Patents by Inventor Mark Gerrit Roelofs

Mark Gerrit Roelofs 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: 20230395858
    Abstract: The present disclosure is related to an electrolyte composition comprising from 30 to 80% by weight of CH3CO2CH2CF2H, from 10 to 60% by weight of ethylene carbonate or propylene carbonate, from 0.1 to 1.0% by weight of lithium bis(oxalate) borate, from 0.2 to 2.0 moles/L of lithium hexafluorophosphate and from 0.1 to 2% by weight of fluoroethylene carbonate, where the amounts of compounds are based on the total weight of the electrolyte composition, and where when used as an electrolyte in a lithium-ion battery, the composition exhibits an 80% cycle life of at least 250 at a cycling rate is 240 mA/g.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 7, 2023
    Applicant: Solvay SA
    Inventors: Stephen E. Burkhardt, Kostantinos Kourtakis, Mark Gerrit Roelofs, Charles J. Dubois
  • Patent number: 11374260
    Abstract: Disclosed herein are electrolyte compositions comprising a fluorinated solvent, a fluorinated sulfone, at least one component selected from a borate salt, and/or an oxalate salt, and/or a fluorinated cyclic carbonate, and at least one electrolyte salt. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or combinations thereof. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: June 28, 2022
    Inventors: Stephen E. Burkhardt, Kostantinos Kourtakis, Mark Gerrit Roelofs
  • Patent number: 11316201
    Abstract: A lithium ion battery that has a 5 V stabilized manganese cathode and a nonaqueous electrolyte comprising a phosphate additive is described. The lithium ion battery operates with a high voltage cathode (i.e. up to about 5 V) and has improved cycling performance at high temperature.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: April 26, 2022
    Assignee: Solvay SA
    Inventors: Charles J. Dubois, Viacheslav A. Petrov, Mark Gerrit Roelofs
  • Patent number: 11289738
    Abstract: Described herein are: An electrolyte composition comprising a) a fluorinated solvent for an electrolyte salt; b) an oxalate salt represented by the Formula LiPF(6-2q)(Ox)q, wherein Ox is an oxalate moiety and q is 1, 2 or 3; and c) optionally, at least one electrolyte salt. In some embodiments, the electrolyte composition comprises a mole ratio of Ox/P in the range of from 0.001 to 5. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: March 29, 2022
    Assignee: Solvay SA
    Inventors: Samuel David Arthur, Stephen E. Burkhardt, Kostantinos Kourtakis, Brian Levy-Polis, Jun J. Liu, Mark Gerrit Roelofs
  • Patent number: 10916805
    Abstract: Electrolyte compositions comprising fluorinated acyclic carboxylic acid esters, fluorinated acyclic carbonates, and/or fluorinated acyclic ethers; co-solvents; and certain film-forming chemical compounds are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries where they provide the improved performance of a combination of high capacity and high cycle life.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: February 9, 2021
    Assignee: Solvay SA
    Inventors: Xudong Chen, Charles J. Dubois, William L. Holstein, Kostantinos Kourtakis, Mark Gerrit Roelofs
  • Publication number: 20200321657
    Abstract: Disclosed herein are electrolyte compositions comprising a fluorinated solvent, a fluorinated sulfone, at least one component selected from a borate salt, and/or an oxalate salt, and/or a fluorinated cyclic carbonate, and at least one electrolyte salt. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or combinations thereof. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Application
    Filed: June 3, 2016
    Publication date: October 8, 2020
    Inventors: Stephen E. BURKHARDT, Kostantinos KOURTAKIS, Mark Gerrit ROELOFS
  • Patent number: 10686220
    Abstract: Electrolyte compositions comprising fluorinated acyclic carboxylic acid esters, fluorinated acyclic carbonates, and/or fluorinated acyclic ethers; co-solvents; and certain film-forming chemical compounds are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries where they provide the improved performance of a combination of high capacity and high cycle life.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: June 16, 2020
