Patents by Inventor Nancy J. Dudney
Nancy J. Dudney 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).
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Patent number: 11807543Abstract: A solid ionically conductive composition (e.g., nanoparticles of less than 1 micron or a continuous film) comprising at least one element selected from alkali metal, alkaline earth metal, aluminum, zinc, copper, and silver in combination with at least two elements selected from oxygen, sulfur, silicon, phosphorus, nitrogen, boron, gallium, indium, tin, germanium, arsenic, antimony, bismuth, transition metals, and lanthanides. Also described is a battery comprising an anode, a cathode, and a solid electrolyte (corresponding to the above ionically conductive composition) in contact with or as part of the anode and/or cathode. Further described is a thermal (e.g., plasma-based) method of producing the ionically conductive composition. Further described is a method for using an additive manufacturing (AM) process to produce an object constructed of the ionically conductive composition by use of particles of the ionically conductive composition as a feed material in the AM process.Type: GrantFiled: July 31, 2020Date of Patent: November 7, 2023Assignee: UT-Battelle, LLCInventors: Andrew K. Kercher, Andrew S. Westover, Michael Naguib Abdelmalak, Nancy J. Dudney
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Publication number: 20220263130Abstract: An improved gel composite electrolyte membrane and a method of its manufacture are provided. The method includes mixing polymer precursors, a lithium salt, and a ceramic filler in a vessel to form a mixture. The mixture is cast on a preheated substrate and cured to form a crosslinked composite electrolyte membrane. The composite electrolyte membrane is plasticized by immersing the composite electrolyte in a plasticizer to obtain a gel composite electrolyte membrane. The addition of a plasticizer and a ceramic filler synergistically and simultaneously act to improve the Li+ transference number and Li+ conductivity of the resulting composite electrolyte, exhibiting high ionic conductivity and mechanical stability as well improved cycling performance. The gel composite electrolyte membrane is particularly suitable for, but not limited to, lithium metal batteries.Type: ApplicationFiled: February 18, 2022Publication date: August 18, 2022Inventors: Xi CHEN, Yiman ZHANG, Tomonori SAITO, Nancy J. DUDNEY, Michelle LEHMANN
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Publication number: 20220115693Abstract: A method for manufacturing an improved thin film composite solid electrolyte is provided. The method includes spray coating an aqueous suspension of ceramic particles onto a substrate to form a ceramic thin film. The film is sintered to form a porous ceramic structure having an interconnected necked morphology that defines cavities. The cavities are backfilled with an polymer electrolyte, for example a crosslinkable poly(ethylene oxide) (PEO)-based polymer electrolyte. The resulting thin film composite solid electrolyte is highly ionically conductive and mechanically robust with good manufacturability, particularly suitable for, but not limited to lithium metal batteries. The present method represents a departure from conventional mixing-then-casting methods and instead includes the fabrication of a solid electrolyte having a high ceramic volume fraction, high ionic conductivity, low thickness, and good chemical stability with metallic lithium.Type: ApplicationFiled: October 8, 2021Publication date: April 14, 2022Inventors: Xi Chen, Nancy J. Dudney, Sergiy Kalnaus, Max J. Palmer, Andrew S. Westover
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Patent number: 11050049Abstract: An electrode material includes a lithium active material composition. The lithium active material composition includes lithium and an active anode material. The lithium active material composition is coated with a lithium ion conducting passivating material, such that the electrode material is lithiated and pre-passivated. An electrode and a battery are also disclosed. Methods of making an electrode material, electrode and battery that are lithiated and pre-passivated are also disclosed.Type: GrantFiled: February 13, 2019Date of Patent: June 29, 2021Assignee: UT-BATTELLE, LLCInventors: Robert L. Sacci, Nancy J. Dudney, Lance W. Gill, Edward W. Hagaman, Gabriel M. Veith
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Patent number: 10930969Abstract: 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: GrantFiled: January 22, 2019Date of Patent: February 23, 2021Assignee: UT-BATTELLE, LLCInventors: Jagjit Nanda, Nancy J. Dudney, Chaitanya Kumar Narula, Sreekanth Pannala, Raymond Robert Unocic, Surendra Kumar Martha
