Patents by Inventor Patrick C. Howlett

Patrick C. Howlett 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).

  • Electrochemical cell
    Patent number: 11961963
    Abstract: A sodium electrochemical cell that supports a current density at the negative electrode of at least 500 ?A/cm2, the electrochemical cell comprising (i) a negative electrode and (ii) a sodium-ion ionic liquid electrolyte having a sodium-ion concentration that is no less than 75% of its saturation limit in the electrolyte, wherein the negative electrode has a solid-electrolyte interphase (SEI) layer formed as a result of the electrochemical cell having undergone a polarisation cycle.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: April 16, 2024
    Assignee: DEAKIN UNIVERSITY
    Inventors: Patrick C. Howlett, Maria Forsyth, Douglas Robert Macfarlane, Hyun Gook Yoon
  • Electrolyte composition
    Patent number: 11522220
    Abstract: An electrolyte composition comprising (i) a block copolymer, (ii) an organic electrolyte (e.g. an ionic liquid), and (iii) a lithium salt, wherein the block copolymer comprises a non-ionic block and an ionic block, the non-ionic block comprising polymerised residues of hydrophobic monomers, and the ionic block comprising polymerised monomer residues having covalently coupled thereto (a) a pendant organic ionic liquid cation, the pendant organic ionic liquid cation having a counter anion, (b) a pendant anionic moiety, the pendant anionic moiety having a counter cation, or (c) a combination thereof, and the electrolyte composition has at least two glass transition temperature (Tg) values.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 6, 2022
    Assignee: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: John Chiefari, Kristine Barlow, Nicolas Goujon, Xiaojuan Hao, Maria Forsyth, Patrick C. Howlett
  • Sodium-ion electrolyte composition
    Patent number: 10957938
    Abstract: A sodium-ion electrolyte composition for use in an electrochemical cell, the electrolyte composition comprising a mixture of a phosphonium salt and a sodium salt, wherein the electrolyte composition presents as a solid up to at least 25° C.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: March 23, 2021
    Assignees: Deakin University, Monash University
    Inventors: Maria Forsyth, Matthias Hilder, Patrick C. Howlett, Faezeh Makhlooghiazad, Douglas Robert MacFarlane
  • ELECTROLYTE COMPOSITION
    Publication number: 20200280095
    Abstract: An electrolyte composition comprising (i) a block copolymer, (ii) an organic electrolyte (e.g. an ionic liquid), and (iii) a lithium salt, wherein the block copolymer comprises a non-ionic block and an ionic block, the non-ionic block comprising polymerised residues of hydrophobic monomers, and the ionic block comprising polymerised monomer residues having covalently coupled thereto (a) a pendant organic ionic liquid cation, the pendant organic ionic liquid cation having a counter anion, (b) a pendant anionic moiety, the pendant anionic moiety having a counter cation, or (c) a combination thereof, and the electrolyte composition has at least two glass transition temperature (Tg) values.
    Type: Application
    Filed: November 2, 2018
    Publication date: September 3, 2020
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: John Chiefari, Kristine Barlow, Nicolas Goujon, Xiaojuan Hao, Maria Forsyth, Patrick C. Howlett
  • SODIUM-ION ELECTROLYTE COMPOSITION
    Publication number: 20180358654
    Abstract: A sodium-ion electrolyte composition for use in an electrochemical cell, the electrolyte composition comprising a mixture of a phosphonium salt and a sodium salt, wherein the electrolyte composition presents as a solid up to at least 25° C.
    Type: Application
    Filed: November 30, 2016
    Publication date: December 13, 2018
    Inventors: Maria Forsyth, Matthias Hilder, Patrick C. Howlett, Faezeh Makhlooghiazad, Douglas Robert MacFarlane
  • ELECTROCHEMICAL CELL
    Publication number: 20180151916
    Abstract: A sodium electrochemical cell that supports a current density at the negative electrode of at least 500 ?A/cm2, the electrochemical cell comprising (i) a negative electrode and (ii) a sodium-ion ionic liquid electrolyte having a sodium-ion concentration that is no less than 75% of its saturation limit in the electrolyte, wherein the negative electrode has a solid-electrolyte interphase (SEI) layer formed as a result of the electrochemical cell having undergone a polarisation cycle.
    Type: Application
    Filed: May 20, 2016
    Publication date: May 31, 2018
    Inventors: Patrick C. Howlett, Maria Forsyth, Douglas Robert Macfarlane, Hyun Gook Yoon