Patents by Inventor John William Halloran

John William Halloran 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).

  • Controlled porosity in electrodes
    Patent number: 10164242
    Abstract: Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm2), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: December 25, 2018
    Assignees: Massachusetts Institute of Technology, The Regents of the University of Michigan, The Regents of the University of California
    Inventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez
  • CONTROLLED POROSITY IN ELECTRODES
    Publication number: 20150364753
    Abstract: Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm2), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.
    Type: Application
    Filed: May 19, 2015
    Publication date: December 17, 2015
    Applicants: Massachusetts Institute of Technology, The Regents of the University of Michigan, The Regents of the University of California
    Inventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez
  • Controlled porosity in electrodes
    Patent number: 9065093
    Abstract: Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm2), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: June 23, 2015
    Assignees: Massachusetts Institute of Technology, The Regents of the University of California, The Regents of the University of Michigan
    Inventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez
  • CONTROLLED POROSITY IN ELECTRODES
    Publication number: 20120315538
    Abstract: Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm2), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.
    Type: Application
    Filed: April 9, 2012
    Publication date: December 13, 2012
    Applicants: Massachusetts Instituteof Technology, The Regents of the University of Michigan, Lawrence Berkeley Laboratory
    Inventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez