Patents by Inventor Michael Kruft

Michael Kruft 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: 10326133
    Abstract: The invention relates to a chemical compound of the formula NibM1cM2d(O)x(OH)y, wherein M1 denotes at least one element from the group consisting of Fe, Co, Mg, Zn, Cu and/or mixtures thereof, M2 denotes at least one element from the group consisting of Mn, Al, B, Ca, Cr and/or mixtures thereof, wherein b?0.8, c?0.5, d?0.5, and x is a number between 0.1 and 0.8, y is a number between 1.2 and 1.9, and x+y=2. A process for the preparation thereof, and the use thereof as a precursor for the preparation of cathode material for secondary lithium batteries are described.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: June 18, 2019
    Assignee: TODA KOGYO CORP.
    Inventors: Sven Albrecht, Michael Kruft, Stefan Malcus
  • Publication number: 20170033358
    Abstract: The invention relates to a chemical compound of the formula NibM1cM2d(O)x(OH)y, wherein M1 denotes at least one element from the group consisting of Fe, Co, Mg, Zn, Cu and/or mixtures thereof, M2 denotes at least one element from the group consisting of Mn, Al, B, Ca, Cr and/or mixtures thereof, wherein b?0.8, c?0.5, d?0.5, and x is a number between 0.1 and 0.8, y is a number between 1.2 and 1.9, and x+y=2. A process for the preparation thereof, and the use thereof as a precursor for the preparation of cathode material for secondary lithium batteries are described.
    Type: Application
    Filed: September 16, 2016
    Publication date: February 2, 2017
    Inventors: Sven ALBRECHT, Michael KRUFT, Stefan MALCUS
  • Publication number: 20120305861
    Abstract: The invention relates to a chemical compound of the formula NibM1cM2d(O)x(OH)y, wherein M1 denotes at least one element from the group consisting of Fe, Co, Mg, Zn, Cu and/or mixtures thereof, M2 denotes at least one element from the group consisting of Mn, Al, B, Ca, Cr and/or mixtures thereof, wherein b?0.8, c?0.5, d?0.5, and x is a number between 0.1 and 0.8, y is a number between 1.2 and 1.9, and x+y=2. A process for the preparation thereof, and the use thereof as a precursor for the preparation of cathode material for secondary lithium batteries are described.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 6, 2012
    Applicant: TODA KOGYO EUROPE GMBH
    Inventors: Sven ALBRECHT, Michael KRUFT, Stefan MALCUS
  • Publication number: 20110300470
    Abstract: The invention relates to a device and a method for the production of compounds by precipitation of solids from solutions, the physical and chemical properties of the solid particles formed on precipitation being flexible and can be independently fixable. Custom products can thus be produced with very high space-time yields and a particulate nickel/cobalt mixed hydroxide of formula NixCo1-x(OH)2, with a BET surface area of 20 m2/g and a tap density of greater than 2.4 g/cm3.
    Type: Application
    Filed: March 20, 2007
    Publication date: December 8, 2011
    Applicant: H.C. STARCK GMBH
    Inventors: Armin Olbrich, Juliane Meese-Marktscheffel, Matthias Jahn, Rüdiger Zertani, Gerd Maikowske, Sven Albrecht, Stefan Malcus, Josef Schmoll, Gabriele Christine Schmoll, Christian Peter Schmoll, Wolfgang Josef Schmoll, Volker Schmoll, Georg Wilhelm Schmoll, Michael Kruft
  • Patent number: 7998582
    Abstract: The present invention relates to a particulate mixed metal hydroxide that includes nickel, cobalt and aluminium. The powder particles have a core of nickel/cobalt hydroxide, and a surface that is coated with amorphous aluminium hydroxide. A process for the continuous preparation of such mixed metal hydroxides is also described. The process includes precipitating aluminium hydroxide in the presence of a nickel/cobalt mixed hydroxide in a tube reactor. The mixed metal hydroxides of the present invention may be used to prepare active materials for positive electrodes of a secondary battery.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: August 16, 2011
    Assignee: Toda Kogyo Europe GmbH
    Inventors: Sven Albrecht, Michael Kruft, Armin Olbrich, Stefan Malcus, Wolfgang Wiezoreck, Trevor McLeod, Shuja Siddiqui, Rob Rops, Hirofumi Hori
  • Publication number: 20100059707
    Abstract: The present invention relates to a particulate mixed metal hydroxide that includes nickel, cobalt and aluminium. The powder particles have a core of nickel/cobalt hydroxide, and a surface that is coated with amorphous aluminium hydroxide. A process for the continuous preparation of such mixed metal hydroxides is also described. The process includes precipitating aluminium hydroxide in the presence of a nickel/cobalt mixed hydroxide in a tube reactor. The mixed metal hydroxides of the present invention may be used to prepare active materials for positive electrodes of a secondary battery.
