Patents by Inventor Andrew L. Loxley

Andrew L. Loxley 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: 8709647
    Abstract: An electrochemical device includes a first electrode in electrical communication with a first current collector, a second electrode in electrical communication with a second current collector and a crosslinked solid polymer in contact with the first and second electrodes. At least one of the first and second electrodes includes a network of electrically connected particles comprising an electroactive material, and the particles of one electrode exert a repelling force on the other electrode when the first and second electrodes are combined with an uncrosslinked precursor to the solid polymer.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: April 29, 2014
    Assignee: A123 Systems LLC
    Inventors: Antoni S. Gozdz, Richard K. Holman, Andrew L. Loxley, Ronnie Wilkins
  • Patent number: 8206469
    Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: June 26, 2012
    Assignees: A123 Systems, Inc., Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, William D. Moorehead, Antoni S. Gozdz, Richard K. Holman, Andrew L. Loxley, Gilbert N. Riley, Jr., Michael S. Viola
  • Patent number: 8168326
    Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: May 1, 2012
    Assignees: A123 Systems, Inc., Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, William D. Moorehead, Antoni S. Gozdz, Richard K. Holman, Andrew L. Loxley, Gilbert N. Riley, Jr., Michael S. Viola
  • Patent number: 8088512
    Abstract: An electrochemical device includes a first electrode in electrical communication with a first current collector, a second electrode in electrical communication with a second current collector and a crosslinked solid polymer in contact with the first and second electrodes. At least one of the first and second electrodes includes a network of electrically connected particles comprising an electroactive material, and the particles of one electrode exert a repelling force on the other electrode when the first and second electrodes are combined with an uncrosslinked precursor to the solid polymer.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: January 3, 2012
    Assignee: A123 Systems, Inc.
    Inventors: Antoni S. Gozdz, Richard K. Holman, Andrew L. Loxley, Ronnie Wilkins
  • Patent number: 7988746
    Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: August 2, 2011
    Assignees: A123 Systems, Inc., Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, William D. Moorehead, Antoni S. Gozdz, Richard K. Holman, Andrew L. Loxley, Gilbert N. Riley, Jr., Michael S. Viola
  • Patent number: 7843626
    Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: November 30, 2010
    Assignee: E Ink Corporation
    Inventors: Karl R. Amundson, Robert W. Zehner, Richard M. Webber, Katharine Geramita, Libing Zhang, Andrew L. Loxley, Gregg M. Duthaler, John E. Ritter, Michael L. Steiner, Mavyn M. Holman, Justin J. Abramson, Glen Crossley
  • Patent number: 7535624
    Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: May 19, 2009
    Assignee: E Ink Corporation
    Inventors: Karl R. Amundson, Robert W. Zehner, Richard M. Webber, Katherine Geramita, Libing Zhang, Andrew L. Loxley, Gregg M. Duthaler, John E. Ritter, Michael L. Steiner, Mavyn M. Holman, Justin J. Abramson, Glen Crossley
  • Publication number: 20080311470
    Abstract: An electrochemical device includes a first electrode in electrical communication with a first current collector, a second electrode in electrical communication with a second current collector and a crosslinked solid polymer in contact with the first and second electrodes. At least one of the first and second electrodes includes a network of electrically connected particles comprising an electroactive material, and the particles of one electrode exert a repelling force on the other electrode when the first and second electrodes are combined with an uncrosslinked precursor to the solid polymer.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 18, 2008
    Applicant: A123 SYSTEMS, INC.
    Inventors: Antoni S. GOZDZ, Richard K. HOLMAN, Andrew L. LOXLEY, Ronnie WILKINS
  • Publication number: 20080199764
    Abstract: A lithium secondary cell includes a plurality of stacked layers. Each stacked layer includes a lithium-containing positive electrode in electronic contact with a positive electrode current collector, a negative electrode in electronic contact with a negative electrode current collector, a separator positioned between the positive electrode and the negative electrode, and an electrolyte in ionic contact with the positive and negative electrodes. The positive current collector is in electrical connection with an external circuit and has a total thickness of at least about 200 ?m. The negative current collector is in electrical connection with an external circuit. The total cell polarization during a failure event reduces the rate of discharge such that catastrophic failure does not occur. Thus, the lithium secondary cell exhibits safer failure modes than conventional cells known in the art.