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Publication number: 20210032117Abstract: A solid ionically conductive composition (e.g., nanoparticles of less than 1 micron or a continuous film) comprising at least one element selected from alkali metal, alkaline earth metal, aluminum, zinc, copper, and silver in combination with at least two elements selected from oxygen, sulfur, silicon, phosphorus, nitrogen, boron, gallium, indium, tin, germanium, arsenic, antimony, bismuth, transition metals, and lanthanides. Also described is a battery comprising an anode, a cathode, and a solid electrolyte (corresponding to the above ionically conductive composition) in contact with or as part of the anode and/or cathode. Further described is a thermal (e.g., plasma-based) method of producing the ionically conductive composition. Further described is a method for using an additive manufacturing (AM) process to produce an object constructed of the ionically conductive composition by use of particles of the ionically conductive composition as a feed material in the AM process.Type: ApplicationFiled: July 31, 2020Publication date: February 4, 2021Inventors: Andrew K. Kercher, Andrew S. Westover, Michael Naguib Abdelmalak, Nancy J. Dudney
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Patent number: 10424792Abstract: 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: GrantFiled: January 26, 2017Date of Patent: September 24, 2019Assignee: UT-Battelle LLCInventors: Nancy J. Dudney, Chengdu Liang, Jagjit Nanda, Gabriel M. Veith, Yoongu Kim, Surendra Kumar Martha
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Patent number: 10374234Abstract: A battery electrode assembly includes a current collector with conduction barrier regions having a conductive state in which electrical conductivity through the conduction barrier region is permitted, and a safety state in which electrical conductivity through the conduction barrier regions is reduced. The conduction barrier regions change from the conductive state to the safety state when the current collector receives a short-threatening event. An electrode material can be connected to the current collector. The conduction barrier regions can define electrical isolation subregions. A battery is also disclosed, and methods for making the electrode assembly, methods for making a battery, and methods for operating a battery.Type: GrantFiled: November 10, 2017Date of Patent: August 6, 2019Assignee: UT-BATTELLE LLCInventors: Michael Naguib Abdelmalak, Srikanth Allu, Nancy J. Dudney, Jianlin Li, Srdjan Simunovic, Hsin Wang
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Publication number: 20190198858Abstract: An electrode material includes a lithium active material composition. The lithium active material composition includes lithium and an active anode material. The lithium active material composition is coated with a lithium ion conducting passivating material, such that the electrode material is lithiated and pre-passivated. An electrode and a battery are also disclosed. Methods of making an electrode material, electrode and battery that are lithiated and pre-passivated are also disclosed.Type: ApplicationFiled: February 13, 2019Publication date: June 27, 2019Inventors: Nancy J. DUDNEY, Edward W. HAGAMAN, Gabriel M. VEITH, Lance W. GILL, Robert L. SACCI
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Patent number: 10326164Abstract: A solid electrolyte for a lithium battery includes Li3+xGexAs1-xS4 where x=0 to 0.50. The value of x can be a range of any high value and any lower value from 0 to 0.50. For example, x can be 0.25 to 0.50, and x can be 0.3 to 0.4, among many other possible ranges. In one embodiment x=0.33 such that the solid electrolyte is Li3.334Ge0.334As0.666S4. A solid electrolyte for a lithium battery can include LiAsS4 wherein ½ to ? of the As is substituted with Ge. A lithium battery and a method for making a lithium battery are also disclosed.Type: GrantFiled: March 3, 2016Date of Patent: June 18, 2019Assignee: UT-BATTELLE, LLCInventors: Chengdu Liang, Nancy J. Dudney, Ezhiylmurugan Rangasamy, Gayatri Sahu
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Publication number: 20190157712Abstract: 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: ApplicationFiled: January 22, 2019Publication date: May 23, 2019Inventors: Jagjit NANDA, Nancy J. DUDNEY, Chaitanya Kumar NARULA, Sreekanth PANNALA, Raymond Robert UNOCIC, Surendra Kumar MARTHA
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Patent number: 10263246Abstract: An electrode material includes a lithium active material composition. The lithium active material composition includes lithium and an active anode material. The lithium active material composition is coated with a lithium ion conducting passivating material, such that the electrode material is lithiated and pre-passivated. An electrode and a battery are also disclosed. Methods of making an electrode material, electrode and battery that are lithiated and pre-passivated are also disclosed.Type: GrantFiled: November 20, 2015Date of Patent: April 16, 2019Assignee: UT-BATTELLE, LLCInventors: Nancy J. Dudney, Edward W. Hagaman, Gabriel M. Veith, Lance W. Gill, Robert L. Sacci
