Patents by Inventor Peter R. Moses
Peter R. Moses 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).
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Patent number: 6939528Abstract: Particulate MnO2, having simultaneously a micropore surface area greater than 8.0 m2/g, desirably between about 8.0 and 13 m2/g and BET surface area of between about 20 and 31 m2/g within the context of an MnO2 having a total intraparticle porosity of between about 0.035 cm3/g and 0.06 cm3/g produces enhanced performance when employed as cathode active material in an electrochemical cell, particularly an alkaline cell. The average pore radius of the meso and macro pores within the MnO2 (meso-macro pore radius) is desirably greater than 32 Angstrom.Type: GrantFiled: November 28, 2003Date of Patent: September 6, 2005Assignee: The Gillette CompanyInventors: Stuart M. Davis, William L. Bowden, Peter R. Moses, Thomas C. Richards
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Patent number: 6863876Abstract: Particulate MnO2, having simultaneously a micropore surface area greater than 8.0 m2/g, desirably between about 8.0 and 13 m2/g and BET surface area of between about 20 and 31 m2/g within the context of an MnO2 having a total intraparticle porosity of between about 0.035 cm3/g and 0.06 cm3/g produces enhanced performance when employed as cathode active material in an electrochemical cell, particularly an alkaline cell. The average pore radius of the meso and macro pores within the MnO2 (meso-macro pore radius) is desirably greater than 32 Angstrom.Type: GrantFiled: March 8, 2002Date of Patent: March 8, 2005Assignee: The Gillette CompanyInventors: Stuart M. Davis, William L. Bowden, Peter R. Moses, Thomas C. Richards
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Publication number: 20040109822Abstract: Particulate MnO2, having simultaneously a micropore surface area greater than 8.0 m2/g, desirably between about 8.0 and 13 m2/g and BET surface area of between about 20 and 31 m2/g within the context of an MnO2 having a total intraparticle porosity of between about 0.035 cm3/g and 0.06 cm3/g produces enhanced performance when employed as cathode active material in an electrochemical cell, particularly an alkaline cell. The average pore radius of the meso and macro pores within the MnO2 (meso-macro pore radius) is desirably greater than 32 Angstrom.Type: ApplicationFiled: November 28, 2003Publication date: June 10, 2004Inventors: Stuart M. Davis, William L. Bowden, Peter R. Moses, Thomas C. Richards
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Publication number: 20030170170Abstract: Particulate MnO2, having simultaneously a micropore surface area greater than 8.0 m2/g, desirably between about 8.0 and 13 m2/g and BET surface area of between about 20 and 31 m2/g within the context of an MnO2 having a total intraparticle porosity of between about 0.035 cm3/g and 0.06 cm3/g produces enhanced performance when employed as cathode active material in an electrochemical cell, particularly an alkaline cell. The average pore radius of the meso and macro pores within the MnO2 (meso-macro pore radius) is desirably greater than 32 Angstrom.Type: ApplicationFiled: March 8, 2002Publication date: September 11, 2003Inventors: Stuart M. Davis, William L. Bowden, Peter R. Moses, Thomas C. Richards
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Patent number: 6585881Abstract: A process for manufacture of manganese dioxide comprising subjecting an aqueous bath comprising manganese sulfate (MnSO4) and sulfuric acid (H2SO4) to electrolysis in a closed cell wherein the electrolysis bath is maintained at an elevated temperature above 110° C., preferably above 115° C. and at superatmospheric pressure. Desirably the bath can be maintained at an elevated temperature between about 115° C. and 155° C. The electrolysis is carried out preferably at elevated current density of between about 12.5 and 37 Amp/sq. ft (135 and 400 Amp/sq. meter) which allows for smaller or fewer electrolysis units. An MnO2 product having a specific surface area (SSA) within desired range of between 18-45 m2/g can be obtained. A doping agent, preferably a soluble titanium dopant is employed to help obtain the desired specific surface area (SSA) of the MnO2 product. The manganese dioxide product in zinc/MnO2 alkaline cells gives excellent service life, particularly in high power application.Type: GrantFiled: February 20, 2001Date of Patent: July 1, 2003Assignee: The Gillette CompanyInventors: Stuart M. Davis, Peter R. Moses, Gary Miller
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Patent number: 6551742Abstract: A fluorosurfactant, preferably an anionic fluorosurfactant, can be added to the anode mixture of a zinc/air cell. A desirable surfactant is an anionic fluoroaliphaticcarboxylate. The addition of the surfactant reduces gassing and improves cell performance. The anode casing can also be treated with the surfactant solution prior to inserting the anode mixture therein. The anode casing of a zinc/air depolarized cell can also be heat treated after the casing has been formed but before anode material comprising zinc is inserted therein. The anode casing has a layer of copper on its inside surface. The process comprises heat treating the anode casing by passing a gas at a temperature between about 200° C. and 700° C., preferably between about 300° C. and 600° C. in contact therewith to form a heat treated anode casing and then cooling said heat treated anode casing to ambient temperature.Type: GrantFiled: November 13, 2000Date of Patent: April 22, 2003Assignee: The Gillette CompanyInventors: Rokeya Huq, Peter R. Moses, Guang Wei, David Pappas
