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).

  • Patent number: 6939528
    Abstract: 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: Grant
    Filed: November 28, 2003
    Date of Patent: September 6, 2005
    Assignee: The Gillette Company
    Inventors: Stuart M. Davis, William L. Bowden, Peter R. Moses, Thomas C. Richards
  • Patent number: 6863876
    Abstract: 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: Grant
    Filed: March 8, 2002
    Date of Patent: March 8, 2005
    Assignee: The Gillette Company
    Inventors: Stuart M. Davis, William L. Bowden, Peter R. Moses, Thomas C. Richards
  • Publication number: 20040109822
    Abstract: 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: Application
    Filed: November 28, 2003
    Publication date: June 10, 2004
    Inventors: Stuart M. Davis, William L. Bowden, Peter R. Moses, Thomas C. Richards
  • Publication number: 20030170170
    Abstract: 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: Application
    Filed: March 8, 2002
    Publication date: September 11, 2003
    Inventors: Stuart M. Davis, William L. Bowden, Peter R. Moses, Thomas C. Richards
  • Patent number: 6585881
    Abstract: 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: Grant
    Filed: February 20, 2001
    Date of Patent: July 1, 2003
    Assignee: The Gillette Company
    Inventors: Stuart M. Davis, Peter R. Moses, Gary Miller
  • Patent number: 6551742
    Abstract: 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: Grant
    Filed: November 13, 2000
    Date of Patent: April 22, 2003
    Assignee: The Gillette Company
    Inventors: Rokeya Huq, Peter R. Moses, Guang Wei, David Pappas
  • Patent number: 6548201
    Abstract: 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: Grant
    Filed: August 15, 2000
    Date of Patent: April 15, 2003
    Assignee: The Gillette Company
    Inventors: Daniel Gibbons, Peter R. Moses, Guang Wei, David Pappas, Rokeya Huq
  • Patent number: 6500576
    Abstract: 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: Grant
    Filed: June 28, 2000
    Date of Patent: December 31, 2002
    Assignee: The Gillette Company
    Inventors: Stuart M. Davis, Peter R. Moses, David L. Pappas
  • Publication number: 20020157963
    Abstract: 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: Application
    Filed: February 20, 2001
    Publication date: October 31, 2002
    Inventors: Stuart M. Davis, Peter R. Moses, Gary Miller
  • Patent number: 6447947
    Abstract: 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: Grant
    Filed: December 13, 1999
    Date of Patent: September 10, 2002
    Assignee: The Gillette Company
    Inventors: Rokeya Huq, Peter R. Moses, David Pappas, Guang Wei
  • Patent number: 6333123
    Abstract: 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: Grant
    Filed: June 28, 2000
    Date of Patent: December 25, 2001
    Assignee: The Gillette Company
    Inventors: Stuart M. Davis, Peter R. Moses, David L. Pappas
  • Patent number: 6190800
    Abstract: 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: Grant
    Filed: February 1, 2000
    Date of Patent: February 20, 2001
    Assignee: The Gillette Company
    Inventors: Nikolay Iltchev, Paul A. Christian, William L. Bowden, Peter R. Moses, Klaus Brandt
  • Patent number: 5948569
    Abstract: 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: Grant
    Filed: July 21, 1997
    Date of Patent: September 7, 1999
    Assignee: Duracell Inc.
    Inventors: Peter R. Moses, Shuming Zeng, Enoch Wang, Guang Wei
  • Patent number: 5532085
    Abstract: 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: Grant
    Filed: August 22, 1995
    Date of Patent: July 2, 1996
    Assignee: Duracell Inc.
    Inventors: Stuart M. Davis, Christopher P. Haines, Alexander A. Leef, Peter R. Moses
  • Patent number: 4937154
    Abstract: 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: Grant
    Filed: November 16, 1988
    Date of Patent: June 26, 1990
    Assignee: Duracell Inc.
    Inventors: Peter R. Moses, Fred J. Berkowitz, Alwyn H. Taylor
  • Patent number: 4622277
    Abstract: 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: Grant
    Filed: September 30, 1985
    Date of Patent: November 11, 1986
    Assignee: Duracell Inc.
    Inventors: Paul L. Bedder, Peter R. Moses, Bhupendra Patel, Terrence F. Reise, Alwyn H. Taylor
  • Patent number: 4526846
    Abstract: 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: Grant
    Filed: June 14, 1982
    Date of Patent: July 2, 1985
    Assignee: Duracell Inc.
    Inventors: Susan D. Kearney, Peter R. Moses
  • Patent number: 4490449
    Abstract: A non-aqueous electrochemical cell having a non-polymerizing substituted dioxolane electrolyte solvent and a highly oxidizing cathode depolarizer particularly manganese dioxide.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: December 25, 1984
    Assignee: Duracell Inc.
    Inventors: Peter R. Moses, William L. Bowden
  • Patent number: 4482613
    Abstract: 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: Grant
    Filed: February 16, 1983
    Date of Patent: November 13, 1984
    Assignee: Duracell Inc.
    Inventors: Michael J. Turchan, deceased, Peter R. Moses, Alwyn H. Taylor
  • Patent number: 4401735
    Abstract: 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: Grant
    Filed: December 28, 1979
    Date of Patent: August 30, 1983
    Assignee: Duracell International Inc.
    Inventors: Peter R. Moses, Alwyn H. Taylor, Michael J. Turchan