Patents by Inventor Cengiz S. Ozkan

Cengiz S. Ozkan 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: 12057575
    Abstract: A silicon and sulfur battery and methods are shown. In one example, the silicon and sulfur battery includes a lithium chip coupled to a silicon electrode. In some examples, the silicon electrode is formed from silicon nanoparticles and carbon.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: August 6, 2024
    Assignee: THE REGENTS OF THE UNIVERSITY OR CALIFORNIA
    Inventors: Cengiz S. Ozkan, Mihrimah Ozkan, Jeffrey Bell, Rachel Ye
  • Publication number: 20220263079
    Abstract: A silicon based micro-structured material and methods are shown. In one example, the silicon based micro-structured material includes a carbon coating. In one example, the silicon based micro-structured material is used as an electrode in a battery, such as a lithium ion battery.
    Type: Application
    Filed: April 28, 2022
    Publication date: August 18, 2022
    Inventors: Cengiz S. Ozkan, Mihrimah Ozkan, Wei Wang
  • Patent number: 11367869
    Abstract: Various embodiments provide glass bottle-based silicon electrode materials. A battery electrode includes silicon made from magnesiothermic reduction of silicon oxide derived from glass bottles and a conformal carbon coating thereon. A method of making the electrode material includes crushing glass bottles to produce crushed glass containing silicon oxide particles, mixing the silicon oxide particles with a heat scavenger to produce a mixture, magnesiothermically reducing the mixture to produce silicon, and applying a carbon coat to the silicon to produce an electrode material.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: June 21, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Cengiz S Ozkan, Mihrimah Ozkan, Chueh Liu, Changling Li, Wei Wang
  • Patent number: 11362335
    Abstract: A coated sulfur particle and methods are shown. In one example, the coated sulfur particles are used as an electrode in a battery, such as a lithium ion battery.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: June 14, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Brennan Campbell, Jeffrey Bell, Hamed Hosseini Bay, Zachary Favors, Cengiz S Ozkan, Mihrimah Ozkan
  • Patent number: 11349120
    Abstract: A silicon based micro-structured material and methods are shown. In one example, the silicon based micro-structured material includes a carbon coating. In one example, the silicon based micro-structured material is used as an electrode in a battery, such as a lithium ion battery.
    Type: Grant
    Filed: February 17, 2018
    Date of Patent: May 31, 2022
    Assignee: THE REGENTS OF TEE UNIVERSITY OF CALIFORNIA
    Inventors: Cengiz S. Ozkan, Mihrimah Ozkan, Wei Wang
  • Patent number: 11211598
    Abstract: A nanofiber based micro-structured material including metal fibers with metal oxide coatings and methods are shown. In one example, nanofiber based micro-structured material is used as an electrode in a battery, such as a lithium ion battery, where the nanofibers of micro-structured material form a nanofiber cloth with free-standing, core-shell structure.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: December 28, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Cengiz S. Ozkan, Mihrimah Ozkan, Jeffrey Bell, Rachel Ye
  • Patent number: 11056288
    Abstract: A metallic nanodendrite electrode and methods are shown. In one example, the metallic nanodendrite is coated with ruthenium oxide and is used as an electrode in a capacitor.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: July 6, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Cengiz S. Ozkan, Mihrimah Ozkan, Chueh Liu, Changling Li, Wei Wang
  • Patent number: 10964942
    Abstract: A nickel based micro-structured material and methods are shown. In one example, the nickel based micro-structured material is used as an electrode in a battery, such as a lithium ion battery. One specific example shown includes NiO-decorated Ni nanowires with diameters around 30-150 nm derived from Ni wire backbone (around 2 ?m in diameter). In one specific example, The NiO nanowire foam can be manufactured with bio-friendly chemicals and low temperature processes without an templates, binders and conductive additives, which possesses the potential transferring from lab scale to industrial production.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: March 30, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Cengiz S Ozkan, Mihrimah Ozkan
  • Patent number: 10818914
    Abstract: A carbonized mushroom tissue electrode material and methods are shown. In one example, carbonized mushroom tissue is used as an electrode in a battery, such as a lithium ion battery. A battery, comprising: a first electrode, including: carbonized tissue from a mushroom; a second electrode; and an electrolyte in contact with both the first electrode and the second electrode.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: October 27, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Brennan Campbell, Robert Ionescu, Cengiz S Ozkan, Mihrimah Ozkan
  • Publication number: 20200273633
    Abstract: A metallic nanodendrite electrode and methods are shown. In one example, the metallic nanodendrite is coated with ruthenium oxide and is used as an electrode in a capacitor.
