Patents by Inventor Frough K. Shokoohi
Frough K. Shokoohi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 6844109Abstract: A Li-ion and/or Li-ion polymer battery, comprised of a plurality of battery cells, each battery cell comprised of at least one cathode section, an anode section and at least one separator layer disposed between the anode section and the at least one cathode section. A first, planar metal mesh layer is disposed within the anode section, the first metal mesh layer having a coplanar tab extending beyond the separator layer to define a negative lead. A second, planar metal mesh layer is disposed within the cathode section, the second metal mesh layer having a coplanar tab extending beyond the separator layer to form a positive lead. A plurality of reinforcing bands are wrapped around the peripheral edges of the battery cells securing the battery cells together.Type: GrantFiled: December 18, 2001Date of Patent: January 18, 2005Assignee: NGK Spark Plug Co., Ltd.Inventors: Xuekun Xing, Frough K. Shokoohi, Wanjun Fang, Hiroki Sugiura
-
Publication number: 20030186117Abstract: A primary lithium battery, comprised of a battery package formed from a thin metal/polymer laminate and a single, elongated battery cell having a cathode section, an anode section and a separator disposed between the cathode section and the anode section. The cathode section includes a copper foil having a cathode film thereon. The cathode film includes manganese dioxide, carbon, a polymer binder and a plasticizer, the plasticizer consisting of propylene carbonate (PC). The anode section includes a copper foil having a lithium foil thereon. The battery is folded within the battery package and an electrolyte including propylene carbonate (PC), ethylene carbonate (EC) and a lithium salt are contained within the battery package.Type: ApplicationFiled: March 27, 2002Publication date: October 2, 2003Applicant: NTK Powerdex, Inc.Inventors: Frough K. Shokoohi, Xuekun Xing
-
Publication number: 20030113618Abstract: A Li-ion and/or Li-ion polymer battery, comprised of a plurality of battery cells, each battery cell comprised of at least one cathode section, an anode section and at least one separator layer disposed between the anode section and the at least one cathode section. A first, planar metal mesh layer is disposed within the anode section, the first metal mesh layer having a coplanar tab extending beyond the separator layer to define a negative lead. A second, planar metal mesh layer is disposed within the cathode section, the second metal mesh layer having a coplanar tab extending beyond the separator layer to form a positive lead. A plurality of reinforcing bands are wrapped around the peripheral edges of the battery cells securing the battery cells together.Type: ApplicationFiled: December 18, 2001Publication date: June 19, 2003Applicant: NTK Powerdex, Inc.Inventors: Xuekun Xing, Frough K. Shokoohi, Wanjun Fang, Hiroki Sugiura
-
Patent number: 6562511Abstract: A separator for a Li-ion polymer battery comprised of a plurality of separator layers that are laminated together. The plurality of separator layers including a first layer formed of a first separator material, and a second layer formed of a second separator material, wherein the second layer is compositionally and structurally different from the first layer.Type: GrantFiled: December 6, 2000Date of Patent: May 13, 2003Assignees: NTK Powerdex, Inc., NGK Spark Plug Co., Ltd.Inventors: Mark L. Daroux, Frough K. Shokoohi, Geoffrey Barlow, Xuekun Xing
-
Patent number: 6551745Abstract: A cathode slurry for use in a lithium battery, comprised of: about 60% to about 70% by weight manganese dioxide; about 5% to about 10% by weight carbon; and about 25% to about 35% by weight of an electrolyte, said electrolyte comprised of: about 10% to about 40% by weight ethylene carbonate, about 60% to about 90% by weight propylene carbonate, and about 0.5 to about 1.5 moles of triflate salt.Type: GrantFiled: August 20, 2001Date of Patent: April 22, 2003Assignees: NGK Spark Plug Co., Ltd., NTK Powerdex, Inc.Inventors: George W. Moutsios, Xuekun Xing, Jay Nardi, Frough K. Shokoohi, Wanjun Fang
-
Publication number: 20020102455Abstract: A separator for a Li-ion polymer battery comprised of a plurality of separator layers that are laminated together. The plurality of separator layers including a first layer formed of a first separator material, and a second layer formed of a second separator material, wherein the second layer is compositionally and structurally different from the first layer.Type: ApplicationFiled: December 6, 2000Publication date: August 1, 2002Applicant: NTK Powerdex, Inc.Inventors: Mark L. Daroux, Frough K. Shokoohi, Geoffrey Barlow, Xuekun Xing
-
Publication number: 20020041999Abstract: A cathode slurry for use in a lithium battery, comprised of:Type: ApplicationFiled: August 20, 2001Publication date: April 11, 2002Applicant: NTK Powerdex, Inc.Inventors: George W. Moutsios, Xuekun Xing, Jay Nardi, Frough K. Shokoohi, Wanjun Fang
-
Patent number: 6284406Abstract: An IC card comprising an electronic device and a battery within a plastic card for electrically energizing the electronic device. The battery is comprised of a monolithic electrochemical cell having a lithium-containing cathode, a carbon anode, and a porous polymer separator infused with electrolyte solution. The cell has a thickness of less than 0.7 mm. A package containing the cell formed of a sheet of flexible laminate material having at least one metal foil layer and a layer of an adhesive-like polymeric material. The battery has an overall thickness of less than 0.8 mm.Type: GrantFiled: June 9, 2000Date of Patent: September 4, 2001Assignee: NTK Powerdex, Inc.Inventors: Xuekun Xing, Frough K. Shokoohi, Mark L. Daroux, Joan Corniuk, Wanjun Fang, George W. Moutsios
