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US 12,722,983 B2Granted
Acid treatment of LiNiO2 to decrease gamma-NiOOH formation
AssigneeBASF SE
InventorsDieter G. Von Deak, Tinoush Dinn, William C. Mays, Martin Lawrence Panchula
Life of this patent
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Abstract
Disclosed is a process for producing a battery material including contacting a first intermediate product of a battery material with an acidic medium under conditions sufficient to dissolve low-lithium-containing oxide present on a surface of the first intermediate product to obtain a second intermediate product such that a weight of the second intermediate product is 0.2% to 5% less than a weight of the first intermediate product.
Claims19
A process for producing a battery material, the process comprising:
- contacting a first intermediate product of a battery material with an acidic medium under conditions sufficient to dissolve low-lithium-containing oxide present on a surface of the first intermediate product to obtain a second intermediate product,
- wherein a weight of the second intermediate product is from about 0.2% to about 5% less than a weight of the first intermediate product, and
- wherein the first intermediate product comprises LixNizO2, wherein x ranges from about 0 to about 0.2 and z ranges from about 0.1 to about 1.
Dependencies are inferred from the claim text.