Patents by Inventor Arun Surendranath

Arun Surendranath 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: 11431016
    Abstract: A binder solution for an electrolyte matrix for use with molten carbonate fuel cells is provided. The binder solution includes a first polymer with a molecular weight of less than about 150,000 and a second binder with a molecular weight of greater than about 200,000. The binder solution produces an electrolyte matrix with improved flexibility, matrix particle packing density, strength, and pore structure.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: August 30, 2022
    Assignee: FuelCell Energy, Inc.
    Inventors: Arun Surendranath, Abdelkader Hilmi, Chao-Yi Yuh
  • Patent number: 11205795
    Abstract: A reinforced electrolyte matrix for a molten carbonate fuel cell includes a porous ceramic matrix, a molten carbonate salt provided in the porous ceramic matrix, and at least one reinforcing structure comprised of at least one of yttrium, zirconium, cerium or oxides thereof. The reinforcing structure does not react with the molten carbonate salt. The reinforced electrolyte matrix separates a porous anode and a porous cathode in the molten carbonate fuel cell.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: December 21, 2021
    Assignee: FuelCell Energy, Inc.
    Inventors: Arun Surendranath, Abdelkader Hilmi, Chao-Yi Yuh
  • Publication number: 20210269667
    Abstract: Cathodic electrocoating composition with improved edge protection and coating appearance are provided. An exemplary cathodic electrocoating composition includes an aqueous carrier, a film forming binder dispersed in the carrier and including an epoxy-amine adduct and a blocked polyisocyanate crosslinking agent; a pigment paste; a water-soluble cellulose ether; and a cationic microgel dispersion which is prepared by a process comprising dispersing in aqueous medium a mixture of a cationic polyepoxide-amine reaction product which contains amine groups selected from the group consisting of primary amine groups, secondary amine groups, and mixtures thereof and a polyepoxide crosslinking agent and heating the mixture to a temperature sufficient to crosslink the mixture to form the cationic microgel dispersion. The water-soluble cellulose ether may be hydroxyethyl cellulose.
    Type: Application
    Filed: February 24, 2021
    Publication date: September 2, 2021
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Harshit Gupta, Arun Surendranath, Hanxiang Zeng
  • Patent number: 10957918
    Abstract: A method of making an electrolyte matrix includes: preparing a slurry comprising a support material, a coarsening inhibitor, an electrolyte material, and a solvent; and drying the slurry to form an electrolyte matrix. The support material comprises lithium aluminate, the coarsening inhibitor comprises a material selected from the group consisting of MnO2, Mn2O3, TiO2, ZrO2, Fe2O3, LiFe2O3, and mixtures thereof, and the coarsening inhibitor has a particle size of about 0.005 ?m to about 0.5 ?m.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: March 23, 2021
    Assignee: FuelCell Energy, Inc.
    Inventors: Abdelkader Hilmi, Arun Surendranath, Chao-Yi Yuh, Mohammad Farooque
  • Publication number: 20200358111
    Abstract: A method of making an electrolyte matrix includes: preparing a slurry comprising a support material, a coarsening inhibitor, an electrolyte material, and a solvent; and drying the slurry to form an electrolyte matrix. The support material comprises lithium aluminate, the coarsening inhibitor comprises a material selected from the group consisting of MnO2, Mn2O3, TiO2, ZrO2, Fe2O3, LiFe2O3, and mixtures thereof, and the coarsening inhibitor has a particle size of about 0.005 ?m to about 0.5 ?m.
    Type: Application
    Filed: July 24, 2020
    Publication date: November 12, 2020
    Inventors: Abdelkader HILMI, Arun SURENDRANATH, Chao-Yi YUH, Mohammad FAROOQUE
  • Patent number: 10756358
    Abstract: An electrolyte matrix for use with molten carbonate fuel cells having an enhanced stability and lifetime is provided. The electrolyte matrix includes lithium aluminate as a support material and a coarsening inhibitor. The coarsening inhibitor may be in the form of discrete particles or a dopant present in the support material. The coarsening inhibitor may include MnO2, Mn2O3, TiO2, ZrO2, Fe2O3, LiFe2O3, or mixtures thereof. The coarsening inhibitor prevents the formation of large pores in the electrolyte matrix during operation of the fuel cell, increasing the performance and the service lifetime of the electrolyte matrix.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: August 25, 2020
    Assignee: FuelCell Energy, Inc.
