Patents by Inventor Peter B. Hallac

Peter B. Hallac 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).

  • Cathode active material for overcharge protection in secondary lithium batteries
    Patent number: 9991566
    Abstract: Provided herein is an electrode active material comprising a lithium metal oxide and an overcharge protection additive having an operating voltage higher than the operating voltage of the lithium metal oxide.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: June 5, 2018
    Assignee: Johnson Controls Technology Company
    Inventors: Peter B. Hallac, Sung-Jin Cho, Frederic C. Bonhomme, Mohamed Taggougui, David R. Boone, Qingfang Shi, Alexandre Ndedi Ntepe
  • CATHODE ACTIVE MATERIAL FOR OVERCHARGE PROTECTION IN SECONDARY LITHIUM BATTERIES
    Publication number: 20160315355
    Abstract: A method of manufacturing a battery cathode includes forming a mixture having a lithium metal oxide and an overcharge protection additive, the overcharge protection additive having an operating voltage higher than an operating voltage of the lithium metal oxide. The lithium metal oxide is provided in an amount sufficient to provide a desired operating capacity for a lithium ion battery cell, and the overcharge protection additive has a higher operating voltage than the lithium metal oxide such that the overcharge protection additive can undergo reversible lithium removal during overcharging of the lithium ion battery cell. The method also includes contacting the mixture with a current collector.
    Type: Application
    Filed: July 5, 2016
    Publication date: October 27, 2016
    Inventors: Peter B. Hallac, Sung-Jin Cho, Frederic C. Bonhomme, Mohamed Taggougui, David R. Boone, Qingfang Shi, Alexandre Ndedi Ntepe
  • Electrolyte Formulation for High Voltage and Wide Temperature Lithium-Ion Cells
    Publication number: 20130337342
    Abstract: An electrochemical cell provided with a positive electrode, a negative electrode, and an electrolyte. The positive electrode comprises a stabilized lithium metal oxide material, the lithium metal oxide material comprising one or more transition metal ions. The electrolyte is prepared by mixing ingredients comprising a solvent, a lithium salt, and a sultone.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 19, 2013
    Inventors: Peter B. Hallac, Junwei Jiang, Christopher R. Fell