Patents by Inventor Sean MacKinnon

Sean MacKinnon 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: 20200328432
    Abstract: A fuel cell power module includes a cylindrical housing encasing a fuel cell stack and an air supply. The housing has a major interior surface. The fuel cell stack can be cylindrical or hexagonal, and comprises fuel cells having an anode and an anode flow field plate, a cathode and a cathode flow field plate, and a membrane electrolyte interposed between the anode and the cathode. The air supply is directed to the plurality of fuel cell cathode flow field plates via a plenum defined by a space between the fuel cell stack and the housing major interior surface. The hexagonal fuel cell stack can be formed by a plurality of fuel cell groups shaped such that when aligned the fuel cell groups together constitute the hexagonal fuel cell stack.
    Type: Application
    Filed: June 29, 2020
    Publication date: October 15, 2020
    Inventors: David E. Leger, Matthew P. Paone, Greg J. Montie, Sean MacKinnon, Raoul Kingma
  • Patent number: 10734661
    Abstract: A fuel cell power module includes a cylindrical housing encasing a fuel cell stack and an air supply. The housing has a major interior surface. The fuel cell stack can be cylindrical or hexagonal, and comprises fuel cells having an anode and an anode flow field plate, a cathode and a cathode flow field plate, and a membrane electrolyte interposed between the anode and the cathode. The air supply is directed to the plurality of fuel cell cathode flow field plates via a plenum defined by a space between the fuel cell stack and the housing major interior surface. The hexagonal fuel cell stack can be formed by a plurality of fuel cell groups shaped such that when aligned the fuel cell groups together constitute the hexagonal fuel cell stack.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: August 4, 2020
    Assignee: LOOP ENERGY INC.
    Inventors: David E. Leger, Matthew P. Paone, Greg J. Montie, Sean MacKinnon, Raoul Kingma
  • Publication number: 20190140289
    Abstract: A fuel cell power module includes a cylindrical housing encasing a fuel cell stack and an air supply. The housing has a major interior surface. The fuel cell stack can be cylindrical or hexagonal, and comprises fuel cells having an anode and an anode flow field plate, a cathode and a cathode flow field plate, and a membrane electrolyte interposed between the anode and the cathode. The air supply is directed to the plurality of fuel cell cathode flow field plates via a plenum defined by a space between the fuel cell stack and the housing major interior surface. The hexagonal fuel cell stack can be formed by a plurality of fuel cell groups shaped such that when aligned the fuel cell groups together constitute the hexagonal fuel cell stack.
    Type: Application
    Filed: June 19, 2018
    Publication date: May 9, 2019
    Inventors: David E. Leger, Matthew P. Paone, Greg J. Montie, Sean MacKinnon, Raoul Kingma
  • Patent number: 10062913
    Abstract: A fuel cell power module includes a cylindrical housing encasing a fuel cell stack and an air supply. The housing has a major interior surface. The fuel cell stack can be cylindrical or hexagonal, and comprises fuel cells having an anode and an anode flow field plate, a cathode and a cathode flow field plate, and a membrane electrolyte interposed between the anode and the cathode. The air supply is directed to the plurality of fuel cell cathode flow field plates via a plenum defined by a space between the fuel cell stack and the housing major interior surface. The hexagonal fuel cell stack can be formed by a plurality of fuel cell groups shaped such that when aligned the fuel cell groups together constitute the hexagonal fuel cell stack.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: August 28, 2018
    Assignee: Loop Energy Inc.
