Patents by Inventor Larry J. Krause
Larry J. Krause 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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Publication number: 20190190060Abstract: An electrochemical cell includes a negative electrode that includes an active material including silicon. The electrochemical cell further includes a positive electrode that includes a first lithium metal oxide and a second lithium metal oxide. The first lithium metal oxide includes a material having (i) a nickel content of less than 30 mole %, based on the total moles of non-lithium metals in the first lithium metal oxide; and (ii) a D50 of greater than 2 micrometers. The second lithium metal oxide includes a material having (i) a nickel content of greater than 30 mole %, based on the total moles of non-lithium metals in the first lithium metal oxide; and (ii) a D50 of less than 2 micrometers. The second lithium metal oxide is provided in the positive electrode composition in an amount of less than 20 wt. %, based on the total weight of the first lithium metal oxide and second lithium metal oxide in the positive electrode composition.Type: ApplicationFiled: December 17, 2018Publication date: June 20, 2019Inventors: Vincent J.L. Chevrier, Larry J. Krause, Lowell D. Jensen
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Publication number: 20180212270Abstract: Lithium metal electrodes including a graphite-modified surface and the methods for making the electrodes are provided. Electrochemical device components include a lithium metal electrode having a first major surface, and a surface layer disposed on the first major surface of the lithium metal electrode. The surface layer has a composition including a compound of graphite and lithium. The surface layer is electrically conductive and lithium-ion conductive, and the surface layer is chemically compatible with the lithium metal on a first side in contact with the lithium metal electrode, and chemically compatible with electrolyte environments on a second side of the surface layer.Type: ApplicationFiled: July 21, 2016Publication date: July 26, 2018Inventors: Larry J. Krause, Lowell D. Jensen
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Patent number: 8420261Abstract: Thin film alloy electrodes are provided that are useful as negative electrodes in lithium-ion electrochemical cells. The alloys include aluminum and at least one additional electrochemically active metal or composite. They can be used as a current collector or as a complete electrode.Type: GrantFiled: June 8, 2010Date of Patent: April 16, 2013Assignee: 3M Innovative Properties CompanyInventors: Larry J. Krause, Lowell D. Jensen
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Patent number: 7972725Abstract: Irreversible first cycle capacity loss in lithium secondary cells having a cell electrode based on a powdered material and a binder may be significantly decreased or eliminated by using an aliphatic or cycloaliphatic polyimide binder. Compared to conventional polyimide binders prepared by reacting an aromatic dianhydride and a diamine, the disclosed polyimide binders have decreased aromatic carbonyl content, may be less likely to undergo electrochemical reduction, and may be less likely to consume electrons that might otherwise help lithiate the electrode.Type: GrantFiled: September 1, 2005Date of Patent: July 5, 2011Assignee: 3M Innovative Properties CompanyInventors: Larry J. Krause, Lowell D. Jensen
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Publication number: 20100310937Abstract: Thin film alloy electrodes are provided that are useful as negative electrodes in lithium-ion electrochemical cells. The alloys include aluminum and at least one additional electrochemically active metal or composite. They can be used as a current collector or as a complete electrode.Type: ApplicationFiled: June 8, 2010Publication date: December 9, 2010Inventors: Larry J. KRAUSE, Lowell D. Jensen
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Patent number: 7771861Abstract: The silicon as an anode material for use in lithium ion batteries according to the present invention provides a method for cell manufacturing. The degree to which the silicon is lithiated during cycling can be controlled, thereby lowering the volume expansion while maintaining an acceptable volumetric capacity, and reducing the failure rate of the silicon containing anodes in lithium ion batteries. The crystalline silicon anode is first charged so that the anode becomes partially lithiated. The voltage of the anode during this charging step is typically less than the lithiation potential of crystalline silicon at ambient temperatures, for example, less than 170 mV versus lithium metal. The total number of charge-discharge cycles during conditioning is at least two or more.Type: GrantFiled: October 2, 2006Date of Patent: August 10, 2010Assignee: 3M Innovative Properties CompanyInventors: Larry J. Krause, Mark N. Obrovac
