Ovonic Battery Company, Inc.

Energy Conversion Devices, Inc.

Christian Fierro

Stanford R Ovshinsky

Michael A Fetcenko

Benjamin Reichman

Kwo Young

William C Mays

Beth Sommers

Rosa T Young

Dennis A Corrigan

Srini Venkatesan

A method for making a composite positive electrode material for use in electrochemical cells. The composite material comprises a particle of positive electrode material and a nucleating particle at least partially embedded within the interior of the particle of positive electrode material.

Composite positive electrode material and method for making same

A composite positive electrode material for use in electrochemical cells. The composite material includes a particle of positive electrode material and a nucleating particle at least partially embedded within the interior of the particle of positive electrode material.

A method for making a composite positive electrode material for use in electrochemical cells. The composite material includes a particle of positive electrode material and a conductive material at least partially embedded within the interior of the particle of positive electrode material.

A composite positive electrode material for use in electrochemical cells. The composite material may comprise a particle of positive electrode material, and a conductive material at least partially embedded within the particle of positive electrode material. The material may comprise a particle of positive electrode material, and a nucleating particle at least partially embedded therein.

A high capacity, long cycle life positive electrode for use in an alkaline rechargeable electrochemical cell comprising: a solid solution nickel hydroxide material having a multiphase structure that comprises at least one polycrystalline .gamma.-phase including a polycrystalline .gamma.-phase unit cell comprising spacedly disposed plates with at least one chemical modifier incorporated around the plates, the plates having a range of stable intersheet distances corresponding to a 2.sup.+ oxidation state and a 3.5.sup.+, or greater, oxidation state; and at least one compositional modifier incorporated into the solid solution nickel hydroxide material to promote the multiphase structure.

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Northville, MI, United States of America

Christian Fierro