    Assignee: Solvay SA
    Inventors: Stephen E. Burkhardt, Xudong Chen, Charles J. Dubois, William L. Holstein, Kostantinos Kourtakis, Mark Gerrit Roelofs
  • Patent number: 10673096
    Abstract: Described are electrolyte compositions comprising a fluorinated solvent, an organic carbonate, a sultone, and optionally a borate. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or mixtures thereof. The organic carbonate may be fluorinated or non-fluorinated. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: June 2, 2020
    Assignee: Solvay SA
    Inventors: Stephen E. Burkhardt, Kostantinos Kourtakis, Jun J. Liu, Mark Gerrit Roelofs, Sang-Hwan Kim
  • Patent number: 10559850
    Abstract: Described herein are electrolyte compositions containing an organic carbonate, a fluorinated solvent, a cyclic sulfate, and at least one electrolyte salt. The cyclic sulfate can be represented by the formula: wherein each A is independently a hydrogen or an optionally fluorinated vinyl, allyl, acetylenic, propargyl, or C1-C3 alkyl group. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: February 11, 2020
    Assignee: Solvay SA
    Inventors: Charles J. Dubois, Kostantinos Kourtakis, Jun J. Liu, Mark Gerrit Roelofs
  • Patent number: 10205192
    Abstract: Described are electrolyte compositions containing a non-fluorinated carbonate, a fluorinated solvent, a cyclic sulfate, at least one lithium borate salt selected from lithium bis(oxalato)borate, lithium difluoro(oxalato)borate, lithium tetrafluoroborate, or mixtures thereof, and at least one electrolyte salt. The cyclic sulfate can be represented by the formula: wherein each A is independently a hydrogen or an optionally fluorinated vinyl, allyl, acetylenic, propargyl, or C1-C3 alkyl group. The electrolyte composition may further comprise a fluorinated cyclic carbonate. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: February 12, 2019
    Assignee: Solvay SA
    Inventors: Charles J. Dubois, Kostantinos Kourtakis, Jun J. Liu, Mark Gerrit Roelofs
  • Publication number: 20180301759
    Abstract: A lithium ion battery that has a 5 V stabilized manganese cathode and a nonaqueous electrolyte comprising a phosphate additive is described. The lithium ion battery operates with a high voltage cathode (i.e. up to about 5 V) and has improved cycling performance at high temperature.
    Type: Application
    Filed: June 22, 2018
    Publication date: October 18, 2018
    Applicant: Solvay SA
    Inventors: Charles J. Dubois, Viacheslav A. Petrov, Mark Gerrit Roelofs
  • Patent number: 10074874
    Abstract: A lithium ion battery that has a 5 V stabilized manganese cathode and a nonaqueous electrolyte comprising a phosphate additive is described. The lithium ion battery operates with a high voltage cathode (i.e. up to about 5 V) and has improved cycling performance at high temperature.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: September 11, 2018
    Assignee: Solvay SA
    Inventors: Charles J. Dubois, Viacheslav A. Petrov, Mark Gerrit Roelofs
  • Publication number: 20180241086
    Abstract: Described herein are: An electrolyte composition comprising a) a fluorinated solvent for an electrolyte salt; b) an oxalate salt represented by the Formula LiPF(6-2q)(Ox)q, wherein Ox is an oxalate moiety and q is 1, 2 or 3; and c) optionally, at least one electrolyte salt. In some embodiments, the electrolyte composition comprises a mole ratio of Ox/P in the range of from 0.001 to 5. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Application
    Filed: June 3, 2016
    Publication date: August 23, 2018
    Inventors: Samuel David ARTHUR, Stephen E. BURKHARDT, Kostantinos KOURTAKIS, Brian LEVY-POLIS, Jun J. LIU, Mark Gerrit ROELOFS
  • Patent number: 9979050
    Abstract: Electrolyte compositions containing a solvent mixture comprising 2,2,-difluoroethyl acetate and ethylene carbonate are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 22, 2018
    Assignee: Solvay SA
    Inventors: William L Holstein, Xudong Chen, Jun J Liu, Mark Gerrit Roelofs
  • Publication number: 20170250445
