Patents by Inventor Qingzheng Wang

Qingzheng 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).

  • Patent number: 9786954
    Abstract: The electrolyte includes one or more salts and a silane. The silane has a silicon linked to one or more first substituents that each include a poly(alkylene oxide) moiety or a cyclic carbonate moiety. The silane can be linked to four of the first substituents. Alternately, the silane can be linked to the one or more first substituents and one or more second substituents that each exclude both a poly(alkylene oxide) moiety and a cyclic carbonate moiety.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: October 10, 2017
    Inventors: Robert C. West, Khalil Amine, Zhengcheng Zhang, Qingzheng Wang, Nicholas A. A. Rossi, Sang Young Yoon, Hiroshi Nakahara
  • Publication number: 20140342244
    Abstract: The electrolyte includes one or more salts and a silane. The silane has a silicon linked to one or more first substituents that each include a poly(alkylene oxide) moiety or a cyclic carbonate moiety. The silane can be linked to four of the first substituents. Alternately, the silane can be linked to the one or more first substituents and one or more second substituents that each exclude both a poly(alkylene oxide) moiety and a cyclic carbonate moiety.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 20, 2014
    Inventors: Robert C. West, Khalil Amine, Zhengcheng Zhang, Qingzheng Wang, Nicholas A.A. Rossi, Sang Young Yoon, Hiroshi Nakahara
  • Patent number: 8765295
    Abstract: The electrolyte includes one or more salts and a silane. The silane has a silicon linked to one or more first substituents that each include a poly(alkylene oxide) moiety or a cyclic carbonate moiety. The silane can be linked to four of the first substituents. Alternately, the silane can be linked to the one or more first substituents and one or more second substituents that each exclude both a poly(alkylene oxide) moiety and a cyclic carbonate moiety.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: July 1, 2014
    Inventors: Robert C. West, Khalil Amine, Zhengcheng Zhang, Qingzheng Wang, Nicholas A. A. Rossi, Sang Young Yoon, Hiroshi Nakahara
  • Publication number: 20120135313
    Abstract: The electrolyte includes one or more salts and a silane. The silane has a silicon linked to one or more first substituents that each include a poly(alkylene oxide) moiety or a cyclic carbonate moiety. The silane can be linked to four of the first substituents. Alternately, the silane can be linked to the one or more first substituents and one or more second substituents that each exclude both a poly(alkylene oxide) moiety and a cyclic carbonate moiety.
    Type: Application
    Filed: December 12, 2011
    Publication date: May 31, 2012
    Inventors: Robert C. West, Khalil Amine, Zhengcheng Zhang, Qingzheng Wang, Nicholas A.A. Rossi, Sang Young Yoon, Hiroshi Nakahara
  • Publication number: 20120115041
    Abstract: One example of the disiloxanes include a backbone with a first silicon and a second silicon. The first silicon is linked to a first substituent selected from a group consisting of: a first side chain that includes a cyclic carbonate moiety; a first side chain that includes a poly(alkylene oxide) moiety; and a first cross link links the disiloxane to a second siloxane and that includes a poly(alkylene oxide) moiety. In some instance, the second silicon is linked to a second substituent selected from a group consisting of: a second side chain that includes a cyclic carbonate moiety, and a second side chain that includes a poly(alkylene oxide) moiety.