    Inventors: David E. Leger, Matthew P. Paone, Greg J. Montie, Sean MacKinnon, Raoul Kingma
  • Patent number: 9306232
    Abstract: A filtration device for a fuel cell system is provided. The filtration device includes a filter adapted to receive a reactant for a fuel cell. The filter includes a molecular sieve material adapted to separate a contaminant from the reactant supplied to the fuel cell. A membrane electrode assembly having the filter integrally formed therewith, and a fuel cell stack having the filter disposed adjacent at least one of the end plates of the fuel cell stack, are also provided.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: April 5, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Kelly O'Leary, Sean Mackinnon, Michael Budinski
  • Publication number: 20150180079
    Abstract: A fuel cell power module includes a cylindrical housing encasing a fuel cell stack and an air supply. The housing has a major interior surface. The fuel cell stack can be cylindrical or hexagonal, and comprises fuel cells having an anode and an anode flow field plate, a cathode and a cathode flow field plate, and a membrane electrolyte interposed between the anode and the cathode. The air supply is directed to the plurality of fuel cell cathode flow field plates via a plenum defined by a space between the fuel cell stack and the housing major interior surface. The hexagonal fuel cell stack can be formed by a plurality of fuel cell groups shaped such that when aligned the fuel cell groups together constitute the hexagonal fuel cell stack.
    Type: Application
    Filed: February 13, 2015
    Publication date: June 25, 2015
    Inventors: David E. Leger, Matthew P. Paone, Greg J. Montie, Sean MacKinnon, Raoul Kingma
  • Publication number: 20090325019
    Abstract: A filtration device for a fuel cell system is provided. The filtration device includes a filter adapted to receive a reactant for a fuel cell. The filter includes a molecular sieve material adapted to separate a contaminant from the reactant supplied to the fuel cell. A membrane electrode assembly having the filter integrally formed therewith, and a fuel cell stack having the filter disposed adjacent at least one of the end plates of the fuel cell stack, are also provided.
    Type: Application
    Filed: June 25, 2008
    Publication date: December 31, 2009
    Inventors: Kelly O'Leary, Sean MacKinnon, Michael Budinski
  • Publication number: 20070154764
    Abstract: A water insoluble additive for improving the performance of an ion-exchange membrane, such as in the context of the high temperature operation of electrochemical fuel cells. The insoluble additive comprises a metal oxide cross-linked matrix having proton conducting groups covalently attached to the matrix through linkers. In one embodiment, the metal is silicon and the cross-linked matrix is a siloxane cross-linked matrix containing silicon atoms cross-linked by multiple disiloxy bonds and having proton conducting groups covalently attached to the silicon atoms through alkanediyl linkers.
    Type: Application
    Filed: December 20, 2006
    Publication date: July 5, 2007
    Inventors: Sean MacKinnon, Scott McDermid, Lukas Bonorand, Timothy Peckham, Keping Wang, Jing Li
  • Publication number: 20060141318
    Abstract: The invention provides a fuel cell metallic separator, wherein the metallic plate's edges include a resin portion comprising the communication ports. The resin portion around the communication ports is shaped so as to be capable of interlocking with a fuel cell stack component adjacently located in a fuel cell system. The invention also provides a resin portion capable of press fitting or thermal bonding with adjacent a fuel cell stack components.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 29, 2006
    Inventors: Sean MacKinnon, Lynn Erickson, Ayesha Rashid, Christopher Kirby
  • Publication number: 20060128557
    Abstract: Contamination of the ion-exchange membrane in an electrochemical fuel cell can significantly reduce its lifetime. One source of contamination is from sealant materials, more specifically volatile organic compounds (VOCs). Pursuant to the invention, an assembled membrane electrode assembly (MEA) is heated at a temperature of about 200° C. for about 2 hours. This removes a high percentage of VOCs present in the assembled MEA, more specifically present in the seals.
    Type: Application
    Filed: December 14, 2004
    Publication date: June 15, 2006
    Inventors: Sean MacKinnon, Warren Williams, Gregory James
  • Publication number: 20050165167
    Abstract: A process for preparing a graft copolymers is provided comprising exposing a polymeric base material to a dose of ionizing radiation, and then contacting the irradiated base material with a microemulsion comprising at least one fluorostyrenic monomer, water and water-miscible solvent. The graft copolymer may be formed into a membrane, including ion exchange membranes.
