Patents by Inventor Gerbrand Ceder

Gerbrand Ceder 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).

  • Publication number: 20150303525
    Abstract: An energy storage device configured to exchange energy with an external device includes a container having walls, a lid covering the container and having a safety pressure valve, a negative electrode disposed away from the walls of the container, a positive electrode in contact with at least a portion of the walls of the container, and an electrolyte contacting the negative electrode and the positive electrode at respective electrode/electrolyte interfaces. The negative electrode, the positive electrode and the electrolyte include separate liquid materials within the container at an operating temperature of the battery.
    Type: Application
    Filed: June 30, 2015
    Publication date: October 22, 2015
    Inventors: David J. Bradwell, Gerbrand Ceder, Luis Ortiz, Donald R. Sadoway
  • Patent number: 9159991
    Abstract: This invention relates generally to electrode materials, electrochemical cells employing such materials, and methods of synthesizing such materials. The electrode materials have a crystal structure with a high ratio of Li to metal M, which is found to improve capacity by enabling the transfer of a greater amount of lithium per metal, and which is also found to improve stability by retaining a sufficient amount of lithium after charging. Furthermore, synthesis techniques are presented which result in improved charge and discharge capacities and reduced particle sizes of the electrode materials.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: October 13, 2015
    Assignee: Massachusetts Institute of Technology
    Inventors: Gerbrand Ceder, Anubhav Jain, Geoffroy Hautier, Jae Chul Kim, Byoungwoo Kang, Robert Daniel
  • Publication number: 20150204809
    Abstract: Non-normal statistics applied to diffusivity calculations accelerate screening of ionic conductors for electrochemical devices such as electric storage batteries, fuel cells, and sensors. Displacements of atomic species within a crystalline structure for a candidate ionic conductor material are analyzed using a Skellam distribution optionally combined with Gaussian noise to calculate values for the standard deviation, upper error bound, and lower error bound for predicted values of diffusivity (D). When the predicted values of D have sufficient statistical precision, the diffusivity calculation is terminated and the calculated diffusivity is compared to a threshold value of diffusivity. When the threshold has been exceeded, the candidate ionic conductor may be listed as a preferred good conductor. When the calculated diffusivity fails to exceed the threshold, the material may be listed as a poor conductor and may be eliminated from further consideration.
    Type: Application
    Filed: November 7, 2014
    Publication date: July 23, 2015
    Inventors: Lincoln J. Miara, William Richards, Shyue Ping Ong, Yifei Mo, Gerbrand Ceder
  • Patent number: 9076996
    Abstract: An electrochemical battery that exchanges energy with an external device. The battery includes a container containing a positive electrode, a negative electrode and an intervening electrolyte, the electrodes and electrolyte existing as liquid material layers in the container at the operating temperature of the battery so that adjacent layers form respective electrode-electrolyte interfaces. Positive and negative current collectors are in electrical contact with the positive and negative electrodes, respectively, both collectors being adapted for connection to the external device to create a circuit through which current flows. A circulation producer in the battery causes circulation within at least one of the layers to increase the flux of material in one layer to an interface with an adjacent layer, thereby giving the battery a greater current/power capability.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: July 7, 2015
    Assignee: Massachusetts Institute of Technology
    Inventors: David J. Bradwell, Gerbrand Ceder, Luis Ortiz, Donald R. Sadoway
  • Patent number: 9077032
    Abstract: A compound of formula Ab?MgaMbXy or Ab?MgaMb(XOz)y for use as electrode material in a magnesium battery is disclosed, wherein A, M, X, b?, a, b, y, and z are defined herein.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: July 7, 2015
    Assignee: PELLON TECHNOLOGIES, INC.