    Type: Application
    Filed: December 12, 2011
    Publication date: May 10, 2012
    Inventors: Robert C. West, Khalil Amine, Zhengcheng Zhang, Qingzheng Wang, Nicholas Agostino Antonio Rossi, Donald R. Vissers
  • Patent number: 8129193
    Abstract: The present invention is generally directed to thiol quantitation assays, methods of performing the assays, and compounds used in the assays. It is more specifically directed to assays that include one or more disulfides and related molecules and methods. The disulfides contain a FRET pair.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: March 6, 2012
    Assignee: AnaSpec Incorporated
    Inventors: Jianjun He, Anita Hong, Qingzheng Wang, Raman Khosrow Afshar, Ming Zhu, Vera Rakhmanova
  • Patent number: 8076032
    Abstract: The electrolyte includes one or more salts and a silane. The silane has a silicon linked to one or more first substituents that each include a poly(alkylene oxide) moiety or a cyclic carbonate moiety. The silane can be linked to four of the first substituents. Alternately, the silane can be linked to the one or more first substituents and one or more second substituents that each exclude both a poly(alkylene oxide) moiety and a cyclic carbonate moiety.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: December 13, 2011
    Inventors: Robert C. West, Khalil Amine, Zhengcheng Zhang, Qingzheng Wang, Nicholas A. A. Rossi, Sang Young Yoon, Hiroshi Nakahara
  • Patent number: 8076031
    Abstract: One example of the disiloxanes include a backbone with a first silicon and a second silicon. The first silicon is linked to a first substituent selected from a group consisting of: a first side chain that includes a cyclic carbonate moiety; a first side chain that includes a poly(alkylene oxide) moiety; and a first cross link links the disiloxane to a second siloxane and that includes a poly(alkylene oxide) moiety. In some instance, the second silicon is linked to a second substituent selected from a group consisting of: a second side chain that includes a cyclic carbonate moiety, and a second side chain that includes a poly(alkylene oxide) moiety.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: December 13, 2011
    Inventors: Robert C. West, Khalil Amine, Zhengcheng Zhang, Qingzheng Wang, Nicholas Agostino Antonio Rossi, Donald R. Vissers
  • Publication number: 20110027900
    Abstract: The present invention is generally directed to thiol quantitation assays, methods of performing the assays, and compounds used in the assays. It is more specifically directed to assays that include one or more disulfides and related molecules and methods. The disulfides contain a FRET pair.
    Type: Application
    Filed: July 28, 2010
    Publication date: February 3, 2011
    Applicant: AnaSpec Incorporated
    Inventors: Jianjun He, Anita Hong, Qingzheng Wang, Raman Khosrow Afshar, Ming Zhu, Vera Rakhmanova
  • Patent number: 7851092
    Abstract: The present invention is generally related to electrolytes containing novel redox shuttles for overcharge protection of lithium-ion batteries. The redox shuttles are capable of thousands hours of overcharge tolerance and have a redox potential at about 3-5.5 V vs. Li and particularly about 4.4-4.8 V vs. Li. Accordingly, in one aspect the invention provides electrolytes comprising an alkali metal salt; a polar aprotic solvent; and a redox shuttle additive that is an aromatic compound having at least one aromatic ring with four or more electronegative substituents, two or more oxygen atoms bonded to the aromatic ring, and no hydrogen atoms bonded to the aromatic ring; 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 1, 2006
    Date of Patent: December 14, 2010
    Assignee: U Chicago Argonne LLC
    Inventors: Khalil Amine, Zonghai Chen, Qingzheng Wang
  • Patent number: 7695860
    Abstract: Disclosed is a nonaqueous liquid electrolyte comprising poly(siloxane-g-3 ethylene oxide) and its synthesis. This electrolyte provides significant safety, improved electrochemical stability, improved conductivity, lower impedance, and lower manufacturing costs.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: April 13, 2010
    Assignee: Quallion LLC
    Inventors: Khalil Amine, Robert C. West, Qingzheng Wang, Bookeun Oh, Donald R. Vissers, Hisashi Tsukamoto
  • Publication number: 20080134492
    Abstract: Gel electrolytes are described having at least one poly(ethyleneoxide) siloxane; at least one crosslinking agent; at least one monofunctional monomeric compound; at least one salt; and at least one radical reaction initiator. Methods for the preparation of the gel electrolytes and electrochemical cells prepared with the gel electrolytes are also described.
