Ovonic Battery Company, Inc.

Texaco Ovonic Battery Systems, LLC

Univerticalcorporation

Gabriel E Benet

Michael A Fetcenko

Cristian Fierro

Avram Zallen

Beth Sommers

Tim Hicks

Charles T Walker

A preferred embodiment of the present invention provides a process for making nickel sulfate by converting nickel metal into nickel sulfate, which may be converted to nickel hydroxide. Nickel metal is dissolved in sulfuric acid and oxygen containing gas is introduced to produce a nickel sulfate solution having nickel sulfate and water as illustrated in the following chemical equation.Ni+HSO+&#xbd;O&#x2192;NiSO+HOThe nickel sulfate is filtered and sulfuric acid is continually added to maintain stoichiometry within a reactor until the nickel metal is dissolved. The sulfuric acid, oxygen containing gas and nickel metal may be heated to facilitate the desired reaction. Then, the nickel sulfate may be utilized to produce nickel hydroxide.

Process for converting nickel to nickel sulfate

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.

Method of making a nickel hydroxide material

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Angola, IN, United States of America

Gabriel E Benet