    Type: Application
    Filed: October 27, 2009
    Publication date: March 11, 2010
    Applicant: TODA KOGYO EUROPE GMBH
    Inventors: Sven Albrecht, Michael Kruft, Armin Olbrich, Stefan Malcus, Wolfgang Wiezoreck, Trevor Mcleod, Shuja Siddiqui, Rob Rops, Hirofumi Hori
  • Publication number: 20090302267
    Abstract: The invention relates to a chemical compound of the formula NibM1cM2d(O)x(OH)y, wherein M1 denotes at least one element from the group consisting of Fe, Co, Mg, Zn, Cu and/or mixtures thereof, M2 denotes at least one element from the group consisting of Mn, Al, B, Ca, Cr and/or mixtures thereof, wherein b?0.8, c?0.5, d?0.5, and x is a number between 0.1 and 0.8, y is a number between 1.2 and 1.9, and x+y=2. A process for the preparation thereof, and the use thereof as a precursor for the preparation of cathode material for secondary lithium batteries are described.
    Type: Application
    Filed: August 8, 2006
    Publication date: December 10, 2009
    Inventors: Sven Albrecht, Michael Kruft, Stefan Malcus
  • Patent number: 7622190
    Abstract: The present invention relates to a particulate mixed metal hydroxide that includes nickel, cobalt and aluminium. The powder particles have a core of nickel/cobalt hydroxide, and a surface that is coated with amorphous aluminium hydroxide. A process for the continuous preparation of such mixed metal hydroxides is also described. The process includes precipitating aluminium hydroxide in the presence of a nickel/cobalt mixed hydroxide in a tube reactor. The mixed metal hydroxides of the present invention may be used to prepare active materials for positive electrodes of a secondary battery.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: November 24, 2009
    Assignee: Toda Kogyo Europe GmbH
    Inventors: Sven Albrecht, Michael Kruft, Armin Olbrich, Stefan Malcus, Wolfgang Wiezoreck, Trevor McLeod, Shuja Siddiqui, Rob Rops, Hirofumi Hori
  • Patent number: 7048843
    Abstract: The invention relates to a method for producing metal hydroxides or alkaline metal carbonates by anode dissolution of the corresponding metals and precipitation of the hydroxides or alkaline carbonates in an aqueous medium. The anode dissolution of the metal components is carried out in the anode compartment of a three-compartment electrolytic cell. An aqueous auxiliary salt solution is fed to an intermediate compartment that is disposed between the anode compartment and the cathode compartment and that is separated therefrom by a porous membrane. An at least not alkaline metal salt solution is continuously taken from the anode compartment while an alkaline auxiliary salt solution is continuously taken from the cathode compartment. The at least not alkaline metal salt solution and the alkaline auxiliary salt solution are combined outside the electrolytic cell for the purpose of precipitating metal hydroxides or alkaline metal carbonates.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: May 23, 2006
    Assignee: H.C. Starck GmbH
    Inventors: Armin Olbrich, Astrid Görge, Frank Schrumpf, Juliane Meese-Marktscheffel, Viktor Stoller, Gerhard Gille, Josef Schmoll, Michael Kruft, Dirk Naumann
  • Publication number: 20060089257
    Abstract: The present invention relates to a particulate mixed metal hydroxide that includes nickel, cobalt and aluminium. The powder particles have a core of nickel/cobalt hydroxide, and a surface that is coated with amorphous aluminium hydroxide. A process for the continuous preparation of such mixed metal hydroxides is also described. The process includes precipitating aluminium hydroxide in the presence of a nickel/cobalt mixed hydroxide in a tube reactor. The mixed metal hydroxides of the present invention may be used to prepare active materials for positive electrodes of a secondary battery.
    Type: Application
    Filed: September 12, 2005
    Publication date: April 27, 2006
    Inventors: Sven Albrecht, Michael Kruft, Armin Olbrich, Stefan Malcus, Wolfgang Wiezoreck, Trevor McLeod, Shuja Siddiqui, Rob Rops, Hirofumi Hori
  • Publication number: 20030141199
    Abstract: The invention relates to a method for producing metal hydroxides or alkaline metal carbonates by anode dissolution of the corresponding metals and precipitation of the hydroxides or alkaline carbonates in an aqueous medium. The anode dissolution of the metal components is carried out in the anode compartment of a three-compartment electrolytic cell. An aqueous auxiliary salt solution is fed to an intermediate compartment that is disposed between the anode compartment and the cathode compartment and that is separated therefrom by a porous membrane. An at least not alkaline metal salt solution is continuously taken from the anode compartment while an alkaline auxiliary salt solution is continuously taken from the cathode compartment. The at least not alkaline metal salt solution and the alkaline auxiliary salt solution are combined outside the electrolytic cell for the purpose of precipitating metal hydroxides or alkaline metal carbonates.
    Type: Application
    Filed: December 13, 2002
    Publication date: July 31, 2003
    Inventors: Armin Olbrich, Astrid Grge, Frank Schrumpf, Juliane Meese-Marktscheffel, Viktor Stoller, Gerhard Gille, Josef Schmoll, Michael Kruft, Dirk Naumann