    Inventors: Robert Ellis Doe, Timothy Keith Mueller, Gerbrand Ceder, Jeremy Barker, Kristin Aslaug Persson
  • Patent number: 8999282
    Abstract: The present invention generally relates to carbophosphates and other compounds. Such compounds may be used in batteries and other electrochemical devices, or in other applications such as those described herein. One aspect of the invention is generally directed to carbophosphate compounds, i.e., compounds containing carbonate and phosphate ions. For example, according to one set of embodiments, the compound has a formula Ax(M)(PO4)a(CO3)b, where M comprises one or more cations. A may include one or more alkali metals, for example, lithium and/or sodium. In some cases, x is greater than about 0.1, a is between about 0.1 and about 5.1, and b is between about 0.1 and about 5.1. In certain embodiments, the compound may have a unit cell atomic arrangement that is isostructural to unit cells of the minerals sidorenkite, bonshtedtite, bradleyite, crawfordite, or ferrotychite.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: April 7, 2015
    Assignee: Massachusetts Institute of Technology
    Inventors: Gerbrand Ceder, Hailong Chen, Robert E. Doe, Geoffroy Hautier, Anubhav Jain, ByoungWoo Kang
  • Publication number: 20150023857
    Abstract: One embodiment provides a method, comprising: calculating, using at least one computer, a distance to a hull for an alloy XxY1-x in the range 0.01?x?0.99, where X and Y are perovskite materials; determining, using the at least one computer, a preferred phase for the alloy in the range 0.01?x?0.99; and selecting an alloy composition having the distance to the hull being less than 0.1 eV/atom and for which the preferred phase in at least a portion of the range 0.01?x?0.99 is a tetragonal phase. Piezoelectric materials as selected by the method are also provided.
    Type: Application
    Filed: July 15, 2014
    Publication date: January 22, 2015
    Applicants: Massachusetts Institute of Technology, Central Michigan University, Robert Bosch LLC Research and Technology Center
    Inventors: Rickard Roberto ARMIENTO, Gerbrand CEDER, Marco FORNARI, Geoffroy HAUTIER, Boris KOZINSKY
  • Publication number: 20140246619
    Abstract: In general, the invention relates to electrode materials, e.g., novel cathode materials with high density, low cost, and high safety. A voltage design strategy based on the mixing of different transition metals in crystal structures known to be able to accommodate lithium in insertion and delithiation is presented herein. By mixing a metal active on the +2/+3 couple (e.g., Fe) with an element active on the +3/+5 or +3/+6 couples (e.g., V or Mo), high capacity multi-electron cathodes are designed in an adequate voltage window.
    Type: Application
    Filed: January 10, 2014
    Publication date: September 4, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Geoffroy Hautier, Anubhav Jain, Timothy Keith Mueller, Gerbrand Ceder
  • Publication number: 20140141329
    Abstract: The present disclosure describes, among other things, new layered molybdenum oxides for lithium ion battery cathodes from solid solutions of Li2MoO3 and LiCrO2. These materials display high energy density, good rate capability, great safety against oxygen release at charged state due mostly to their low voltage. Therefore, these materials have properties desirable for lithium ion battery cathodes.
    Type: Application
    Filed: October 2, 2013
    Publication date: May 22, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Gerbrand Ceder, Jinhyuk Lee, Sangtae Kim, Xin Li
  • Publication number: 20140106214
    Abstract: Electrochemical devices which incorporate cathode materials that include layered crystalline compounds for which a structural modification has been achieved which increases the diffusion rate of multi-valent ions into and out of the cathode materials. Examples in which the layer spacing of the layered electrode materials is modified to have a specific spacing range such that the spacing is optimal for diffusion of magnesium ions are presented. An electrochemical cell comprised of a positive intercalation electrode, a negative metal electrode, and a separator impregnated with a nonaqueous electrolyte solution containing multi-valent ions and arranged between the positive electrode and the negative electrode active material is described.
    Type: Application
    Filed: March 11, 2013
    Publication date: April 17, 2014
    Applicant: PELLION TECHNOLOGIES, INC.