-
Patent number: 6277520Abstract: A cathode slurry for use in a lithium battery, comprised of: about 60% to about 70% by weight electrolytic manganese dioxide; about 5% to about 10% by weight carbon; and about 25% to about 35% by weight of an electrolyte, said electrolyte comprised of: about 10% to about 40% by weight ethylene carbonate, about 60% to about 90% by weight propylene carbonate, and about 0.5 to about 1.5 moles of triflate salt.Type: GrantFiled: March 19, 1999Date of Patent: August 21, 2001Assignee: NTK Powerdex, Inc.Inventors: George W. Moutsios, Xuekun Xing, Jay Nardi, Frough K. Shokoohi, Wanjun Fang
-
Patent number: 6175213Abstract: A battery is comprised of a rigid, plastic housing defining a generally rectangular interior cavity, and an essentially flat interior surface. A battery rechargeable electric cell has a flexible outer packaging, an electrically conductive thermoset adhesive film, and is contained within the cavity. The cell is generally rectangular in shape and has a flat outer surface and two leads extending through the housing. The cell has a normal configuration when experiencing normal operating conditions, and an abnormal configuration when experiencing abnormal operating conditions. A membrane switch is disposed between the flat interior surface of the housing and the flat outer surface of the cell. The switch has at least one lead extending through the housing. The switch has a first electrical condition when the cell has the normal configuration and a second electrical condition when the cell has the abnormal configuration.Type: GrantFiled: February 18, 2000Date of Patent: January 16, 2001Assignee: NTK Powerdex, Inc.Inventors: John A. Centa, Frough K. Shokoohi
-
Patent number: 5470357Abstract: Li-ion rechargeable battery cell electrode and electrolyte/separator elements formulated as layers of plasticized polymeric matrix compositions are laminated with electrically conductive collector elements to form a unitary battery cell structure. Adhesion between the electrode and collector elements is enhanced by pretreatment of the collector elements in which a 0.25% to 3.0% solution of a polymeric material compatible with said matrix polymer is applied to a collector foil or grid and dried to form a coated film, and the resulting coated collector element is heated within the range of about 250.degree. to 450.degree. C. for about 5 to 60 seconds.Type: GrantFiled: April 26, 1995Date of Patent: November 28, 1995Assignee: Bell Communications Research, Inc.Inventors: Caroline N. Schmutz, Frough K. Shokoohi, Jean-Marie Tarascon, Paul C. Warren
-
Patent number: 5211933Abstract: Methods are described for the low temperature preparation of the spinel LiMn.sub.2 O.sub.4 and layered LiCoO.sub.2 phases which are intercalable compounds of interest for use in lithium secondary batteries. These phases can be prepared in bulk or thick film form at temperatures less than 400.degree. C. using acetate precursors.Type: GrantFiled: April 30, 1992Date of Patent: May 18, 1993Assignee: Bell Communications Research, Inc.Inventors: Philippe Barboux, Frough K. Shokoohi, Jean-Marie Tarascon
-
Patent number: 5135732Abstract: Method is described for the low temperature preparation of the spinel LiMn.sub.2 O.sub.4 phase which is an intercalable compound of interest for use in lithium secondary batteries. This phase can be prepared in bulk or thick film form at temperatures less than 400.degree. C. using acetate precursors.Type: GrantFiled: April 23, 1991Date of Patent: August 4, 1992Assignee: Bell Communications Research, Inc.Inventors: Philippe Barboux, Frough K. Shokoohi, Jean-Marie Tarascon
-
Patent number: 5110696Abstract: A Thin film electrode for a rechargeable (secondary) battery is prepared by electron beam deposition of LiMn.sub.2 O.sub.4, LiCoO.sub.2, or LiNiO.sub.2 on a smooth, amorphous substrate surface and in situ annealing of the deposited lithium composition at a temperature below about 500.degree. C. The amorphous nature of the substrate surface prevents epitaxial growth or ordered orientation of the minute composition crystallites thus formed. The finely granular structure of the resulting electrode thin film presents abundant surface area that enables a 4V battery to provide current densities in the range of 500 microamps/cm.sup.2. The low annealing temperature enables formation of the electrode structure and subsequent battery assembly directly upon semiconductor devices and integrated circuitry.Type: GrantFiled: July 22, 1991Date of Patent: May 5, 1992Assignee: Bell Communications ResearchInventors: Frough K. Shokoohi, Jean-Marie Tarascon
-
Patent number: 4997522Abstract: A system for etching superconducting films of yttrium-barium-copper-oxide (YBa.sub.2 Cu.sub.3 O.sub.2) is disclosed. The etchant comprises ethylenediaminetetraacetic acid of varying concentrations in water or a water/glycerol mixture. The described etchant permits superconducting transition temperatures to remain unaffected within the experimental accuracy of 1.degree. C. Additionally, films do not require reoxygenation after etching, and the etchant is suitable for micropatterning using standard photolithography.Type: GrantFiled: August 18, 1989Date of Patent: March 5, 1991Assignee: Bell Communications Research, Inc.Inventor: Frough K. Shokoohi