Patents by Inventor Alwyn H. Taylor

Alwyn H. Taylor 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: 6159636
    Abstract: A method of making lithium manganese oxide of spinel structure is disclosed. The method involves the step of prelithiating a manganese oxide by reacting it with lithium hydroxide or lithium salt and then reacting the prelithiated manganese oxide in a second step at elevated temperature, for example, with lithium carbonate to form a lithium manganese oxide spinel. The spinel product may be used advantageously in secondary (rechargeable) batteries. The spinel product may be admixed with a partially substituted nickelite, preferably, LiNi.sub.x Co.sub.1-x O.sub.2 (0.1<x<0.9) or LiNi.sub.x Mg.sub.1-x O.sub.2 (0.85<x<0.97) and mixtures thereof to form the active material for the positive electrode of a rechargeable lithium ion cell. A preferred mixture for the positive electrode of lithium ion cells comprises lithium manganese oxide spinel and LiNi.sub.x Co.sub.1-x O.sub.2 (0.1<x<0.9).
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: December 12, 2000
    Assignee: The Gillette Company
    Inventors: Enoch I. Wang, William L. Bowden, Alwyn H. Taylor
  • Patent number: 5856040
    Abstract: An improved high rate alkaline cell is obtained by employing an anode current collector comprising a foraminous metal.
    Type: Grant
    Filed: March 21, 1991
    Date of Patent: January 5, 1999
    Assignee: Duracell, Inc.
    Inventors: Gerald H. Newman, Alwyn H. Taylor, Michel Vernhes
  • Patent number: 5796239
    Abstract: A battery pack and a method of operating a battery system. The battery pack includes a rechargeable battery and a processor for monitoring the battery during charging and discharging. The processor receives data values representing the battery voltage, temperature and current, and the processor performs a series of calculations using those data values. The processor is part of a hybrid integrated circuit, which also incluses an analog-to-digital converter, a ROM and a RAM. Preferably, the integrated circuit comprises a multitude of layers, upper layers of the circuit form the ROM, and lower layers of the circuit form the RAM.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: August 18, 1998
    Inventors: Duong van Phuoc, Rudi Wieczorek, Elmar Zeising, Louis W. Hruska, Alwyn H. Taylor, Daniel D. Friel, Matthew P. Hull
  • Patent number: 5789899
    Abstract: A battery pack and a method of operating a battery system. The battery pack includes a rechargeable battery, an analog-to digital converter, and a processor. The analog-to digital converter is able to convert both positive and negative analog signals to digital signals; and, in use, the converter receives analog signals representing battery voltage, battery temperature, and battery current, and converts those signals to digital signals. The processor receives those digital signals from the converter and uses those digital signals to perform a series of calculations.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: August 4, 1998
    Inventors: Duong van Phuoc, Rudi Wieczorek, Elmar Zeising, Louis Hruska, Alwyn H. Taylor, Daniel D. Friel, Matthew P. Hull
  • Patent number: 5710501
    Abstract: A battery pack and a method of operating a battery system. The battery pack includes a rechargeable battery and a processor for monitoring the battery during charging and discharging. The processor receives data values representing the battery voltage, temperature and current, and the processor performs a series of calculations using those data values. The processor is part of a hybrid integrated circuit, which also includes an analog-to-digital converter, a ROM and a RAM. Preferably, the integrated circuit comprises a multitude of layers, upper layers of the circuit form the ROM, and lower layers of the circuit form the RAM.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 20, 1998
    Assignee: Duracell, Inc.
    Inventors: Duong van Phuoc, Rudi Wieczorek, Elmar Zeising, Louis W. Hruska, Alwyn H. Taylor, Daniel D. Friel, Matthew P. Hull
  • Patent number: 5691621
    Abstract: A battery pack and a method of operating a battery system. The battery pack includes a rechargeable battery and a processor for monitoring the battery during charging and discharging. The processor receives data values representing the battery voltage, temperature and current, and the processor performs a series of calculations using those data values. In one of these calculations, the processor determines the actual full capacity of the battery. Preferably, the processor also keeps track of an uncertainty value that represents an uncertainty in the capacity of the battery; and the processor calculates the actual full capacity of the battery at the end of each discharge cycle if, at that time, the uncertainty value is less than a given percentage of a nominal full capacity of the battery.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 25, 1997
    Assignee: Duracell, Inc.
    Inventors: Duong Var Phuoc, Rudi Wieczorek, Elmar Zeising, Louis W. Hruska, Alwyn H. Taylor, Daniel D. Friel, Matthew P. Hull
  • Patent number: 5652502
    Abstract: A smart battery device which provides electrical power and which reports predefined battery parameters to an external device having a power management system, includes: at least one rechargeable cell connected to a pair of terminals to provide electrical power to an external device during a discharge mode and to receive electrical power during a charge mode, as provided or determined by the remote device; a data bus for reporting predefined battery identification and charge parameters to the external device; analog devices for generating analog signals representative of battery voltage and current at said terminals, and an analog signal representative of battery temperature at said cell; a hybrid integrated circuit (IC) having a microprocessor for receiving the analog signals and converting them to digital signals representative of battery voltage, current and temperature, and calculating actual charge parameters over time from the digital signals, the calculations including one calculation according to the f
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 29, 1997
    Assignee: Duracell, Inc.