    Inventors: Robert Ellis Doe, Craig Michael Downie, Christopher Fischer, George Hamilton Lane, Dane Morgan, Josh Nevin, Gerbrand Ceder, Kristin Aslaug Persson, David Eaglesham
  • Publication number: 20140099549
    Abstract: This disclosure provides a positive electrode active lithium-excess metal oxide with composition LixMyO2 (0.6?y?0.85 and 0?x+y?2) for a lithium secondary battery with a high reversible capacity that is insensitive with respect to cation-disorder. The material exhibits a high capacity without the requirement of overcharge during the first cycles.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 10, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Gerbrand Ceder, Jinhyuk Lee, Alexander Urban, Xin Li, Sangtae Kim, Geoffroy Hautier
  • Patent number: 8568611
    Abstract: The present invention generally relates to unique coatings for use with energy storage particles, such as lithium oxide energy storage materials. The invention provides unique coatings for particles, unique particle/coating combinations, and unique methods for making coatings and/or coated particles. In one aspect of the invention, a particle is formed having a core and a coating. The particle may comprise a core having a material such as LiFePO4, and a coating. The particle may be formed, in some embodiments, by using a non-stoichiometric combination of salts or other precursors, and sintering the same to form particles. LiFePO4 may form as the core of the particle, while the remaining materials may form a coating around the LiFePO4. Typically, the LiFePO4 is crystalline while the coating is generally amorphous, and in some instances, the coating may prevent large crystals of LiFePO4 from forming.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: October 29, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Gerbrand Ceder, ByoungWoo Kang
  • Publication number: 20130273425
    Abstract: This invention relates generally to electrode materials, electrochemical cells employing such materials, and methods of synthesizing such materials. The electrode materials have a crystal structure with a high ratio of Li to metal M, which is found to improve capacity by enabling the transfer of a greater amount of lithium per metal, and which is also found to improve stability by retaining a sufficient amount of lithium after charging. Furthermore, synthesis techniques are presented which result in improved charge and discharge capacities and reduced particle sizes of the electrode materials.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 17, 2013
    Inventors: Gerbrand Ceder, Anubhav Jain, Geoffroy Hautier, Jae Chul Kim, Byoungwoo Kang, Robert Daniel
  • Publication number: 20130260225
    Abstract: Electrochemical devices which incorporate cathode materials that include layered crystalline compounds for which a structural modification has been achieved which increases the diffusion rate of multi-valent ions into and out of the cathode materials. Examples in which the layer spacing of the layered electrode materials is modified to have a specific spacing range such that the spacing is optimal for diffusion of magnesium ions are presented. An electrochemical cell comprised of a positive intercalation electrode, a negative metal electrode, and a separator impregnated with a nonaqueous electrolyte solution containing multi-valent ions and arranged between the positive electrode and the negative electrode active material is described.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 3, 2013
    Applicant: Pellion Technologies, Inc.
    Inventors: Robert Ellis Doe, Craig Michael Downie, Christopher Fischer, George Hamilton Lane, Dane Morgan, Josh Nevin, Gerbrand Ceder, Kristin Aslaug Persson, David Eaglesham
  • Publication number: 20130260238
    Abstract: Electrochemical devices which incorporate cathode materials that include layered crystalline compounds for which a structural modification has been achieved which increases the diffusion rate of multi-valent ions into and out of the cathode materials. Examples in which the layer spacing of the layered electrode materials is modified to have a specific spacing range such that the spacing is optimal for diffusion of magnesium ions are presented. An electrochemical cell comprised of a positive intercalation electrode, a negative metal electrode, and a separator impregnated with a nonaqeuous electrolyte solution containing multi-valent ions and arranged between the positive electrode and the negative electrode active material is described.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 3, 2013
    Applicant: PELLION TECHNOLOGIES, INC.