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Patent number: 10224565Abstract: 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: GrantFiled: October 12, 2012Date of Patent: March 5, 2019Assignee: UT-BATTELLE, LLCInventors: Jagjit Nanda, Nancy J. Dudney, Chaitanya Kumar Narula, Sreekanth Pannala, Raymond Robert Unocic, Surendra Kumar Martha
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Patent number: 10199633Abstract: An electrode and a related method of manufacture are provided. The electrode includes a self-aligning active material having short fiber powders with a cylindrical morphology to increase the packing density from 0.74 to nearly 0.91. The short fiber powders self-align during a slurring coating process as a result of shear forces between a die and a foil. The resulting coating includes parallel short fibers in a closed packed arrangement, providing an increased volumetric capacity of at least approximately 17%.Type: GrantFiled: December 9, 2015Date of Patent: February 5, 2019Assignee: UT-Battelle, LLCInventors: Orlando Rios, Claus Daniel, Nancy J. Dudney, Wyatt E. Tenhaeff
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Patent number: 10170750Abstract: A lithium sulfur cell has a cathode including Li3PS4+n (0<n<9), an electrolyte, and an anode comprising lithium. A cathode for a lithium sulfur cell is also disclosed.Type: GrantFiled: September 13, 2016Date of Patent: January 1, 2019Assignee: UT-BATTELLE, LLCInventors: Chengdu Liang, Nancy J. Dudney, Zhan Lin, Zengcai Liu
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Publication number: 20180069244Abstract: A battery electrode assembly includes a current collector with conduction barrier regions having a conductive state in which electrical conductivity through the conduction barrier region is permitted, and a safety state in which electrical conductivity through the conduction barrier regions is reduced. The conduction barrier regions change from the conductive state to the safety state when the current collector receives a short-threatening event. An electrode material can be connected to the current collector. The conduction barrier regions can define electrical isolation subregions. A battery is also disclosed, and methods for making the electrode assembly, methods for making a battery, and methods for operating a battery.Type: ApplicationFiled: November 10, 2017Publication date: March 8, 2018Inventors: Michael Naguib Abdelmalak, Srikanth Allu, Nancy J. Dudney, Jianlin Li, Srdjan Simunovic, Hsin Wang
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Patent number: 9847531Abstract: A battery electrode assembly includes a current collector with conduction barrier regions having a conductive state in which electrical conductivity through the conduction barrier region is permitted, and a safety state in which electrical conductivity through the conduction barrier regions is reduced. The conduction barrier regions change from the conductive state to the safety state when the current collector receives a short-threatening event. An electrode material can be connected to the current collector. The conduction barrier regions can define electrical isolation subregions. A battery is also disclosed, and methods for making the electrode assembly, methods for making a battery, and methods for operating a battery.Type: GrantFiled: December 1, 2015Date of Patent: December 19, 2017Assignee: UT-BATTELLE, LLCInventors: Michael Naguib Abdelmalak, Srikanth Allu, Nancy J. Dudney, Jianlin Li, Srdjan Simunovic, Hsin Wang
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Patent number: 9837665Abstract: 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: GrantFiled: January 26, 2017Date of Patent: December 5, 2017Assignee: UT-BATTELLE, LLCInventors: Nancy J. Dudney, Chengdu Liang, Jagjit Nanda, Gabriel M. Veith, Yoongu Kim, Surendra Kumar Martha
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Patent number: 9722245Abstract: The invention is directed in a first aspect to a sulfur-carbon composite material comprising: (i) a bimodal porous carbon component containing therein a first mode of pores which are mesopores, and a second mode of pores which are micropores; and (ii) elemental sulfur contained in at least a portion of said micropores. The invention is also directed to the aforesaid sulfur-carbon composite as a layer on a current collector material; a lithium ion battery containing the sulfur-carbon composite in a cathode therein; as well as a method for preparing the sulfur-composite material.Type: GrantFiled: April 15, 2015Date of Patent: August 1, 2017Assignee: UT-Battelle, LLCInventors: Chengdu Liang, Nancy J. Dudney, Jane Y. Howe
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Publication number: 20170200952Abstract: 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: ApplicationFiled: January 26, 2017Publication date: July 13, 2017Inventors: Nancy J. Dudney, Chengdu Liang, Jagjit Nanda, Gabriel M. Veith, Yoongu Kim, Surendra Kumar Martha