Patents by Inventor Kevin W. Eberman

Kevin W. Eberman 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: 20170229707
    Abstract: A cathode composition includes a lithium transition metal oxide having the formula Lip?qNixMnyCozO2, where ? represents assumed vacancy content, p+q+x+y+z=2, 0.05<q<0.15, 0.8<p<1.02, 0.05<x<0.45, 0.05<y<0.6, 0.05<z<0.6, and 0.14<p*x<0.34. The lithium transition metal oxide has an O3 type structure.
    Type: Application
    Filed: August 5, 2015
    Publication date: August 10, 2017
    Inventors: Jeffrey R. Dahn, Ramesh Shunmugasundaram, Kevin W. Eberman, Zhonghua Lu
  • Patent number: 9601771
    Abstract: A lithium transition metal oxide composition. The composition has the formula Lia[LibNicMndCoe]O2, where a?0.9, b?0, c>0, d>0, e>0, b+c+d+e=1, 1.05?c/d?1.4, 0.05?e?0.30, 0.9?(a+b)/M?1.06, and M=c+d+e. The composition has an O3 type structure.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: March 21, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Zhonghua Lu, Kevin W Eberman
  • Publication number: 20160336596
    Abstract: A lithium transition metal oxide composition. The composition has the formula Lia[LibNicMndCoe]O2, where a?0.9, b?0, c>0, d>0, e>0, b+c+d+e=1, 1.05?c/d?1.4, 0.05?e?0.30, 0.9?(a+b)/M?1.06, and M=c+d+e. The composition has an O3 type structure.
    Type: Application
    Filed: July 29, 2016
    Publication date: November 17, 2016
    Inventors: Zhonghua Lu, Kevin W. Eberman
  • Publication number: 20160204469
    Abstract: An electrolyte solution for a lithium ion battery, the electrolyte solution includes water, a cyclic carbonate, and a lithium imide salt. In one embodiment of the present disclosure, an electrolyte solution for a lithium ion battery is provided, wherein the electrolyte solution includes: a lithium ion battery charge carrying medium; water; a cyclic carbonate; and a lithium imide salt; wherein the water is present in an amount of at least 100 parts per million (ppm) (or at least 200 ppm), based on the total weight of the electrolyte solution.
    Type: Application
    Filed: August 6, 2014
    Publication date: July 14, 2016
    Inventors: John C. Burns, Jeffrey R. Dahn, Kevin W. Eberman, Gaurav Jain, William M. Lamanna, Nupur Nikkan Sinha, Ang Xiao, Hui Ye
  • Publication number: 20160197341
    Abstract: A cathode composition is provided. The composition includes particles having the following formula Li[Lix(NiaMnbCoc)1-x]O2, where 0<x<0.3, 0<a<1, 0<b<1, 0<c<1, a+b+c=1, a/b?1. The composition further includes a coating composition having the formula LifCog[PO4]1-f-g (0?f<1, 0?g<1). The coating composition is disposed on an outer surface of the particles.
    Type: Application
    Filed: August 6, 2014
    Publication date: July 7, 2016
    Inventors: Zhonghua Lu, Kevin W. Eberman, Matthew J Triemert
  • Publication number: 20150243981
    Abstract: A lithium transition metal oxide composition. The composition has the formula Lia[LibNicMndCoe]O2, where a?0.9, b?0, c>0, d>0, e>0, b+c+d+e=1, 1.05?c/d?1.4, 0.05?e?0.30, 0.9?(a+b)/M?1.06, and M=c+d+e. The composition has an O3 type structure.
    Type: Application
    Filed: January 21, 2015
    Publication date: August 27, 2015
    Inventors: Zhonghua Lu, Kevin W. Eberman
  • Publication number: 20150180030
    Abstract: A lithium transition metal oxide composition. The composition has the formula Lia[LibNicMndCOe]02, where a?0.9, b?0, c>0, d>0, e>0, b+c+d+e=1, 1.05?c/d?1.4, 0.05?e?0.30, 0.9?(a+b)/M?1.06, and M=c+d+e. The composition has an 03 type structure.