    Type: Application
    Filed: November 3, 2004
    Publication date: July 28, 2005
    Inventor: Sean MacKinnon
  • Publication number: 20050136308
    Abstract: A significant problem in PEM fuel cell durability is in premature failure of the ion-exchange membrane and in particular by the degradation of the ion-exchange membrane by reactive hydrogen peroxide species. Such degradation can be reduced or eliminated by the presence of an additive in the anode, cathode or ion-exchange membrane. The additive may be a radical scavenger, a membrane cross-linker, a hydrogen peroxide decomposition catalyst and/or a hydrogen peroxide stabilizer. The presence of the additive in the membrane electrode assembly (MEA) may however result in reduced performance of the PEM fuel cell. Accordingly, it may be desirable to restrict the location of the additive to locations of increased susceptibility to membrane degradation such as the inlet and/or outlet regions of the MEA.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 23, 2005
    Applicant: Ballard Power Systems Inc.
    Inventors: Neil Andrews, Shanna Knights, Kenneth Murray, Scott McDermid, Sean MacKinnon, Siyu Ye
  • Publication number: 20050136314
    Abstract: A membrane electrode assembly has two gas diffusion layers, two catalyst layers and an ion-exchange membrane interposed therebetween wherein the ion-exchange membrane is cast from a sulphonated polyether ketone/sulfone ionomer. Specifically, the ionomer can be represented as A-B-C wherein Further x, y, z represent the mole ratios of each moiety in the ionomer such that x is between 0.25 and 0.40; y is between 0.01 and 0.26; and z is between 0.40 and 0.67. Melt viscosity of the corresponding base polymer also affects performance in the fuel cell, particularly at values over 0.4 kNsm?2 as measured at 400° C., 1000 s?1. In preparing the membrane electrode assembly, the catalyst layers may be coated directly on the membrane and then bonded with two gas diffusion layers.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 23, 2005
    Applicant: Ballard Power Systems Inc.
    Inventors: Charles Stone, Cindy Mah, Paul Meharg, Sean MacKinnon, Scott McDermid, Stephen Hamada, Miho Hall
  • Publication number: 20050112439
    Abstract: A water insoluble additive for improving the performance of an ion-exchange membrane, such as in the context of the high temperature operation of electrochemical fuel cells. The insoluble additive comprises a metal oxide cross-linked matrix having phosphonic acid groups covalently attached to the matrix through linkers. In one embodiment, the metal is silicon and the cross-linked matrix is a siloxane cross-linked matrix containing silicon atoms cross-linked by multiple disiloxy bonds and having phosphonic acid groups covalently attached to the silicon atoms through alkanediyl linkers.
    Type: Application
    Filed: October 8, 2004
    Publication date: May 26, 2005
    Inventors: Sean MacKinnon, Timothy Peckham, Charles Stone
  • Publication number: 20050089746
    Abstract: Contamination of the ion-exchange membrane in an electrochemical fuel cell can significantly reduce the lifetime. One source of contamination is from sealant materials, particularly if the sealant is silicone and impregnated into the peripheral region of the membrane electrode assembly (MEA) and thus in close proximity to the ion-exchange membrane. Contamination may be reduced or eliminated by separating the electrochemical reaction and/or the ion-exchange membrane from the sealant material. In an embodiment, this is done by having the sealing region substantially free of active electrocatalyst particles (for example, selectively printing the catalyst to avoid the sealing region or poisoning catalyst in the sealing region). In another embodiment, a barrier film is interposed between the ion-exchange membrane and the sealant material impregnated into the MEA. In yet another embodiment, a barrier plug is impregnated into the fluid diffusion layer adjacent to the sealant material impregnated into the MEA.
    Type: Application
    Filed: October 23, 2003
    Publication date: April 28, 2005
    Applicant: Ballard Power Systems Inc.
    Inventors: Gregory James, Sean MacKinnon, Duarte Sousa, David Summers, Warren Williams, Julie Bellerive, Myles Bos, Robert Rempel, Simon Farrington, Scott McDermid