Patents by Inventor Zonghai Chen

Zonghai Chen 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).

  • Publication number: 20190319299
    Abstract: A lithium ion battery includes a cathode having a voltage of greater than 4.1 V v. Li/Li+ and an aluminum or stainless steel current collector; an anode; a separator; and an electrolyte that includes a first salt that is a lithium sulfonylimide, a lithium sulfonate, or a mixture of any two or more thereof, and the first salt is present in the electrolyte from about 0.1 M to about 2 M; an aprotic solvent; and a second salt which suppresses corrosion of the aluminum or stainless steel current collector.
    Type: Application
    Filed: April 17, 2018
    Publication date: October 17, 2019
    Inventors: Khalil Amine, Chi Cheung Su, Meinan He, Zonghai Chen
  • Patent number: 10325730
    Abstract: A cathode active material includes NaxMO2 having at least a first phase, a second phase different from the first phase, and a third phase that is different from the first and second phases, wherein each phase is independently selected from Pm or On, where m and n are individually an integer, M is a transition metal or a mixture of transition metals, and x is greater than 0 and less than or equal to 1.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: June 18, 2019
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Gui-Liang Xu, Zonghai Chen, Khalil Amine
  • Publication number: 20190044181
    Abstract: An electrochemical device includes a cathode including elemental selenium, elemental sulfur, or selenium-sulfur containing composite; a negative electrode; a separator; and an electrolyte including a poly(alkyleneoxide) siloxane; and a salt; wherein a concentration of the salt in the electrolyte is sufficient to minimize dissolution of polysulfides/polyselenides formed during cycling of the device.
    Type: Application
    Filed: August 7, 2017
    Publication date: February 7, 2019
    Inventors: Gui-Liang Xu, Jianzhao Liu, Zonghai Chen, Khalil Amine
  • Publication number: 20190006662
    Abstract: An active cathode material containing particles with a core containing a lithium transition metal oxide, each core at least partially encapsulated by a layer including the lithium transition metal oxide and dopant cation; and an outer layer containing metal oxide; wherein the dopant cation is selected from the group consisting of Al, Ti, Sn, Mg, Zr, Cu, Fe, Ca, W, Ga, Sc, Y, La, Hf, V, In, Nb, Ta, and any combination of two or more thereof; and the dopant cation is present in an amount of 10 wt. % or less of the particle.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 3, 2019
    Applicant: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Khalil Amine, Xiaoqiao Zeng, Zonghai Chen, Filippo Maglia
  • Publication number: 20180090751
    Abstract: An electrochemical device includes an anode, a separator, a cathode comprising a selenium-doped sulfur/carbon composite that includes a conductive carbon matrix and nano-sized selenium-doped sulfur particles of formula SxSey, where a ratio of x:y is from 2.5 to 1000, and an electrolyte comprising a salt and a non-aqueous fluorinated ether solvent.
    Type: Application
    Filed: September 29, 2016
    Publication date: March 29, 2018
    Inventors: Gui-Liang Xu, Zonghai Chen, Khalil Amine
  • Publication number: 20180090758
    Abstract: A cathode active material includes NaxMO2 having at least a first phase, a second phase different from the first phase, and a third phase that is different from the first and second phases, wherein each phase is independently selected from Pm or On, where m and n are individually an integer, M is a transition metal or a mixture of transition metals, and x is greater than 0 and less than or equal to 1.
    Type: Application
    Filed: September 29, 2016
    Publication date: March 29, 2018
    Inventors: Gui-Liang Xu, Zonghai Chen, Khalil Amine
  • Patent number: 9825287
    Abstract: An active material for an electrochemical device wherein a surface of the active material is modified by a surface modification agent, wherein the surface modification agent is an organometallic compound.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: November 21, 2017
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Zonghai Chen, Khalil Amine, Ilias Belharouak
  • Publication number: 20170279162
    Abstract: A lithium or sodium battery includes a cathode containing manganese; an anode containing an active anode material; a separator; an electrolyte; and a transition metal ion sequestration agent; wherein the transition metal ion sequestration agent contains a micron or nano-sized inorganic compound and the transition metal ion sequestration agent is located on and/or within the separator; on and/or within the anode; in the electrolyte; or any combination thereof.
    Type: Application
    Filed: March 20, 2017
    Publication date: September 28, 2017
    Inventors: Daniel R. Vissers, Khalil Amine, Zonghai Chen, Ujjal Das
  • Publication number: 20170214035
    Abstract: An electrochemical device includes an anode containing a phosphorus-carbon composite including a conductive carbon matrix and nano-sized phosphorus particles, wherein the nano-sized phosphorus particles are uniformly dispersed on the surface and/or pores of the carbon matrix.
