Patents by Inventor Surendra Kumar Martha

Surendra Kumar Martha 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: 10930969
    Abstract: A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of Li1+x(My MzII MwIII)O2 where x+y+z+w=1, and where M, MII and MIII are interchangeably manganese, nickel and cobalt, and LiM*2-xMx*IIO4, where M* and M*II are manganese and nickel, respectively, with x=0.5. A negative electrode comprises carbon fibers having bound thereto silicon nanoparticles, and a mesophase pitch derived carbon binder between the silicon nanoparticles and the carbon fibers. An electrolyte is interposed between the positive electrode and the negative electrode. Methods of making positive and negative electrodes are also disclosed.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: February 23, 2021
    Assignee: UT-BATTELLE, LLC
    Inventors: Jagjit Nanda, Nancy J. Dudney, Chaitanya Kumar Narula, Sreekanth Pannala, Raymond Robert Unocic, Surendra Kumar Martha
  • Patent number: 10424792
    Abstract: A lithium ion battery includes an anode and a cathode. The cathode includes a lithium, manganese, nickel, and oxygen containing compound. An electrolyte is disposed between the anode and the cathode. A protective layer is deposited between the cathode and the electrolyte. The protective layer includes pure lithium phosphorus oxynitride and variations that include metal dopants such as Fe, Ti, Ni, V, Cr, Cu, and Co. A method for making a cathode and a method for operating a battery are also disclosed.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: September 24, 2019
    Assignee: UT-Battelle LLC
    Inventors: Nancy J. Dudney, Chengdu Liang, Jagjit Nanda, Gabriel M. Veith, Yoongu Kim, Surendra Kumar Martha
  • Publication number: 20190157712
    Abstract: A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of Li1+x(My MzII MwIII)O2 where x+y+z=1, and xLi2MnO3(1?x)LiMO2, where x=0.2-0.7, and where M, MII and MIII are interchangeably manganese, nickel and cobalt, and LiM2-xMxIIO4, where M and MII are manganese and nickel, respectively, with x=0.5. A negative electrode comprises carbon fibers having bound thereto silicon nanoparticles, and a mesophase pitch derived carbon binder between the silicon nanoparticles and the carbon fibers. An electrolyte is interposed between the positive electrode and the negative electrode. Methods of making positive and negative electrodes are also disclosed.
    Type: Application
    Filed: January 22, 2019
    Publication date: May 23, 2019
    Inventors: Jagjit NANDA, Nancy J. DUDNEY, Chaitanya Kumar NARULA, Sreekanth PANNALA, Raymond Robert UNOCIC, Surendra Kumar MARTHA
  • Patent number: 10224565
    Abstract: A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of Li1+x(My MzII MwIII)O2 where x+y+z+w=1, and xLi2MnO3(1?x)LiMO2, where x=0.2-0.7, and where M, MII and MIII are interchangeably manganese, nickel and cobalt, and LiM2?xMxIIO4, where M and MII are manganese and nickel, respectively, with x=0.5. A negative electrode comprises carbon fibers having bound thereto silicon nanoparticles, and a mesophase pitch derived carbon binder between the silicon nanoparticles and the carbon fibers. An electrolyte is interposed between the positive electrode and the negative electrode. Methods of making positive and negative electrodes are also disclosed.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: March 5, 2019
    Assignee: UT-BATTELLE, LLC
    Inventors: Jagjit Nanda, Nancy J. Dudney, Chaitanya Kumar Narula, Sreekanth Pannala, Raymond Robert Unocic, Surendra Kumar Martha
  • Patent number: 9837665
    Abstract: A lithium ion battery includes an anode and a cathode. The cathode includes a lithium, manganese, nickel, and oxygen containing compound. An electrolyte is disposed between the anode and the cathode. A protective layer is deposited between the cathode and the electrolyte. The protective layer includes pure lithium phosphorus oxynitride and variations that include metal dopants such as Fe, Ti, Ni, V, Cr, Cu, and Co. A method for making a cathode and a method for operating a battery are also disclosed.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: December 5, 2017
    Assignee: UT-BATTELLE, LLC
    Inventors: Nancy J. Dudney, Chengdu Liang, Jagjit Nanda, Gabriel M. Veith, Yoongu Kim, Surendra Kumar Martha
  • Publication number: 20170200952
    Abstract: A lithium ion battery includes an anode and a cathode. The cathode includes a lithium, manganese, nickel, and oxygen containing compound. An electrolyte is disposed between the anode and the cathode. A protective layer is deposited between the cathode and the electrolyte. The protective layer includes pure lithium phosphorus oxynitride and variations that include metal dopants such as Fe, Ti, Ni, V, Cr, Cu, and Co. A method for making a cathode and a method for operating a battery are also disclosed.
    Type: Application
    Filed: January 26, 2017
    Publication date: July 13, 2017
    Inventors: Nancy J. Dudney, Chengdu Liang, Jagjit Nanda, Gabriel M. Veith, Yoongu Kim, Surendra Kumar Martha
  • Publication number: 20170133686
    Abstract: A lithium ion battery includes an anode and a cathode. The cathode includes a lithium, manganese, nickel, and oxygen containing compound. An electrolyte is disposed between the anode and the cathode. A protective layer is deposited between the cathode and the electrolyte. The protective layer includes pure lithium phosphorus oxynitride and variations that include metal dopants such as Fe, Ti, Ni, V, Cr, Cu, and Co. A method for making a cathode and a method for operating a battery are also disclosed.
    Type: Application
    Filed: January 26, 2017
    Publication date: May 11, 2017
    Inventors: Nancy J. Dudney, Chengdu Liang, Jagjit Nanda, Gabriel M. Veith, Yoongu Kim, Surendra Kumar Martha
  • Patent number: 9570748
    Abstract: A lithium ion battery includes an anode and a cathode. The cathode includes a lithium, manganese, nickel, and oxygen containing compound. An electrolyte is disposed between the anode and the cathode. A protective layer is deposited between the cathode and the electrolyte. The protective layer includes pure lithium phosphorus oxynitride and variations that include metal dopants such as Fe, Ti, Ni, V, Cr, Cu, and Co. A method for making a cathode and a method for operating a battery are also disclosed.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: February 14, 2017
    Assignee: UT-BATTELLE, LLC
    Inventors: Nancy J. Dudney, Chengdu Liang, Jagjit Nanda, Gabriel M. Veith, Yoongu Kim, Surendra Kumar Martha
  • Publication number: 20150099169
    Abstract: An electrode for a battery includes a plurality of electrochemically active conversion-based particles coated by multilayer graphene, a plurality of carbon fibers, and a carbonaceous binder. The carbonaceous binder binds the active particles coated with the multilayer graphene to the plurality of carbon fibers. A battery containing the electrode and a method of making an electrode and a battery containing the electrode are also disclosed.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 9, 2015
    Inventors: Nancy J. DUDNEY, Jagjit NANDA, Surendra Kumar MARTHA
  • Publication number: 20090269658
    Abstract: The present invention provides a method for manufacture of a grid structure for use in lead acid batteries using a substrate having low density and low melting point, the method comprising coating the substrate material with a first metal layer and a subsequent metal layer of lead/lead alloy and electrodepositing an electroconductive polymer to form a protective layer thereon.
    Type: Application
    Filed: December 31, 2004
    Publication date: October 29, 2009
    Inventors: Ashok K. Shukla, Surendra Kumar Martha, Bellie Hariprakash, Shaik Abdul Gaffoor, Dinesh Chandra Trivedi