    Inventors: Duong van Phuoc, Rudi Wieczorek, Elmar Zeising, Louis W. Hruska, Alwyn H. Taylor, Daniel D. Friel, Matthew P. Hull
  • Patent number: 5646508
    Abstract: A rechargeable battery pack and a method of operating a rechargeable battery system. The battery pack includes a rechargeable battery, a processor for monitoring operation and performance of the battery, and a memory area for storing data values used by the processor. The memory area is normally powered by the battery, and a capacitor is provided to supply back-up power to the memory area in case of an interruption in the supply of electrical power to the memory area from the battery. The battery pack further includes a delatching circuit for electronically decoupling the memory area and the back-up capacitor from the battery under predetermined conditions.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 8, 1997
    Assignee: Duracell, Inc.
    Inventors: Duong van Phuoc, Rudi Wieczorek, Elmar Zeising, Louis W. Hruska, Alwyn H. Taylor, Daniel D. Friel, Matthew P. Hull
  • Patent number: 5633573
    Abstract: A battery pack and a method of operating a battery system. The battery pack includes a rechargeable battery and a processor for monitoring the battery during charging and discharging. The processor receives data values representing the battery voltage, temperature and current, and the processor performs a series of calculations using those data values. The processor has normal, standby and sleep modes. In the normal mode, the processor performs the series of calculations at first regular cycles, and in the standby mode, the processor performs the series of calculations at second regular cycles, which are longer than the first cycles. Preferably, the processor enters the standby mode when the battery current falls below a predetermined current level, and the processor enters the sleep mode when the battery voltage falls below a first predetermined voltage level.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: May 27, 1997
    Assignee: Duracell, Inc.
    Inventors: Duong van Phuoc, Rudi Wieczorek, Elmar Zeising, Louis W. Hruska, Matthew P. Hull, Alwyn H. Taylor, Daniel D. Friel
  • Patent number: 5606242
    Abstract: A smart battery which provides electrical power and which reports predefined battery parameters to an external device having a power management system, includes: at least one rechargeable cell connected to a pair of terminals to provide electrical power to an external device during a discharge mode and to receive electrical power during a charge mode, as provided or determined by the remote device; a data bus for reporting predefined battery identification and charge parameters to the external device; analog devices for generating analog signals representative of battery voltage and current at said terminals, and an analog signal representative of battery temperature at said cell; a hybrid integrated circuit (IC) having a microprocessor for receiving the analog signals and converting them to digital signals representative of battery voltage, current and temperature, and calculating actual charge parameters over time from the digital signals, the calculations including one calculation according to the followin
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: February 25, 1997
    Assignee: Duracell, Inc.
    Inventors: Matthew P. Hull, Alwyn H. Taylor, Louis W. Hruska, Daniel D. Friel
  • 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: 4707421
    Abstract: The invention relates to spirally wound electrochemical cells in which the anode tab is located on a section of the anode that is sandwiched on both sides by cathode. This eliminates or minimizes problems normally associated with voltage reversal.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: November 17, 1987
    Assignee: Duracell Inc.
    Inventors: James B. McVeigh, Jr., Terrence F. Reise, 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: 4556613
    Abstract: A lithium-containing electrochemical cell with a glass-metal seal and cell terminal structure thereon with said glass comprising a glass loaded with alumina or other stable metal oxide or an aluminosilicate glass with or without such alumina or stable metal oxide loading.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: December 3, 1985
    Assignee: Duracell Inc.
    Inventors: Alwyn H. Taylor, Wayne L. Lees, Michael L. Cook
  • 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
  • Patent number: 4328288
    Abstract: A method for improving the stability of Li/MnO.sub.2 cells having organic electrolytes subject to gaseous decomposition and a manganese dioxide cathode having absorbed water therein in excess of crystalline bound water, with said manganese dioxide and absorbed water causing said gaseous decomposition. Said method comprises the step of predischarging said cell up to 5% of cell capacity prior to extended storage.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: May 4, 1982
    Assignee: Duracell International Inc.
    Inventor: Alwyn H. Taylor
  • Patent number: 4168351
    Abstract: Deterioration of a glass-to-metal seal in a lithium cell is prevented by protecting the exposed interior of the glass with a metal oxide or a non-conductive non-reactive polymeric material such as a fluorocarbon or a polyolefin stable in the presence of lithium and other cell components.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: September 18, 1979
    Assignee: P. R. Mallory & Co., Inc.
    Inventor: Alwyn H. Taylor
  • Patent number: 3947341
    Abstract: Scale formation on heat exchanger surfaces in contact with solutions containing scale-forming salts is inhibited by electrodeposition of polymerized phenol or phenylenediamine on the surfaces. The deposition is accomplished by holding the heat exchange surfaces at a controlled electrical potential in the presence of a solution containing a low concentration of the monomer.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: March 30, 1976
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventor: Alwyn H. Taylor