Patents by Inventor Vishwanathan Ramar

Vishwanathan Ramar 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).

  • RECHARGEABLE BATTERY CELL WITH ACTIVE ELECTRODE DEPOLARIZER
    Publication number: 20200280092
    Abstract: Rechargeable battery cells are provided in which electrolyte comprises SO2 and a conductive salt, wherein upon discharge a reaction product is produced at the positive electrode. The rechargeable battery cells can comprise carbon and a conducting element having a three-dimensional porous metal structure, and can include optional components such as a metal oxide that catalyzes at least one reduction reaction at the cathode upon discharge and/or a metal halide. Methods of making and using such rechargeable battery cells are provided.
    Type: Application
    Filed: January 10, 2020
    Publication date: September 3, 2020
    Inventors: Christian Pszolla, Vishwanathan Ramar, Laurent Zinck, Markus Bork
  • APPROACH FOR MANUFACTURING EFFICIENT MESOPOROUS NANO-COMPOSITE POSITIVE ELECTRODE LiMn1-XFeXPO4 MATERIALS
    Publication number: 20160308212
    Abstract: A mesoporous nano-composite LiMn1-xFexPO4 (0?x?1) particle that has a uniform carbon coating on the surface of the particle. Also disclosed is a mesoporous nano-composite LiMn1-xFexPO4particle prepared by a process including steps: (i) providing a mixture of a soft-template compound, a lithium ion-containing compound, an iron ion-containing compound, a manganese ion-containing compound, and a phosphate ion-containing compound in a solvent; (2) removing the solvent to obtain a LiMn1-xFexPO4 precursor; and (3) calcining the precursor followed by milling and annealing to obtain the LiMn1-xFexPO4particle.
    Type: Application
    Filed: June 30, 2016
    Publication date: October 20, 2016
    Inventors: Palani Balaya, Vishwanathan Ramar
  • Approach for manufacturing efficient mesoporous nano-composite positive electrode LiMn1-xFexPO4 materials
    Patent number: 9385367
    Abstract: A process of preparing mesoporous nano-composite LiMn1-xFexPO4 (0?x?1, e.g., x=0, 0.2, 0.5 and 0.8) particles. The process contains the steps of providing a mixture of a soft-template compound, a lithium ion-containing compound, an iron ion-containing compound, a manganese ion-containing compound, and a phosphate ion-containing compound in a solvent, removing the solvent to obtain a LiMn1-xFexPO4 precursor, and calcining the precursor followed by milling and annealing. Also disclosed is a mesoporous nano-composite LiMn1-xFexPO4 particle prepared by this process.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: July 5, 2016
    Assignee: National University of Singapore
    Inventors: Palani Balaya, Vishwanathan Ramar
  • APPROACH FOR MANUFACTURING EFFICIENT MESOPOROUS NANO-COMPOSITE POSITIVE ELECTRODE LiMn1-xFexPO4 MATERIALS
    Publication number: 20140134490
    Abstract: A process of preparing mesoporous nano-composite LiMn1-xFexPO4 (0?x?1, e.g., x=0, 0.2, 0.5 and 0.8) particles. The process contains the steps of providing a mixture of a soft-template compound, a lithium ion-containing compound, an iron ion-containing compound, a manganese ion-containing compound, and a phosphate ion-containing compound in a solvent, removing the solvent to obtain a LiMn1-xFexPO4 precursor, and calcining the precursor followed by milling and annealing. Also disclosed is a mesoporous nano-composite LiMn1-xFexPO4 particle prepared by this process.
    Type: Application
    Filed: June 27, 2012
    Publication date: May 15, 2014
    Applicant: National University of Singapore
    Inventors: Palani Balaya, Vishwanathan Ramar