    Type: Application
    Filed: January 26, 2016
    Publication date: July 27, 2017
    Inventors: Guiliang Xu, Zonghai Chen, Khalil Amine
  • Patent number: 9362599
    Abstract: A lithium-air cell includes a negative electrode; an air positive electrode; and a non-aqueous electrolyte which includes an anion receptor that may be represented by one or more of the formulas.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: June 7, 2016
    Assignee: UCHICAGO ARGONNE LLC
    Inventors: Khalil Amine, Zonghai Chen, Zhengcheng Zhang
  • Patent number: 9300000
    Abstract: The present invention provides a non-aqueous redox flow battery comprising a negative electrode immersed in a non-aqueous liquid negative electrolyte, a positive electrode immersed in a non-aqueous liquid positive electrolyte, and a cation-permeable separator (e.g., a porous membrane, film, sheet, or panel) between the negative electrolyte from the positive electrolyte. During charging and discharging, the electrolytes are circulated over their respective electrodes. The electrolytes each comprise an electrolyte salt (e.g., a lithium or sodium salt), a transition-metal free redox reactant, and optionally an electrochemically stable organic solvent. Each redox reactant is selected from an organic compound comprising a conjugated unsaturated moiety, a boron cluster compound, and a combination thereof. The organic redox reactant of the positive electrolyte is selected to have a higher redox potential than the redox reactant of the negative electrolyte.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: March 29, 2016
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Andrew N. Jansen, John T. Vaughey, Zonghai Chen, Lu Zhang, Fikile R. Brushett
  • Patent number: 9184428
    Abstract: The present invention is generally related to electrolytes containing anion receptor additives to enhance the power capability of lithium-ion batteries. The anion receptor of the present invention is a Lewis acid that can help to dissolve LiF in the passivation films of lithium-ion batteries. Accordingly, one aspect the invention provides electrolytes comprising a lithium salt; a polar aprotic solvent; and an anion receptor additive; and wherein the electrolyte solution is substantially non-aqueous. Further there are provided electrochemical devices employing the electrolyte and methods of making the electrolyte.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: November 10, 2015
    Assignee: UCHICAGO ARGONNE LLC
    Inventors: Zonghai Chen, Khalil Amine
  • Publication number: 20150287987
    Abstract: An active material for an electrochemical device wherein a surface of the active material is modified by a surface modification agent, wherein the surface modification agent is an organometallic compound.
    Type: Application
    Filed: June 19, 2015
    Publication date: October 8, 2015
    Inventors: Zonghai Chen, Khalil Amine, Ilias Belharouak
  • Patent number: 9130241
    Abstract: Lithium-air cells employing poly(ethyleneoxide) phosphate-based electrolytes may be prepared and exhibit improved charge carrying capacity.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: September 8, 2015
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Zonghai Chen, Khalil Amine
  • Patent number: 9065115
    Abstract: A method includes modifying a surface of an electrode active material including providing a solution or a suspension of a surface modification agent; providing the electrode active material; preparing a slurry of the solution or suspension of the surface modification agent, the electrode active material, a polymeric binder, and a conductive filler; casting the slurry in a metallic current collector; and drying the cast slurry.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: June 23, 2015
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Zonghai Chen, Khalil Amine, Ilias Belharouak
  • Patent number: 8968940
    Abstract: A compound has general Formula I, II, III, or IV: where X and Y are independently a group of Formula (A): and Z a group of Formula (B): The compounds may be used in electrolytes and electrochemical devices.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: March 3, 2015
    Assignee: UChicago Argonne, LLC
    Inventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine, Zonghai Chen
  • Publication number: 20140023941
    Abstract: A lithium-air cell includes a negative electrode; an air positive electrode; and a non-aqueous electrolyte which includes an anion receptor that may be represented by one or more of the formulas.
    Type: Application
    Filed: April 5, 2012
    Publication date: January 23, 2014
    Inventors: Khalil Amine, Zonghai chen, Zhengcheng Zhang
  • Publication number: 20130273441
    Abstract: Lithium-air cells employing poly(ethyleneoxide) phosphate-based electrolytes may be prepared and exhibit improved charge carrying capacity.
    Type: Application
    Filed: June 7, 2013
    Publication date: October 17, 2013
    Inventors: Zonghai Chen, Khalil Amine
  • Publication number: 20130224538
    Abstract: The present invention provides a non-aqueous redox flow battery comprising a negative electrode immersed in a non-aqueous liquid negative electrolyte, a positive electrode immersed in a non-aqueous liquid positive electrolyte, and a cation-permeable separator (e.g., a porous membrane, film, sheet, or panel) between the negative electrolyte from the positive electrolyte. During charging and discharging, the electrolytes are circulated over their respective electrodes. The electrolytes each comprise an electrolyte salt (e.g., a lithium or sodium salt), a transition-metal free redox reactant, and optionally an electrochemically stable organic solvent. Each redox reactant is selected from an organic compound comprising a conjugated unsaturated moiety, a boron cluster compound, and a combination thereof. The organic redox reactant of the positive electrolyte is selected to have a higher redox potential than the redox reactant of the negative electrolyte.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Applicant: UCHICAGO ARGONNE LLC
    Inventors: Andrew N. JANSEN, John T. VAUGHEY, Zonghai CHEN, Lu ZHANG, Fikile R. BRUSHETT
  • Patent number: 8475688
    Abstract: Lithium-air cells using poly(ethyleneoxide) (PEO) siloxane-based or poly(ethyleneoxide) phosphate-based electrolytes may be prepared and exhibit improved charge carrying capacity.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: July 2, 2013
    Assignee: UChicago Argonne, LLC
    Inventors: Zonghai Chen, Khalil Amine