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Patent number: 6548201Abstract: A process for heat treating the metal sheeting forming the anode casing of a zinc/air depolarized cell before anode material comprising zinc is inserted into the anode casing. The anode casing has a layer of copper on its inside surface. The process comprises heat treating the metal sheeting forming the anode casing by passing a gas at a temperature between about 200° C. and 700° C., preferably between about 300° C. and 600° C. in contact therewith to form a heat treated sheeting and then cooling said heat treated sheeting to ambient temperature. The anode casing is stored away from atmospheric air until anode active material is inserted therein during cell assembly. The heat treating process significantly reduces gassing during cell discharge and storage. The cell's capacity and performance is improved when the cell's anode comprises particulate zinc (or zinc alloy) plated with indium, preferably between about 200 and 600 ppm indium.Type: GrantFiled: August 15, 2000Date of Patent: April 15, 2003Assignee: The Gillette CompanyInventors: Daniel Gibbons, Peter R. Moses, Guang Wei, David Pappas, Rokeya Huq
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Patent number: 6500576Abstract: A metal-air battery includes (a) an anode; (b) a cathode including a metal that reduces oxygen; (c) a housing for the anode and cathode having an air access that allows oxygen to contact the cathode; (d) a separator between the anode and the cathode; and (e) a hydrogen recombination catalyst within the housing. The hydrogen recombination catalyst can include a Pd, Pt, Ru metal or a salt thereof, and CuO.Type: GrantFiled: June 28, 2000Date of Patent: December 31, 2002Assignee: The Gillette CompanyInventors: Stuart M. Davis, Peter R. Moses, David L. Pappas
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Publication number: 20020157963Abstract: A process for manufacture of manganese dioxide comprising subjecting an aqueous bath comprising manganese sulfate (MnSO4) and sulfuric acid (H2SO4) to electrolysis in a closed cell wherein the electrolysis bath is maintained at an elevated temperature above 110° C., preferably above 115° C. and at superatmospheric pressure. Desirably the bath can be maintained at an elevated temperature between about 115° C. and 155° C. The electrolysis is carried out preferably at elevated current density of between about 12.5 and 37 Amp/sq.ft (135 and 400 Amp/sq. meter) of the anode surface which allows for smaller or fewer electrolysis units. An MnO2 product having a specific surface area (SSA) within desired range of between 18-45 m2/g can be obtained. A doping agent, preferably a soluble titanium dopant can also be employed to help obtain the desired specific surface area (SSA) of the MnO2 product.Type: ApplicationFiled: February 20, 2001Publication date: October 31, 2002Inventors: Stuart M. Davis, Peter R. Moses, Gary Miller
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Patent number: 6447947Abstract: A process for heat treating an anode casing of a zinc/air depolarized cell after the casing has been formed but before anode material comprising zinc is inserted therein. The anode casing has a layer of copper on its inside surface. The process comprises heat treating the anode casing by passing a gas at a temperature between about 200° C. and 700° C., preferably between about 300° C. and 600° C. in contact therewith to form a heat treated anode casing and then cooling said heat treated anode casing to ambient temperature. The heat treated anode casing is stored away from atmospheric air until anode active material is inserted therein during cell assembly. The heat treating process significantly reduces gassing during cell discharge and storage and eliminates the need to add mercury to the anode material.Type: GrantFiled: December 13, 1999Date of Patent: September 10, 2002Assignee: The Gillette CompanyInventors: Rokeya Huq, Peter R. Moses, David Pappas, Guang Wei
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Patent number: 6333123Abstract: An alkaline battery includes a cathode, an anode, a separator, an alkaline electrolyte, and a hydrogen recombination catalyst. The hydrogen recombination catalyst includes a hydrogen oxidizing material, such as CuO, and an activating material. The activating material includes a first activating component and a second activating component. The components of the activating material can be Pd, Pt, Ru metals or salts thereof.Type: GrantFiled: June 28, 2000Date of Patent: December 25, 2001Assignee: The Gillette CompanyInventors: Stuart M. Davis, Peter R. Moses, David L. Pappas
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Patent number: 6190800Abstract: A lithiated manganese dioxide for use in primary lithium electrochemical cells. The lithiated manganese dioxide is prepared by stepwise treatment with a liquid source of lithium cations that can include an aqueous solution of a lithium base or a low melting point lithium salt resulting in formation of a lithiated manganese dioxide product. Lithium cations in the lithium base or molten lithium salt can be ion-exchanged with hydrogen ions in the manganese dioxide crystal lattice and additional lithium ions reductively inserted into the lattice during subsequent heat-treatment to form the lithiated manganese dioxide product LiyMnO2−&dgr;. The primary lithium cell utilizing the lithiated manganese dioxide product as active cathode material exhibits increased operating voltage and enhanced high rate, low temperature, and pulse discharge performance compared with untreated manganese dioxide.Type: GrantFiled: February 1, 2000Date of Patent: February 20, 2001Assignee: The Gillette CompanyInventors: Nikolay Iltchev, Paul A. Christian, William L. Bowden, Peter R. Moses, Klaus Brandt
