Patents by Inventor Zhengcheng Zhang

Zhengcheng Zhang 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: 20130230783
    Abstract: A lithium-air battery includes a cathode including a porous active carbon material, a separator, an anode including lithium, and an electrolyte including a lithium salt and polyalkylene glycol ether, where the porous active carbon material is free of a metal-based catalyst.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 5, 2013
    Inventors: Khalil Amine, Larry A. Curtiss, Jun Lu, Kah Chun Lau, Zhengcheng Zhang, Yang-Kook Sun
  • Patent number: 8492033
    Abstract: Fast-cure gel polymer electrolytes are prepared by trapping an oligo(alkylene glycol)siloxane or silane in a three dimensional polymer matrix. An ion-conducting phase of the electrolyte contains a siloxane or silane compound and a lithium salt. Such siloxanes or silanes include a silicon or silicon oxide group having four or less substituents that is an oligo(alkylene glycol), or cyclic carbonate moiety.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: July 23, 2013
    Assignee: UChicago Argonne, LLC
    Inventors: Khalil Amine, Zhengcheng Zhang
  • Publication number: 20130171484
    Abstract: An autonomous battery shutdown system includes a battery including an anode and a cathode, and an electrolyte composition between the anode and the cathode. The electrolyte composition includes an ionically conductive liquid containing lithium ions, and temperature-sensitive particles including a polymer having a melting temperature between 60° C. and 120° C. When the temperature of the battery exceeds 120° C., the temperature-sensitive particles form an ion barrier that traverses the battery. The resulting shutdown battery may have a specific charge capacity that is more than 98% lower than the specific charge capacity of the original battery.
    Type: Application
    Filed: June 6, 2012
    Publication date: July 4, 2013
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: Marta B. Baginska, Benjamin J. Blaiszik, Aaron Esser-Kahn, Susan A. Odom, Wei Weng, Zhengcheng Zhang, Nancy R. Sottos, Scott R. White, Jeffrey S. Moore, Khalil Amine
  • Publication number: 20130071761
    Abstract: A process includes contacting a carbon support material with an oxidizing agent followed by the acid treatment to form a functionalized carbon support material including surface hydroxyl functionality; contacting the functionalized carbon support material with a solution of a catalyst precursor; and adjusting the pH of the solution to produce a carbon supported catalyst material including a metal oxide catalyst.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 21, 2013
    Inventors: Khalil Amine, Yang Qin, Zhengcheng Zhang
  • Patent number: 8283074
    Abstract: Metal complex salts may be used in lithium ion batteries. Such metal complex salts not only perform as an electrolyte salt in a lithium ion batteries with high solubility and conductivity, but also can act as redox shuttles that provide overcharge protection of individual cells in a battery pack and/or as electrolyte additives to provide other mechanisms to provide overcharge protection to lithium ion batteries. The metal complex salts have at least one aromatic ring. The aromatic moiety may be reversibly oxidized/reduced at a potential slightly higher than the working potential of the positive electrode in the lithium ion battery. The metal complex salts may also be known as overcharge protection salts.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: October 9, 2012
    Assignee: UChicago Argonne, LLC
    Inventors: Khalil Amine, Zhengcheng Zhang, Zonghai Chen
  • Publication number: 20120171578
    Abstract: The battery includes an electrolyte activating one or more cathodes and one or more anodes. The electrolyte includes one or more salts in a solvent. The solvent includes one or more organic solvents and one or more silanes and/or one or more siloxanes.
    Type: Application
    Filed: March 22, 2007
    Publication date: July 5, 2012
    Inventors: Zhengcheng Zhang, Phuong-Nghi Karen Lam, Mikito Nagata, Hisashi Tsukamoto
  • Publication number: 20120153219
    Abstract: An electrode includes a binder and an electroactive material, wherein the binder includes a polymer including a linear polysiloxane or a cyclic polysiloxane.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 21, 2012
    Inventors: Zhengcheng Zhang, Jian Dong, Khalil Amine
  • 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
  • Publication number: 20120088160
    Abstract: The present technology relates to stabilizing additives and electrolytes containing the same for use in electrochemical devices such as lithium ion batteries and capacitors. The stabilizing additives include triazinane triones and bicyclic compounds comprising succinic anhydride, such as compounds of Formulas I and II described herein.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Inventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine
  • Publication number: 20120082890
    Abstract: A electrolyte for a lithium battery includes a silane/siloxane compound represented by SiR4-x-yR?xR?y, by Formula II, or Formula III: where each R is individually an alkenyl, alkynyl, alk(poly)enyl, alk(poly)ynyl, aryl; each R? is represented by; each R? is represented by Formula I-B; R1 is an organic spacer; R2 is a bond or an organic spacer; R3 is alkyl or aryl; k is 1-15; m is 1-15; n is 1 or 2; p is 1-3; x? is 1-2; and y? is 0-2.