    Type: Application
    Filed: April 20, 2006
    Publication date: August 21, 2008
    Inventors: Richard K. Holman, Andrew L. Loxley
  • Patent number: 7387851
    Abstract: An electrochemical device includes a first electrode in electrical communication with a first current collector, a second electrode in electrical communication with a second current collector and a crosslinked solid polymer in contact with the first and second electrodes. At least one of the first and second electrodes includes a network of electrically connected particles comprising an electroactive material, and the particles of one electrode exert a repelling force on the other electrode when the first and second electrodes are combined with an uncrosslinked precursor to the solid polymer.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: June 17, 2008
    Assignee: A123 Systems, Inc.
    Inventors: Antoni S. Gozdz, Richard K. Holman, Andrew L. Loxley, Ronnie Wilkins
  • Patent number: 7318982
    Abstract: Compositions and methods are provided for coating electroactive particles. Coating materials include a conductive component and a low refractive index component. Coatings are provided in which the conductive and low refractive index components are linked and/or do not form phases having lengthscales greater than about 0.25 ?m. Coatings are provided in which the components are contained in sequential layers.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: January 15, 2008
    Assignee: A123 Systems, Inc.
    Inventors: Antoni S. Gozdz, Andrew L. Loxley, Anthony E. Pullen
  • Patent number: 7202991
    Abstract: An encapsulation material, intended for use in encapsulated electrophoretic displays, comprises the coacervation product of a polyanionic polymer having a vinyl main chain and a plurality of anionic groups bonded to the main chain, with a cationic or zwitterionic water-soluble polymer capable of forming an immiscible second phase on contact with the polyanionic polymer.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: April 10, 2007
    Assignee: E Ink Corporation
    Inventors: Libing Zhang, Kimberly L. Houde, Andrew L. Loxley, Richard J. Paolini, Jr., Michael L. Steiner
  • Patent number: 7110163
    Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: September 19, 2006
    Assignee: E Ink Corporation
    Inventors: Richard M. Webber, Joseph M. Jacobson, Gregg M. Duthaler, Karl R. Amundson, Jonathan D. Albert, Andrew L. Loxley, Mavyn M. Holman, Glen Crossley, Katharine Geramita
  • Patent number: 7087348
    Abstract: Electrodes for use in electrochemical devices are disclosed. More particularly coated electrode particles for use in solid electrochemical cells and materials and systems for improving electronic conductivity and repulsive force characteristics of an electrode network are disclosed. An article containing a plurality of distinct first particles that form an electrode network in which the distinct first particles are coated with a system of electrically conductive material is also disclosed. In some embodiments, the coating layer also includes a low refractive index material. In some embodiments, the coating layer of the electroactive material includes a plurality of second particles.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: August 8, 2006
    Assignee: A123 Systems, Inc.
    Inventors: Richard K. Holman, Yet Ming Chiang, Antoni S. Gozdz, Andrew L. Loxley, Benjamin Nunes, Michele Ostraat, Gilbert N. Riley, Michael S. Viola
  • Patent number: 7061663
    Abstract: An encapsulation material, intended for use in encapsulated electrophoretic displays, comprises the coacervation product of a polyanionic polymer having a vinyl main chain and a plurality of anionic groups bonded to the main chain, with a cationic or zwitterionic water-soluble polymer capable of forming an immiscible second phase on contact with the polyanionic polymer.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: June 13, 2006
    Assignee: E Ink Corporation
    Inventors: Lan Cao, Libing Zhang, Charles H. Honeyman, Kimberly L. Houde, Andrew L. Loxley, David D. Miller, Richard J. Paolini, Jr., Tibyron Quinn, Michael L. Steiner, Thomas H. Whitesides
  • Patent number: 6987603
    Abstract: An electrophoretic display (100) comprises a front light-transmissive substrate (112), a rear substrate (116) spaced from the front substrate (112) so as to leave a cavity, and an electrophoretic medium (102) in the cavity, the electrophoretic medium (102) comprising a liquid external phase (120) and a plurality of capsules (104) suspended in the liquid external phase (120), each of the capsules comprising a capsule wall, a suspending fluid (106) held within the capsule wall and at least one electrically charged particle (108, 110) suspended in the suspending fluid (106).
