrode active material.Nax[LiaM1-a]O2  [Formula 1]wherein M is at least one transition metal, 0.64≤x≤0.7, and 0.01≤a≤0.1.