Patents by Inventor Richard L. Wang

Richard L. Wang 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).

  • Redox shuttles for high voltage cathodes
    Patent number: 8101302
    Abstract: Overcharge protection is provided for rechargeable electrochemical lithium-ion cells. The electrolyte in the provided cells contains a cyclable redox shuttle molecule that can operate in cells with high voltage cathode materials.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: January 24, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: William M. Lamanna, Michael J. Bulinski, Jeffrey R. Dahn, Junwei Jiang, Lee Moshurchak, Phat T. Pham, Richard L. Wang
  • REDOX SHUTTLES FOR HIGH VOLTAGE CATHODES
    Publication number: 20090286162
    Abstract: Overcharge protection is provided for rechargeable electrochemical lithium-ion cells. The electrolyte in the provided cells contains a cyclable redox shuttle molecule that can operate in cells with high voltage cathode materials.
    Type: Application
    Filed: February 5, 2009
    Publication date: November 19, 2009
    Inventors: William M. LAMANNA, Michael J. Bulinski, Jeffrey R. Dahn, Junwei Jiang, Lee Moshurchak, Phat T. Pham, Richard L. Wang
  • Substituted phenothiazine redox shuttles for rechargeable lithium-ion cell
    Patent number: 7615312
    Abstract: A rechargeable lithium-ion cell contains a positive electrode, negative electrode, charge-carrying electrolyte containing charge carrying medium and lithium salt, and an N-substituted or C-substituted phenothiazine compound dissolved in or dissolvable in the electrolyte. The substituted phenothiazine compound has an oxidation potential above the positive electrode recharged potential and serves as a cyclable redox chemical shuttle providing cell overcharge protection.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: November 10, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey R. Dahn, Claudia Buhrmester, Richard L. Wang, William M. Lamanna
  • Rechargeable lithium-ion cell with triphenylamine redox shuttle
    Patent number: 7585590
    Abstract: Provided is a rechargeable lithium-ion cell that contains a positive electrode, a negative electrode, a charge-carrying electrolyte containing a charge carrying medium and a lithium salt, and a triphenylamine compound dissolved in or dissolvable in the electrolyte. The triphenylamine compound has an oxidation potential above the positive electrode recharged potential and serves as a cyclable redox chemical shuttle providing cell overcharge protection. Also provided are methods for manufacturing a rechargeable lithium-ion cell.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: September 8, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Richard L. Wang, Claudia Buhrmester, William M. Lamanna, Jeffrey R. Dahn, Lee Moshurchak
  • Rechargeable Lithium-Ion Cell with Triphenylamine Redox Shuttle
    Publication number: 20070196727
    Abstract: Provided is a rechargeable lithium-ion cell that contains a positive electrode, a negative electrode, a charge-carrying electrolyte containing a charge carrying medium and a lithium salt, and a triphenylamine compound dissolved in or dissolvable in the electrolyte. The triphenylamine compound has an oxidation potential above the positive electrode recharged potential and serves as a cyclable redox chemical shuttle providing cell overcharge protection. Also provided are methods for manufacturing a rechargeable lithium-ion cell.
    Type: Application
    Filed: February 5, 2007
    Publication date: August 23, 2007
    Inventors: Richard L. Wang, Claudia Buhrmester, William M. Lamanna, Jeffrey R. Dahn