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: January 17, 2006
    Assignee: E Ink Corporation
    Inventors: Richard J. Paolini, Jr., Robert W. Zehner, Karl R. Amundson, Craig A. Herb, Alexi C. Arango, Andrew L. Loxley
  • Patent number: 6958848
    Abstract: An encapsulation material, intended for use in encapsulated electrophoretic displays, comprises the coacervation product of a polyanionic polymer having a vinyl main chain and a plurality of anionic groups bonded to the main chain, with a cationic or zwitterionic water-soluble polymer capable of forming an immiscible second phase on contact with the polyanionic polymer.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: October 25, 2005
    Assignee: E Ink Corporation
    Inventors: Lan Cao, Charles Howie Honeyman, Kimberly L. Houde, Andrew L. Loxley, David D. Miller, Richard J. Paolini, Jr., Tibyron Quinn, Michael L. Steiner, Thomas H. Whitesides, Libing Zhang
  • Publication number: 20040257635
    Abstract: An electrophoretic display (100) comprises a front light-transmissive substrate (112), a rear substrate (116) spaced from the front substrate (112) so as to leave a cavity, and an electrophoretic medium (102) in the cavity, the electrophoretic medium (102) comprising a liquid external phase (120) and a plurality of capsules (104) suspended in the liquid external phase (120), each of the capsules comprising a capsule wall, a suspending fluid (106) held within the capsule wall and at least one electrically charged particle (108, 110) suspended in the suspending fluid (106).
    Type: Application
    Filed: January 30, 2004
    Publication date: December 23, 2004
    Applicant: E INK CORPORATION
    Inventors: Richard J. Paolini, Robert W. Zehner, Karl R. Amundson, Craig A. Herb, Alexi C. Arango, Andrew L. Loxley
  • Publication number: 20040252360
    Abstract: An electro-optic display comprises a layer (130) of a solid electro-optic material, at least one electrode disposed adjacent the layer (130) of electro-optic material, and a layer (180) of a lamination adhesive interposed between the layer (130) of electro-optic material and the electrode, the lamination adhesive (180) having a higher electrical conductivity in a direction perpendicular to the layer of lamination adhesive than in the plane of the layer.
    Type: Application
    Filed: February 10, 2004
    Publication date: December 16, 2004
    Applicant: E INK CORPORATION
    Inventors: Richard M. Webber, Joseph M. Jacobson, Gregg M. Duthaler, Karl R. Amundson, Jonathan D. Albert, Andrew L. Loxley, Mavyn M. Holman, Glenn Crossley, Katharine Geramita
  • Patent number: 6693620
    Abstract: Methods and apparatus for an electrophoretic display in which the particle motion is a controlled, non-linear function of the applied electric field. Threshold addressing allows simple, inexpensive passive addressing techniques to be employed. The inverse electrorheological gating techniques allow the construction of a full color, passively addressed display without the need to address individual capsules. A mixture of capsules is coated randomly onto a substrate enabling the creation of inexpensive displays. All the techniques allow a significant threshold to be realized. Rapid movement of the pigment particles above the threshold allows rapid switching times for the display. Since diffusion and gravity are extremely weak forces compared to the yield stresses created, the structured or gelled medium approach provides a great improvement in the bistability of the displays.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: February 17, 2004
    Assignee: E Ink Corporation
    Inventors: Craig A. Herb, Ian D. Morrison, Andrew L. Loxley