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US 6,444,363 B1Granted
Method of making a nickel hydroxide material
AssigneeOvonic Battery Company, Inc.
InventorsGabriel E. Benet, Charles T. Walker, Cristian Fierro, Michael A. Fetcenko, Beth Sommers, Avram Zallen
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Abstract
A process for making a positive battery electrode material using a secondary metal. The secondary metal is preferably treated using an non-electrolytic process and formed into an active, positive battery electrode material by a precipitation reaction.
Claims14
A method for making an active positive electrode material comprising the steps of:
- providing a secondary nickel sulfate solution having a contamination that adversely effects the quality of active material for use as a battery electrode material;
- reducing the contamination of the secondary nickel sulfate solution with at least one precipitation reaction to provide a treated secondary metal source;
- and
- converting the treated secondary metal source into an active positive electrode material.
1 more element
A method for making nickel hydroxide positive battery electrode material comprising the steps of:
- providing a secondary nickel salt solution having a contamination that adversely effects the quality of nickel hydroxide material for use as a battery electrode material;
- reducing the contamination of the secondary nickel salt solution with at least one precipitation reaction to provide a treated secondary nickel source;
- providing the treated secondary nickel source as a metal salt solution;
- and
- converting the metal salt solution into an active positive battery electrode material.
2 more elements
Dependencies are inferred from the claim text.