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OwnerAnnigere Sannalingegowda Prakash, Gogula Sudheer Kumar +1inventors
InventorsAnnigere Sannalingegowda Prakash, Gogula Sudheer Kumar, Vasantha Annigere Gangadharappa
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The present invention relates to a sodium-ion battery comprising positive electrode compositions possessing improved battery performance and moisture and air stability. The positive electrode composition having a general formula NaxAzNiiMyMnjTikSbfO2 where A is alkali or alkaline-earth metals selected from Ca, Li, M is divalent or trivalent element selected from Fe, Mg, Zn, Cu, Al, Co, and Ni is divalent element, Mn, Ti is tetravalent element and Sb is pentavalent/trivalent element where (i+j+k+f+y=1), 0.7≤x≤1, 0≤z≤0.2, 0.1≤i≤0.6, 0≤y≤0.5, 0.1≤j≤0.5, 0.05≤k≤0.4, 0≤f≤0.2, The present invention is applicable to energy storage applications.
An air and moisture stable layered oxide cathode material having formula NaxAzNiiMyMnjTikSbfO2 where (i+j+k+f+y=1), 0.7≤x≤1, 0≤z≤0.2, 0≤y≤0.5, 0.1≤i≤0.6, 0.1≤j≤0.5, 0.05≤k≤0.4, 0≤f≤0.2,
Dependencies are inferred from the claim text.