    Type: Application
    Filed: July 16, 2013
    Publication date: June 25, 2015
    Applicant: 3M Innovative Properties Company
    Inventors: Zhonghua Lu, Kevin W Eberman
  • Publication number: 20150056521
    Abstract: An electrolyte solution for a lithium ion battery, wherein the electrolyte solution includes water.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 26, 2015
    Inventors: John C. Burns, Jeffrey R. Dahn, Kevin W. Eberman, Gaurav Jain, William M. Lamanna, Nupur N. Sinha, Ang Xiao, Hui Ye
  • Publication number: 20140302393
    Abstract: High capacity lithium-ion electrochemical cells are provided that include positive electrode comprising a layered lithium transition metal oxide having a first irreversible capacity and a negative electrode that includes an alloy anode material that also has a first irreversible capacity. The first irreversible capacity of the positive electrode is less than the first irreversible capacity of the negative electrode. The discharge voltage curve of the positive electrode covers at least 10% of its capacity at voltages below 3.5 V ea) vs. Li/Li+. The average discharge voltage of the positive electrode is above 3.75 V vs. Li/Li+ when the cell is discharged from about 4.6 V vs. Li/Li+ to about 2.5 V vs. Li/Li+ at a rate of C/10 or slower and when the electrochemical cell is discharged to a final discharge voltage of about 2.5 V vs. Li/Li+ or greater.
    Type: Application
    Filed: October 25, 2012
    Publication date: October 9, 2014
    Inventors: Leif Christensen, Kevin W. Eberman
  • Patent number: 8383269
    Abstract: A rechargeable lithium-ion battery includes a positive electrode having a first capacity and a negative electrode having a second capacity that is less than the first capacity such that the battery has a negative-limited design. The negative electrode includes a lithium titanate active material. A liquid electrolyte that includes a lithium salt dissolved in at least one non-aqueous solvent a porous polymeric separator are located between the positive electrode and negative electrode. The separator is configured to allow lithium ions to flow through the separator.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: February 26, 2013
    Assignee: Medtronic, Inc.
    Inventors: Erik R. Scott, Gaurav Jain, Kevin W. Eberman, Craig L. Schmidt
  • Publication number: 20110281148
    Abstract: A rechargeable lithium-ion battery includes a positive electrode having a first capacity and a negative electrode having a second capacity that is less than the first capacity such that the battery has a negative-limited design. The negative electrode includes a lithium titanate active material. A liquid electrolyte that includes a lithium salt dissolved in at least one non-aqueous solvent a porous polymeric separator are located between the positive electrode and negative electrode. The separator is configured to allow lithium ions to flow through the separator.
    Type: Application
    Filed: April 13, 2011
    Publication date: November 17, 2011
    Inventors: Erik R. Scott, Gaurav Jain, Kevin W. Eberman, Craig L. Schmidt
  • Patent number: 7927742
    Abstract: A rechargeable lithium-ion battery includes a positive electrode that includes a first current collector and a first active material. The battery also includes an electrolyte and a negative electrode that includes a second current collector and a second active material, where the second active material includes a lithium titanate material. The positive electrode has a first capacity and the negative electrode has a second capacity, the second capacity being less than the first capacity such that the rechargeable lithium-ion battery is negative-limited.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: April 19, 2011
    Assignee: Medtronic, Inc.
