Cabot Corporation

Jonathon L Kimmel

Ricky W Kitchell

James Allen Fife

Randall Redd

Yongjian Qiu

Pressed material such as anodes are described and formed from oxygen reduced oxide powders using additives, such as binders and/or lubricants. Methods to form the pressed material are also described, such as with the use of atomizing, spray drying, fluid bed processing, microencapsulation, and/or coacervation.

Modified oxygen reduced valve metal oxides

Methods to at least partially reduce a niobium oxide are described wherein the process includes heat treating the niobium oxide in the presence of a getter material and in an atmosphere which permits the transfer of oxygen atoms from the niobium oxide to the getter material, and for a sufficient time and at a sufficient temperature to form an oxygen reduced niobium oxide. Niobium oxides and/or suboxides are also described as well as capacitors containing anodes made from the niobium oxides and suboxides.

Methods of making a niobium metal oxide

Methods to partially reduce a niobium metal oxide and oxygen reduced niobium oxides

Methods to at least partially reduce a niobium oxide are described wherein the process includes heat treating the niobium oxide in the presence of a getter material and in an atmosphere which permits the transfer of oxygen atoms from the niobium oxide to the getter material, and for a sufficient time and at a sufficient temperature to form an oxygen reduced niobium oxide. Niobium oxides and/or suboxides are also described as well as capacitors containing anodes made from the niobium oxides and suboxides. Anodes formed from niobium oxide powders using binders and/or lubricants are described as well as methods to form the anodes.

Oxygen reduced niobium oxides

The present invention relates to capacitor anodes containing a niobium oxide having an atomic ratio of niobium to oxygen of 1:less than 2.5 and being formed at a formation voltage of about 6 volts or higher. The present invention further relates to a niobium oxide having an atomic ratio of niobium to oxygen of 1:less than 2.5, and having a nitrogen content of from about 31,000 ppm N to about 130,000 ppm N . Capacitors containing the various types of niobium oxide are further described.

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Audubon, PA, United States of America

Jonathon L Kimmel