    Type: Application
    Filed: December 15, 2016
    Publication date: August 27, 2020
    Inventors: Cengiz S. Ozkan, Mihrimah Ozkan, Chueh Liu, Changling Li, Wei Wang
  • Patent number: 10756330
    Abstract: A silicon based micro-structured material and methods are shown. In one example, the silicon based micro-structured material is used as an electrode in a battery, such as a lithium ion battery. A battery, comprising: a first electrode, including a number of porous silicon spheres; a second electrode; and an electrolyte in contact with both the first electrode and the second electrode.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: August 25, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Wei Wang, Cengiz S Ozkan, Mihrimah Ozkan
  • Publication number: 20200220152
    Abstract: A method of conditioning a lithium-sulfur battery is disclosed. A battery that is conditioned by the methods shown is also disclosed. Disclosed methods avoid excess polysulfide shuttling in the voltage plateau associated with the formation of long chain polysulfides, while targeting the lower voltage plateau, at a slower rate, associated with solid formation on the carbon matrix.
    Type: Application
    Filed: July 29, 2019
    Publication date: July 9, 2020
    Inventors: Cengiz S. Ozkan, Mihrimah Ozkan, Jeffrey Bell, Rachel Ye, Daisy Patino
  • Publication number: 20200161648
    Abstract: A silicon and sulfur battery and methods are shown. In one example, the silicon and sulfur battery includes a lithium chip coupled to a silicon electrode. In some examples, the silicon electrode is formed from silicon nanoparticles and carbon.
    Type: Application
    Filed: June 19, 2018
    Publication date: May 21, 2020
    Inventors: Cengiz S. Ozkan, Mihrimah Ozkan, Jeffrey Bell, Rachel Ye
  • Patent number: 10580591
    Abstract: A metal oxide anchored graphene and carbon nanotube hybrid foam can be formed via a two-step process. The method can include forming at least one graphene layer and a plurality of carbon nanotubes onto a surface of a porous metal substrate by chemical vapor deposition to form a coated porous metal substrate, and depositing a plurality of metal oxide nanostructures onto a surface of the coated porous metal substrate to form the metal oxide anchored graphene and carbon nanotube hybrid foam.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: March 3, 2020
    Assignee: THE REGENTS OF CALIFORNIA, RIVERSIDE
    Inventors: Wei Wang, Shirui Guo, Cengiz S Ozkan, Mihrimah Ozkan
  • Publication number: 20190379042
    Abstract: A silicon based micro-structured material and methods are shown. In one example, the silicon based micro-structured material includes a carbon coating. In one example, the silicon based micro-structured material is used as an electrode in a battery, such as a lithium ion battery.
    Type: Application
    Filed: February 17, 2018
    Publication date: December 12, 2019
    Inventors: Cengiz S. Ozkan, Mihrimah Ozkan, Wei Wang
  • Publication number: 20190326593
    Abstract: Various embodiments provide glass bottle-based silicon electrode materials. A battery electrode includes silicon made from magnesiothermic reduction of silicon oxide derived from glass bottles and a conformal carbon coating thereon. A method of making the electrode material includes crushing glass bottles to produce crushed glass containing silicon oxide particles, mixing the silicon oxide particles with a heat scavenger to produce a mixture, magnesiothermically reducing the mixture to produce silicon, and applying a carbon coat to the silicon to produce an electrode material.
    Type: Application
    Filed: April 18, 2019
    Publication date: October 24, 2019
    Inventors: Cengiz S Ozkan, Mihrimah Ozkan, Chueh Liu, Changling Li, Wei Wang
  • Publication number: 20190245204
    Abstract: A nickel based micro-structured material and methods are shown. In one example, the nickel based micro-structured material is used as an electrode in a battery, such as a lithium ion battery.
    Type: Application
    Filed: July 7, 2017
    Publication date: August 8, 2019
    Inventors: Cengiz S. Ozkan, Mihrimab Ozkan
  • Patent number: 10287677
    Abstract: Methods of fabricating a graphene film are disclosed. An example method can include providing a substrate, heating the substrate between about 600° C. and about 1100° C. in a chamber, and introducing a carbon source into the chamber at a temperature between about 600° C. and about 1100° C. for about 10 seconds to about 1 minute. The method can further include cooling the substrate to about room temperature to form the graphene film Methods of fabricating pillared graphene nano structures and graphene based devices are also provided.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: May 14, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Cengiz S. Ozkan, Mihrimah Ozkan, Ali B. Guvenc, Rajat K. Paul, Jian Lin, Maziar Ghazinejad, Miro Penchev, Shirui Guo, Jiebin Zhong
  • Patent number: 10263107
    Abstract: A strain gated transistor and associated methods are shown. In one example, a transistor channel region includes a metal dichalcogen layer that is stressed to improve electrical properties of the transistor.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: April 16, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Cengiz S Ozkan, Mihrimah Ozkan, Yu Chai
  • Patent number: 10211448
    Abstract: A hybrid nanostructured surface and methods are shown. In one example the hybrid nanostructured surface is used to form one or more electrodes of a battery. Devices such as lithium ion batteries are shown incorporating hybrid nanostructured surfaces.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: February 19, 2019
    Assignee: The Regents of the University of California
    Inventors: Cengiz S Ozkan, Mihrimah Ozkan, Wei Wang