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Publication number: 20080311464Abstract: The silicon as an anode material for use in lithium ion batteries according to the present invention provides a method for cell manufacturing. The degree to which the silicon is lithiated during cycling can be controlled, thereby lowering the volume expansion while maintaining an acceptable volumetric capacity, and reducing the failure rate of the silicon containing anodes in lithium ion batteries. The crystalline silicon anode is first charged so that the anode becomes partially lithiated. The voltage of the anode during this charging step is typically less than the lithiation potential of crystalline silicon at ambient temperatures, for example, less than 17 OmV versus lithium metal. The total number of charge-discharge cycles during conditioning is at least two or more.Type: ApplicationFiled: October 2, 2006Publication date: December 18, 2008Inventors: Larry J. Krause, Mark N. Obrovac
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Publication number: 20070269718Abstract: An electrode composition for a lithium ion battery comprises a binder, electrochemically active particles, metallic conductive diluent particles, and non-metallic conductive diluent particles. The electrochemically active particles and the metallic conductive diluent particles do not share a common phase boundary, and are present in a molar ratio less than or equal to 3. Methods of making the electrode composition and lithium ion batteries using the same are also disclosed.Type: ApplicationFiled: May 22, 2006Publication date: November 22, 2007Inventors: Larry J. Krause, Lowell D. Jensen
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Publication number: 20040131936Abstract: An electrode composition that includes an electrode material consisting essentially of at least one electrochemically inactive elemental metal and at least one electrochemically active elemental metal in the form of an amorphous mixture at ambient temperature. The mixture remains amorphous when the electrode composition is incorporated into a lithium battery and cycled through at least one full charge-discharge cycle at ambient temperature.Type: ApplicationFiled: July 30, 2003Publication date: July 8, 2004Applicant: 3M Innovative Properties Company, a Delaware corporationInventors: Robert L. Turner, Brian D. Fredericksen, Larry J. Krause, Jeffrey R. Dahn, Dominique C. Larcher, Ian A. Courtney, Ou Mao
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Patent number: 6699336Abstract: An electrode composition that includes an electrode material consisting essentially of at least one electrochemically inactive elemental metal and at least one electrochemically active elemental metal in the form of an amorphous mixture at ambient temperature. The mixture remains amorphous when the electrode composition is incorporated into a lithium battery and cycled through at least one full charge-discharge cycle at ambient temperature.Type: GrantFiled: December 29, 2000Date of Patent: March 2, 2004Assignee: 3M Innovative Properties CompanyInventors: Robert L. Turner, Brian D. Fredericksen, Larry J. Krause, Jeffrey R. Dahn, Dominique C. Larcher, Ian A. Courtney, Ou Mao
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Patent number: 6664004Abstract: 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: GrantFiled: June 18, 2001Date of Patent: December 16, 2003Assignee: 3M Innovative Properties CompanyInventors: Larry J. Krause, James R. Landucci, Kevin W. Eberman
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Publication number: 20020162606Abstract: An electrode composition that includes an electrode material consisting essentially of at least one electrochemically inactive elemental metal and at least one electrochemically active elemental metal in the form of an amorphous mixture at ambient temperature. The mixture remains amorphous when the electrode composition is incorporated into a lithium battery and cycled through at least one full charge-discharge cycle at ambient temperature.Type: ApplicationFiled: December 29, 2000Publication date: November 7, 2002Inventors: Robert L. Turner, Brian D. Fredericksen, Larry J. Krause, Jeffrey R. Dahn, Dominique C. Larcher, Ian A. Courtney, Ou Mao
