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US 6,645,452 B1Granted
Methods of making lithium metal cathode active materials
AssigneeValence Technology, Inc.
InventorsJeremy Barker, M. Yazid Saidi, Jeffrey Swoyer
Life of this patent
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Abstract
The invention provides a method for making lithium mixed metal materials in electrochemical cells. The lithium mixed metal materials comprise lithium and at least one other metal besides lithium. The invention involves the reaction of a metal compound, and a phosphate compound, with a reducing agent to reduce the metal and form a metal phosphate. The invention also includes methods of making lithium metal oxides involving reaction of a lithium compound, and a metal oxide with a reducing agent.
Claims3
A method of making LiVPO4F comprising the step of:
- reacting a particular admixture of starting materials at a temperature in a range between about 500° C. and 1200° C. to form LiVPO4F for use as an electroactive material, wherein said particulate admixture of starting materials comprises at least one first metal constituent, at least one phosphate compound, at least one lithium compound and at least one particulate reducing agent.
Dependencies are inferred from the claim text.