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Patent number: 5948569Abstract: A lithium ion cell having an amount of a Group 1 element between the positive electrode and the negative electrode is described. The Group 1 element can be on an surface of an electrode separator as a deposit. The Group 1 element can increase the charging capacity of the cell, eliminate the irreversible capacity of the cell, improve the rechargeable cell cyclability, or increase the charging reversibility of the cell.Type: GrantFiled: July 21, 1997Date of Patent: September 7, 1999Assignee: Duracell Inc.Inventors: Peter R. Moses, Shuming Zeng, Enoch Wang, Guang Wei
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Patent number: 5532085Abstract: The invention relates to alkaline cells containing manganese dioxide cathode active material. A substance selected from the group of compounds CaWO.sub.4, MgTiO.sub.3, BaTiO.sub.3, CaTiO.sub.3, ZnMn.sub.2 O.sub.4, and Bi.sub.12 TiO.sub.20 is added to the cathode of conventional alkaline cells typically having an anode comprising zinc and cathode comprising manganese dioxide and an alkaline electrolyte. The additive increases the service life of the cell.Type: GrantFiled: August 22, 1995Date of Patent: July 2, 1996Assignee: Duracell Inc.Inventors: Stuart M. Davis, Christopher P. Haines, Alexander A. Leef, Peter R. Moses
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Patent number: 4937154Abstract: This invention relates to an electrochemical cell having spirally wound electrodes and an electrolyte which enhances plating of the anode metal during voltage reversal. The safety of such cells is improved by concentrating the current, during voltage reversal, between an outer segment of the anode and a metal sheet connected to the cathode whereby anode metal plates only onto the metal sheet. Thus, the hazardous condition of plating anode metal onto the cathode is avoided.Type: GrantFiled: November 16, 1988Date of Patent: June 26, 1990Assignee: Duracell Inc.Inventors: Peter R. Moses, Fred J. Berkowitz, Alwyn H. Taylor
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Patent number: 4622277Abstract: This invention provides a design for spirally wound electrochemical cells which improves their safety during abuse such as voltage reversal. The invention comprises coupling a first segment of inert conductive metal to the cathode and a dendrite target comprised of an inert conductive metal to the anode. When these electrodes are spirally wound together the two segments of inert conductive metal face each other, held in physical separation by the separator, whereby during voltage reversal a dendrite grows from said first segment to said dendrite target.Type: GrantFiled: September 30, 1985Date of Patent: November 11, 1986Assignee: Duracell Inc.Inventors: Paul L. Bedder, Peter R. Moses, Bhupendra Patel, Terrence F. Reise, Alwyn H. Taylor
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Patent number: 4526846Abstract: Corrosion is prevented in a non-aqueous cell, having iron containing components kept at cathode potentials above 2.5 volts, by the inclusion within said cell of an additive comprised of a lewis base tertiary amine particularly heterocyclic imides such as 1,3-dimethylimidazolidinone and 3,5 dimethylisoxazole wherein all the nitrogens thereof contain no acidic protons.Type: GrantFiled: June 14, 1982Date of Patent: July 2, 1985Assignee: Duracell Inc.Inventors: Susan D. Kearney, Peter R. Moses
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Patent number: 4490449Abstract: A non-aqueous electrochemical cell having a non-polymerizing substituted dioxolane electrolyte solvent and a highly oxidizing cathode depolarizer particularly manganese dioxide.Type: GrantFiled: September 19, 1983Date of Patent: December 25, 1984Assignee: Duracell Inc.Inventors: Peter R. Moses, William L. Bowden
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Patent number: 4482613Abstract: The safety of a non-pressurized electrochemical cell such as a Li/MnO.sub.2 cell, having a safety pressure vent and an organic electrolyte solvent is enhanced by, in conjunction with said vent, providing said organic electrolyte solvent with at least 80% by volume of a volatile component, such as dimethoxyethane, having a boiling point between 30.degree. C. to 130.degree. C. Upon cell venting, under abuse conditions, the cell is thereby rapidly evacuated and safely rendered inoperable under further abuse conditions.Type: GrantFiled: February 16, 1983Date of Patent: November 13, 1984Assignee: Duracell Inc.Inventors: Michael J. Turchan, deceased, Peter R. Moses, Alwyn H. Taylor
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Patent number: 4401735Abstract: A non-aqueous Li/MnO.sub.2 cell having an electrolyte which improves the capacity thereof and which consists of an electrolyte salt such as LiClO.sub.4 dissolved in 1,3 dioxolane.Type: GrantFiled: December 28, 1979Date of Patent: August 30, 1983Assignee: Duracell International Inc.Inventors: Peter R. Moses, Alwyn H. Taylor, Michael J. Turchan