    Inventors: Erik R. Scott, Gaurav Jain, Kevin W. Eberman, Craig L. Schmidt
  • Publication number: 20100279155
    Abstract: A rechargeable lithium-ion battery includes a positive electrode and a negative electrode that includes a lithium titanate active material. A separator is provided between the positive electrode and the negative electrode. The battery also includes an electrolyte and an electrolyte additive comprising at least one boroxine ring.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Inventors: Erik R. Scott, Gaurav Jain, Kevin W. Eberman
  • Patent number: 7556655
    Abstract: A method of producing Liy[NixCo1?2xMnx]O2 wherein 0.025?x?0.5 and 0.9?y?1.3. The method includes mixing [NixCo1?2xMnx]OH2 with LiOH or Li2CO3 and one or both of alkali metal fluorides and boron compounds, preferably one or both of LiF and B2O3. The mixture is heated sufficiently to obtain a composition of Liy[NixCo1?2xMnx]O2 sufficiently dense for use in a lithium-ion battery cathode. Compositions so densified exhibit a minimum reversible volumetric energy characterized by the formula [1833-333x] measured in Wh/L.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: July 7, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey R. Dahn, Severine Jouanneau, Kevin W. Eberman
  • Patent number: 7488465
    Abstract: Single-phase lithium-transition metal oxide compounds containing cobalt, manganese and nickel can be prepared by wet milling cobalt-, manganese-, nickel- and lithium-containing oxides or oxide precursors to form a finely-divided slurry containing well-distributed cobalt, manganese, nickel and lithium, and heating the slurry to provide a lithium-transition metal oxide compound containing cobalt, manganese and nickel and having a substantially single-phase O3 crystal structure. Wet milling provides significantly shorter milling times than dry milling and appears to promote formation of single-phase lithium-transition metal oxide compounds. The time savings in the wet milling step more than offsets the time that may be required to dry the slurry during the heating step.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: February 10, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin W. Eberman, Jerome E. Scanlan, Chris J. Goodbrake
  • Publication number: 20090035662
    Abstract: A rechargeable lithium-ion battery includes a positive electrode that includes a first current collector and a first active material. The battery also includes an electrolyte and a negative electrode that includes a second current collector and a second active material, where the second active material includes a lithium titanate material. The positive electrode has a first capacity and the negative electrode has a second capacity, the second capacity being less than the first capacity such that the rechargeable lithium-ion battery is negative-limited.
    Type: Application
    Filed: September 29, 2008
    Publication date: February 5, 2009
    Inventors: Erik R. Scott, Gaurav Jain, Kevin W. Eberman, Craig L. Schmidt
  • Patent number: 7211237
    Abstract: Single-phase lithium-transition metal oxide compounds containing cobalt, manganese and nickel can be prepared by wet milling cobalt-, manganese-, nickel- and lithium-containing oxides or oxide precursors to form a finely-divided slurry containing well-distributed cobalt, manganese, nickel and lithium, and heating the slurry to provide a lithium-transition metal oxide compound containing cobalt, manganese and nickel and having a substantially single-phase O3 crystal structure. Wet milling provides significantly shorter milling times than dry milling and appears to promote formation of single-phase lithium-transition metal oxide compounds. The time savings in the wet milling step more than offsets the time that may be required to dry the slurry during the heating step.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: May 1, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin W. Eberman, Jerome E. Scanlan, Chris J. Goodbrake
  • Publication number: 20040179993
    Abstract: A method of producing Liy[NixCo1−2xMnx]O2 wherein 0.025≦x≦0.5 and 0.9≦y≦1.3. The method includes mixing [NixCo1−2xMnx]OH2 with LiOH or Li2CO3 and one or both of alkali metal fluorides and boron compounds, preferably one or both of LiF and B2O3. The mixture is heated sufficiently to obtain a composition of Liy[NixCo1−2xMnx]O2 sufficiently dense for use in a lithium-ion battery cathode. Compositions so densified exhibit a minimum reversible volumetric energy characterized by the formula [1833−333x] measured in Wh/L.
    Type: Application
    Filed: January 13, 2004
    Publication date: September 16, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Jeffrey R. Dahn, Severine Jouanneau, Kevin W. Eberman
  • Patent number: 6664004
    Abstract: An electrode composition that includes a plurality of composite particles and a plurality of electrically conductive diluent particles admixed with the composite particles. Each of the composite particles includes an electrochemically active metal particle and an electrically conductive layer partially covering the particle. In one aspect, the layer is present in an amount no greater than about 75 wt. % of the composite, while in another aspect the layer is present in an amount no greater than about 75 vol. % of the composite. Also featured are lithium ion batteries featuring electrodes made from these compositions.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: December 16, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Larry J. Krause, James R. Landucci, Kevin W. Eberman
  • Publication number: 20020031708
    Abstract: An electrode composition that includes a plurality of composite particles and a plurality of electrically conductive diluent particles admixed with the composite particles. Each of the composite particles includes an electrochemically active metal particle and an electrically conductive layer partially covering the particle. In one aspect, the layer is present in an amount no greater than about 75 wt. % of the composite, while in another aspect the layer is present in an amount no greater than about 75 vol. % of the composite. Also featured are lithium ion batteries featuring electrodes made from these compositions.
    Type: Application
    Filed: June 18, 2001
    Publication date: March 14, 2002
    Inventors: Larry J. Krause, James R. Landucci, Kevin W. Eberman