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US 11,444,278 B2Granted
Cathode material for lithium secondary battery, and preparation method therefor
AssigneeLG Energy Solution, Ltd.
InventorsSung Chul Lim, Jonghyun Chae, Suhwan Kim
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Abstract
A positive electrode material for lithium secondary batteries capable of easily doping vanadium oxide with molybdenum, and a method of manufacturing the same are disclosed. The method of manufacturing a positive electrode material for lithium secondary batteries includes (a) reacting vanadium oxide with a water-soluble molybdenum-based compound in the presence of a solvent; and (b) thermally treating the reaction product of (a).
Claims2
A method of manufacturing a positive electrode material for lithium secondary batteries, comprising:
- (a) reacting a vanadium oxide with a water-soluble molybdenum-based compound in the presence of a solvent;
- and
- (b) thermally treating the reaction product of (a), wherein:
- the molybdenum-based compound is ammonium molybdate tetrahydroxide of formula (NH4)6Mo7O24·4H2O;
- and
- the vanadium oxide is a compound represented by the following Formula 2, or ammonium metavanadate of formula NH4VO3:
- VaOb [Formula 2]
- wherein 1≤a≤6, and 2≤b≤13,
- further comprising between steps (a) and (b), spraying the reaction product of the molybdenum-based compound and the vanadium oxide to reduce a primary particle size of the vanadium oxide and form secondary particles in which primary particles are coagulated.
6 more elements
Dependencies are inferred from the claim text.