    Type: Application
    Filed: September 26, 2011
    Publication date: April 5, 2012
    Inventors: Jian Dong, Zhengcheng Zhang, Khalil Amine
  • Publication number: 20120082903
    Abstract: An ionic liquid that is a salt has a Formula: Such ionic liquids may be used in electrolytes and in electrochemical cells.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Inventors: Zhengcheng Zhang, Wei Weng, Lu Zhang, Khalil Amine
  • 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
  • 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
  • Publication number: 20110294003
    Abstract: Compounds may have general Formula I, II, or III: where R1, R2, R3, and R4 are independently H, F, Cl, Br, CN, NO2, a alkyl group, a haloalkyl group, a phosphate group, a polyether group; or R1 and R2, or R3 and R4, or R2 and R3 (in the case of Formula II) may join together to form a fused ring on the benzene ring; and X and Z are independently a group of Formula A: where R5 and R6 and R7 are independently H, F, Cl, Br, CN, NO2, a alkyl group, a haloalkyl group, a phosphate group, or a polyether group; R7 is H, F, Cl, Br, CN, NO2, a alkyl group, a haloalkyl group, a phosphate group, or a polyether group; n is an integer from 1 to 8; and m is an integer from 1 to 13. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.
    Type: Application
    Filed: May 24, 2011
    Publication date: December 1, 2011
    Inventors: Zhengcheng Zhang, Lu Zhang, Khalil Amine
  • Publication number: 20110294017
    Abstract: Compounds may have general Formula IVA or IVB. where, R8, R9, R10, and R11 are each independently selected from H, F, Cl, Br, CN, NO2, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z? is a linkage between X and Y. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.
    Type: Application
    Filed: May 23, 2011
    Publication date: December 1, 2011
    Inventors: Wei Weng, Zhengcheng Zhang, Khalil Amine
  • Publication number: 20110294018
    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: Application
    Filed: May 24, 2011
    Publication date: December 1, 2011
    Inventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine, Zonghai Chen
  • Publication number: 20110104576
    Abstract: A lithium-oxygen electrochemical cell of the invention comprises a lithium-containing anode, an oxygen-permeable cathode, a non-aqueous electrolyte comprising a lithium salt in a non-aqueous liquid between the anode and the cathode, and a source of gaseous oxygen in fluid communication with the cathode; the cathode comprising an oxygen-permeable support bearing carbon nanotubes having at least one open end. In some embodiments, the cell is rechargeable and the cathode includes a nanoparticulate catalyst in contact with the carbon nanotubes; wherein the catalyst is adapted to facilitate the reversible interconversion between oxygen gas and an oxygen anion e.g., oxide ion, peroxide ion, or a combination thereof, during charge and discharge of the cell.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 5, 2011
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Christopher S. JOHNSON, Vilas G. POL, Zhengcheng ZHANG
  • Publication number: 20110076572
    Abstract: A non-aqueous electrolyte includes an ionic electrolyte salt, and a non-aqueous electrolyte solvent that includes a mixture of siloxane or a silane or a mixture thereof, a sulfone, and a fluorinated ether or fluorinated ester or a mixture thereof, an ionic liquid, or a carbonate.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Inventors: Khalil Amine, Zonghai Chen, Zhengcheng Zhang
  • Publication number: 20100330433
    Abstract: Fast-cure gel polymer electrolytes are prepared by trapping an oligo(alkylene glycol)siloxane or silane in a three dimensional polymer matrix. An ion-conducting phase of the electrolyte contains a siloxane or silane compound and a lithium salt. Such siloxanes or silanes include a silicon or silicon oxide group having four or less substituents that is an oligo(alkylene glycol), or cyclic carbonate moiety.
    Type: Application
    Filed: June 14, 2010
    Publication date: December 30, 2010
    Inventors: Khalil Amine, Zhengcheng Zhang