POSITIVE ACTIVE MATERIAL FOR POTASSIUM SECONDARY BATTERY AND POTASSIUM SECONDARY BATTERY INCLUDING THE SAME

POSITIVE ACTIVE MATERIAL FOR POTASSIUM SECONDARY BATTERY AND POTASSIUM SECONDARY BATTERY INCLUDING THE SAME

Disclosed herein are a positive active material for an excellent potassium secondary battery and a potassium secondary battery including the same. The positive active material is constituted of a composition represented by Formula 1 below, and has a transition metal (TM) located at a position of a t...

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Bibliographische Detailangaben
Hauptverfasser: PYO, Myoung-Ho, HAN, Su-Cheol
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:Disclosed herein are a positive active material for an excellent potassium secondary battery and a potassium secondary battery including the same. The positive active material is constituted of a composition represented by Formula 1 below, and has a transition metal (TM) located at a position of a tetrahedron site and a crystal structure in which a space group is Pbca:         [Formula 1]     KxTMO2,wherein 0.7≤X≤1.0, and the TM is one or more selected from among Ti, V, Cr, Mn, Fe, Co, and Ni.