    Inventors: Abdelkader Hilmi, Arun Surendranath, Chao-Yi Yuh, Mohammad Farooque
  • Patent number: 10199665
    Abstract: A composition for use in forming a fuel cell matrix includes a support material, an electrolyte material, and an additive material that includes a plurality of flakes having an average length in a range of 5 to 40 micrometers and an average thickness of less than 1 micrometer.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: February 5, 2019
    Assignee: FUELCELL ENERGY, INC.
    Inventors: Abdelkader Hilmi, Arun Surendranath, Chao-Yi Yuh, Mohammad Farooque
  • Patent number: 10109869
    Abstract: A fuel cell matrix for use in a molten carbonate fuel cell comprising a support material and an additive material formed into a porous body, and an electrolyte material disposed in pores of the porous body, wherein the additive material is in a shape of a flake and has an average thickness of less than 1 ?m.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: October 23, 2018
    Assignee: FUELCELL ENERGY, INC.
    Inventors: Abdelkader Hilmi, Arun Surendranath, Chao-Yi Yuh, Mohammad Farooque
  • Publication number: 20180301728
    Abstract: A binder solution for an electrolyte matrix for use with molten carbonate fuel cells is provided. The binder solution includes a first polymer with a molecular weight of less than about 150,000 and a second binder with a molecular weight of greater than about 200,000. The binder solution produces an electrolyte matrix with improved flexibility, matrix particle packing density, strength, and pore structure.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 18, 2018
    Inventors: Arun SURENDRANATH, Abdelkader HILMI, Chao-Yi YUH
  • Publication number: 20180145363
    Abstract: A reinforced electrolyte matrix for a molten carbonate fuel cell includes a porous ceramic matrix, a molten carbonate salt provided in the porous ceramic matrix, and at least one reinforcing structure comprised of at least one of yttrium, zirconium, cerium or oxides thereof. The reinforcing structure does not react with the molten carbonate salt. The reinforced electrolyte matrix separates a porous anode and a porous cathode in the molten carbonate fuel cell.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 24, 2018
    Inventors: Arun SURENDRANATH, Abdelkader HILMI, Chao-Yi YUH
  • Publication number: 20180131017
    Abstract: An electrolyte matrix for use with molten carbonate fuel cells having an enhanced stability and lifetime is provided. The electrolyte matrix includes lithium aluminate as a support material and a coarsening inhibitor. The coarsening inhibitor may be in the form of discrete particles or a dopant present in the support material. The coarsening inhibitor may include MnO2, Mn2O3, TiO2, ZrO2, Fe2O3, LiFe2O3, or mixtures thereof. The coarsening inhibitor prevents the formation of large pores in the electrolyte matrix during operation of the fuel cell, increasing the performance and the service lifetime of the electrolyte matrix.
    Type: Application
    Filed: November 4, 2016
    Publication date: May 10, 2018
    Inventors: Abdelkader HILMI, Arun SURENDRANATH, Chao-Yi YUH, Mohammad FAROOQUE
  • Publication number: 20170288238
    Abstract: A composition for use in forming a fuel cell matrix includes a support material, an electrolyte material, and an additive material that includes a plurality of flakes having an average length in a range of 5 to 40 micrometers and an average thickness of less than 1 micrometer.
    Type: Application
    Filed: June 20, 2017
    Publication date: October 5, 2017
    Inventors: Abdelkader HILMI, Arun SURENDRANATH, Chao-Yi YUH, Mohammad FAROOQUE
  • Publication number: 20160285114
    Abstract: A fuel cell matrix for use in a molten carbonate fuel cell comprising a support material and an additive material formed into a porous body, and an electrolyte material disposed in pores of the porous body, wherein the additive material is in a shape of a flake and has an average thickness of less than 1 ?m.
    Type: Application
    Filed: June 3, 2016
    Publication date: September 29, 2016
    Inventors: Abdelkader Hilmi, Arun Surendranath, Chao-Yi Yuh, Mohammad Farooque
  • Publication number: 20150214564
    Abstract: A fuel cell matrix for use in a molten carbonate fuel cell comprising a support material and an additive material formed into a porous body, and an electrolyte material disposed in pores of the porous body, wherein the additive material is in a shape of a flake and has an average thickness of less than 1 ?m.
    Type: Application
    Filed: January 27, 2014
    Publication date: July 30, 2015
    Applicant: FuelCell Energy, Inc.
    Inventors: Abdelkader Hilmi, Arun Surendranath, Chao-Yi Yuh, Mohammad Farooque