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Patent number: 6436578Abstract: An electrode composition that includes (a) an electrochemically active metal element which, prior to cycling, is in the form of an intermetallic compound or an elemental metal and (b) a non-electrochemically active metal element. The electrode compositions have high initial capacities that are retained even after repeated cycling. The electrode compositions also exhibit high coulombic efficiencies.Type: GrantFiled: December 15, 2000Date of Patent: August 20, 2002Assignee: 3M Innovative Properties CompanyInventors: Robert L. Turner, Donald J. McClure, Larry J. Krause, Mary M. Buckett, Jeffery R. Dahn, Ou Mao
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Publication number: 20020031708Abstract: 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: ApplicationFiled: June 18, 2001Publication date: March 14, 2002Inventors: Larry J. Krause, James R. Landucci, Kevin W. Eberman
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Publication number: 20010033973Abstract: 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: ApplicationFiled: December 29, 2000Publication date: October 25, 2001Inventors: Larry J. Krause, Kevin W. Eberman
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Publication number: 20010008728Abstract: An electrode composition that includes (a) an electrochemically active metal element which, prior to cycling, is in the form of an intermetallic compound or an elemental metal and (b) a non-electrochemically active metal element. The electrode compositions have high initial capacities that are retained even after repeated cycling. The electrode compositions also exhibit high coulombic efficiencies.Type: ApplicationFiled: December 15, 2000Publication date: July 19, 2001Inventors: Robert L. Turner, Donald J. McClure, Larry J. Krause, Mary M. Buckett, Jeffery R. Dahn, Ou Mao
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Patent number: 6203944Abstract: An electrode for a lithium battery that includes (a) an electrochemically active metal element which, prior to cycling, is in the form of an intermetallic compound or an elemental metal and (b) a non-electrochemically active metal element. The electrode have high initial capacities that are retained even after repeated cycling. The electrode also exhibit high coulombic efficiencies.Type: GrantFiled: March 26, 1998Date of Patent: March 20, 2001Assignee: 3M Innovative Properties CompanyInventors: Robert L. Turner, Donald J. McClure, Larry J. Krause, Mary M. Buckett, Jeffery R. Dahn, Ou Mao
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Patent number: 5691081Abstract: A high performance battery containing an aluminum current collector is described which includes a noncorrosive salt disposed in a matrix, said salt being a bis(perfluoroalkylsulfonyl)imide having a total of at least 3 carbon atoms or a cyclic(perfluoroalkylenedisulfonyl)-imide.Type: GrantFiled: May 29, 1996Date of Patent: November 25, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Larry J. Krause, John W. Summerfield
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Patent number: 5652072Abstract: A high performance battery containing an aluminum current collector is described which includes a noncorrosive salt disposed in a matrix, said salt being a bis(perfluoroalkylsulfonyl)imide having a total of at least 3 carbon atoms or a cyclic(perfluoroalkylenedisulfonyl)-imide.Type: GrantFiled: September 21, 1995Date of Patent: July 29, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: William M. Lamanna, Larry J. Krause
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Patent number: 5514493Abstract: An electrolyte composition that includes a salt disposed in a matrix in which the salt has a formula selected from the group consisting of ##STR1## in which X.sup.- is --O.sup.-, --N.sup.- SO.sub.2 R.sub.f.sup.3, or ##STR2## Z is --CF.sub.2 --, --O--, --NR.sub.f.sup.8 --, or --SF.sub.4 --; R.sub.f.sup.1 and R.sub.f.sup.2, independently, are --CF.sub.3, --C.sub.m F.sub.2m+1, or --(CF.sub.2).sub.q --SO.sub.2 --X.sup.- M.sup.+ ; R.sub.f.sup.3, R.sub.f.sup.4, and R.sub.f.sup.5, independently, are --CF.sub.3, --C.sub.mf.sub.2m+1, --(CF.sub.2).sub.q --X.sup.- M.sup.+, ##STR3## R.sub.f.sup.8 is --CF.sub.3, --C.sub.m F.sub.2m+1, or --(CF.sub.2).sub.q --SO.sub.2 --X.sup.- M.sup.+ ; R.sub.f.sup.6 and R.sub.f.sup.7, independently, are perfluoroalkylene moieties having the formula --C.sub.r F.sub.2r ; n is 1-4; r is 1-4; m is 1-12; q is 1-4; and M.sup.+ is a counterion.Type: GrantFiled: March 6, 1995Date of Patent: May 7, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Jennifer E. Waddell, William M. Lamanna, Larry J. Krause, George G. I. Moore, Steven J. Hamrock