    Abstract: Described are electrolyte compositions comprising a fluorinated solvent, an organic carbonate, a sultone, and optionally a borate. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or mixtures thereof. The organic carbonate may be fluorinated or non-fluorinated. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Application
    Filed: August 12, 2015
    Publication date: August 31, 2017
    Applicant: Solvay SA
    Inventors: Stephen E. Burkhardt, Kostantinos Kourtakis, Jun J. Liu, Mark Gerrit Roelofs, Sang-Hwan Kim
  • Patent number: 9673450
    Abstract: A lithium ion battery that has a spinel cathode and a nonaqueous electrolyte comprising a fluorinated acyclic carboxylic acid ester and/or a fluorinated acyclic carbonate solvent is described. The lithium ion battery operates at a high voltage (i.e. up to about 5 V) and has improved cycling performance at high temperature.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: June 6, 2017
    Assignee: Solvay SA
    Inventors: Xudong Chen, Jun J Liu, Mark Gerrit Roelofs
  • Publication number: 20170117586
    Abstract: Described are electrolyte compositions containing a non-fluorinated carbonate, a fluorinated solvent, a cyclic sulfate, at least one lithium borate salt selected from lithium bis(oxalato)borate, lithium difluoro(oxalato)borate, lithium tetrafluoroborate, or mixtures thereof, and at least one electrolyte salt. The cyclic sulfate can be represented by the formula: wherein each A is independently a hydrogen or an optionally fluorinated vinyl, allyl, acetylenic, propargyl, or C1-C3 alkyl group. The electrolyte composition may further comprise a fluorinated cyclic carbonate. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Application
    Filed: May 14, 2015
    Publication date: April 27, 2017
    Inventors: Charles J. DUBOIS, Kostantinos KOURTAKIS, Jin J. LIU, Mark Gerrit ROELOFS
  • Publication number: 20170084951
    Abstract: Described herein are electrolyte compositions containing an organic carbonate, a fluorinated solvent, a cyclic sulfate, and at least one electrolyte salt. The cyclic sulfate can be represented by the formula: wherein each A is independently a hydrogen or an optionally fluorinated vinyl, allyl, acetylenic, propargyl, or C1-C3 alkyl group. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Application
    Filed: May 14, 2015
    Publication date: March 23, 2017
    Inventors: Charles J. Dubois, Kostantinos Kourtakis, Jun J. Liu, Mark Gerrit Roelofs
  • Patent number: 9461312
    Abstract: An electrode (31c) for fuel cell comprises: a catalyst carrier (110) that is an electrically-conductive carrier (130) with a catalyst (120) supported thereon; a first electrolyte resin (141); and a second electrolyte resin (142). The first electrolyte resin has oxygen permeability of less than 2.2×10?14 mol/(m s Pa) in an environment having temperature of 80 degrees Celsius and relative humidity of 50%. The second electrolyte resin has oxygen permeability of not less than 2.2×10?14 mol/(m s Pa) in the environment having temperature of 80 degrees Celsius and relative humidity of 50%.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: October 4, 2016
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, E.I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Masanori Aimu, Randal Lewis Perry, Mark Gerrit Roelofs, Robert Clayton Wheland, Ralph Munson Aten, Andri E. Elia
  • Patent number: 9431661
    Abstract: A cathode catalyst layer used for a polymer electrolyte fuel cell that includes an electrolyte membrane is provided. The cathode catalyst layer comprises a catalyst having weight of not greater than 0.3 mg/cm2 of a reaction surface of the cathode catalyst layer that is adjoining the electrolyte membrane; and an electrolyte resin having oxygen permeability of not less than 2.2*10?14 mol/m/s/Pa in an environment of temperature of 80 degrees Celsius and relative humidity of 50%.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: August 30, 2016
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, E.I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Nobuaki Nonoyama, Masanori Aimu, Randal Lewis Perry, Mark Gerrit Roelofs, Robert Clayton Wheland, Ralph Munson Aten