    Type: Application
    Filed: March 29, 2007
    Publication date: June 12, 2008
    Inventors: Khalil Amine, Zonghai Chen, Qingzheng Wang
  • Publication number: 20060199080
    Abstract: The present invention is generally related to electrolytes containing novel redox shuttles for overcharge protection of lithium-ion batteries. The redox shuttles are capable of thousands hours of overcharge tolerance and have a redox potential at about 3-5.5 V vs. Li and particularly about 4.4-4.8 V vs. Li. Accordingly, in one aspect the invention provides electrolytes comprising an alkali metal salt; a polar aprotic solvent; and a redox shuttle additive that is an aromatic compound having at least one aromatic ring with four or more electronegative substituents, two or more oxygen atoms bonded to the aromatic ring, and no hydrogen atoms bonded to the aromatic ring; 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: Application
    Filed: March 1, 2006
    Publication date: September 7, 2006
    Inventors: Khalil Amine, Zonghai Chen, Qingzheng Wang
  • Publication number: 20060035154
    Abstract: The electrochemical device has an electrolyte that includes one or more tetrasiloxanes. The tetrasiloxanes have a backbone with two central silicons and two terminal silicons. A first one of the silicons is linked to a side chain that includes a poly(alkylene oxide) moiety. A second one of the silicons is linked to a side chain that includes a poly(alkylene oxide) moiety or to a side chain that includes a cyclic carbonate moiety. When each of the central silicons is linked to a side chain that includes a poly(alkylene oxide) moiety, each of the central silicons is directly linked to the poly(alkylene oxide) moiety.
    Type: Application
    Filed: October 21, 2004
    Publication date: February 16, 2006
    Inventors: Robert West, Khalil Amine, Zhengcheng Zhang, Qingzheng Wang, Donald Vissers
  • Publication number: 20050170254
    Abstract: One example of the disiloxanes include a backbone with a first silicon and a second silicon. The first silicon is linked to a first substituent selected from a group consisting of: a first side chain that includes a cyclic carbonate moiety; a first side chain that includes a poly(alkylene oxide) moiety; and a first cross link links the disiloxane to a second siloxane and that includes a poly(alkylene oxide) moiety. In some instance, the second silicon is linked to a second substituent selected from a group consisting of: a second side chain that includes a cyclic carbonate moiety, and a second side chain that includes a poly(alkylene oxide) moiety.
    Type: Application
    Filed: October 21, 2004
    Publication date: August 4, 2005
    Inventors: Robert West, Khalil Amine, Zhengcheng Zhang, Qingzheng Wang, Nicholas Rossi, Donald Vissers
  • Publication number: 20040214090
    Abstract: Disclosed is a cyclic siloxane polymer electrolyte for use in lithium electrochemical storage devices such as secondary batteries and capacitors. Electrolyte polymers comprising poly(siloxane-g-ethylene oxides) with one or more poly(ethylene oxide) side chains directly bonded to Si atoms are convenient to synthesize, have a long shelf life, have ionic conductivity of over 10−4 S/cm at room temperature, do not evaporate up to 150° C., have a wide electrochemical stability window of over 4.5 V (vs. lithium), and are not flammable. Viscosity and conductivity can be optimized by controlling the size of siloxane ring or the length of poly(ethylene oxide) side chain. The polymer disclosed may also be used in solid electrolyte applications by use of solidifying agents or entrapping within solid polymers. Means to synthesize both 8 and 10 membered rings are described using both boron and triethylamine as catalysts.
    Type: Application
    Filed: March 26, 2004
    Publication date: October 28, 2004
    Inventors: Robert C West, Qingzheng Wang, Khalil Amine
  • Publication number: 20040197665
    Abstract: Disclosed is a nonaqueous liquid electrolyte comprising poly(siloxane-g-3 ethylene oxide) and its synthesis. This electrolyte provides significant safety, improved electrochemical stability, improved conductivity, lower impedance, and lower manufacturing costs.
    Type: Application
    Filed: February 23, 2004
    Publication date: October 7, 2004
    Inventors: Khalil Amine, Robert C West, Qingzheng Wang, Bookeun Oh, Donald R Vissers, Hisashi Tsukamoto