    Inventors: Robert Ellis Doe, Craig Michael Downie, Christopher Fischer, George Hamilton Lane, Dane Morgan, Josh Nevin, Gerbrand Ceder, Kristin Aslaug Persson, David Eaglesham
  • Patent number: 8529800
    Abstract: Certain disclosed embodiments generally relate to oxide materials having relatively high energy and/or power densities. Various aspects of the embodiments are directed to oxide materials having a structure Bi(MjYk)O2, for example, a structure Lij(NijYk)O2 such as Li(Ni0.5Mn0.5)O2. In this structure, Y represents one or more atoms, each independently selected from the group consisting of alkaline earth metals, transition metals, Group 14 elements, Group 15, or Group 16 elements. In some embodiments, such an oxide material may have an O3 crystal structure, and/or a layered structure such that the oxide comprises a plurality of first, repeating atomic planes comprising Li, and a plurality of second, repeating atomic planes comprising Ni and/or Y.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: September 10, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Gerbrand Ceder, Kisuk Kang
  • Publication number: 20130099174
    Abstract: The present invention generally relates to certain lithium materials, including lithium manganese borate materials. Such materials are of interest in various applications such as energy storage. Certain aspects of the invention are directed to lithium manganese borate materials, for example, having the formula LixMny(BO3). In some cases, the lithium manganese borate materials may include other elements, such as iron, magnesium, copper, zinc, calcium, etc. The lithium manganese borate materials, according to one set of embodiments, may be present as a monoclinic crystal system. Such materials may surprisingly exhibit relatively high energy storage capacities, for example, at least about 96 mA h/g. Other aspects of the invention relate to devices comprising such materials, methods of making such materials, kits for making such materials, methods of promoting the making or use of such materials, and the like.
    Type: Application
    Filed: May 5, 2011
    Publication date: April 25, 2013
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Gerbrand Ceder, Jae Chul Kim, ByoungWoo Kang, Charles J. Moore, Geoffroy Hautier
  • Publication number: 20130089486
    Abstract: The present invention generally relates to carbophosphates and other compounds. Such compounds may be used in batteries and other electrochemical devices, or in other applications such as those described herein. One aspect of the invention is generally directed to carbophosphate compounds, i.e., compounds containing carbonate and phosphate ions. For example, according to one set of embodiments, the compound has a formula Ax(M)(PO4)a(CO3)b, where M comprises one or more cations. A may include one or more alkali metals, for example, lithium and/or sodium. In some cases, x is greater than about 0.1, a is between about 0.1 and about 5.1, and b is between about 0.1 and about 5.1. In certain embodiments, the compound may have a unit cell atomic arrangement that is isostructural to to unit cells of the minerals sidorenkite, bonshtedtite, bradleyite, crawfordite, or ferrotychite.
    Type: Application
    Filed: February 22, 2011
    Publication date: April 11, 2013
    Applicant: Massachusetts Institute of Technology
    Inventors: Gerbrand Ceder, Hailong Chen, Robert E. Doe, Geoffrey Hautier, Anubhav Jain, ByoungWoo Kang
  • Patent number: 8399130
    Abstract: This invention relates generally to electrode materials, electrochemical cells employing such materials, and methods of synthesizing such materials. The electrode materials have a crystal structure with a high ratio of Li to metal M, which is found to improve capacity by enabling the transfer of a greater amount of lithium per metal, and which is also found to improve stability by retaining a sufficient amount of lithium after charging. Furthermore, synthesis techniques are presented which result in improved charge and discharge capacities and reduced particle sizes of the electrode materials.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: March 19, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Gerbrand Ceder, Anubhav Jain, Geoffroy Hautier, Jae Chul Kim, Byoungwoo Kang, Robert Daniel
  • Publication number: 20130045408
    Abstract: An electrochemical method and apparatus for high-amperage electrical energy storage features a high-temperature, all-liquid chemistry. The reaction products created during charging remain part of the electrodes during storage for discharge on demand. In a simultaneous ambipolar electrodeposition cell, a reaction compound is electrolyzed to effect transfer from an external power source; the electrode elements are electrodissolved during discharge.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 21, 2013
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Donald Sadoway, Gerbrand Ceder, David Bradwell