Patents by Inventor Meilin Liu

Meilin Liu 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: 20220123341
    Abstract: Disclosed herein are barium hafnate comprising proton-conducting electrolytes for use in solid oxide fuel cells. The disclosed electrolytes are also useful for electrolysis operations and for carbon dioxide tolerance.
    Type: Application
    Filed: June 3, 2021
    Publication date: April 21, 2022
    Inventors: Meilin Liu, Ryan Murphy
  • Publication number: 20220109174
    Abstract: Disclosed are air electrode materials suitable for use in solid oxide electrochemical cells (SOCs). The disclosed cells can operate in a dual function modes, i.e., as a fuel cell and as an electrolysis cell. In both cases, chemical energy and electrical energy can be directly convert from one mode to the other; thereby providing a highly efficient energy conversion process that can be used as a sustainable energy source.
    Type: Application
    Filed: September 15, 2021
    Publication date: April 7, 2022
    Applicant: Phillips 66 Company
    Inventors: Weilin Zhang, Meilin Liu, Ying Liu, Yucun Zhou
  • Patent number: 11018346
    Abstract: A hybrid catalyst coating composed of a conformal thin film with exsoluted PrOx nano-particles. The conformal PNM thin film can be a perovskite composition of PrNi0.5Mn0.5O3 (PNM). The PrOx nano-particles dramatically enhance the oxygen reduction reaction kinetics via a high concentration of oxygen vacancies while the thin PNM film effectively suppresses strontium segregation from the cathode of an intermediate-temperature solid oxide fuel cell.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: May 25, 2021
    Assignee: Georgia Tech Research Corporation
    Inventors: Meilin Liu, Dong Ding, Yu Chen, Lei Zhang
  • Patent number: 10957903
    Abstract: The present invention provides a layered lithium-rich manganese-based cathode material with olivine structured LiMPO4 surface modification and a preparation method thereof. The preparation method comprises: firstly, preparing a pure-phase layered lithium-rich manganese-based cathode material by using a coprecipitation method and a high temperature sintering method, and then uniformly coating and doping olivine-structured LiMPO4 to the surface of the layered lithium-manganese-rich composite cathode material by using a sol-gel method. According to the present invention, the surface of the layered lithium-rich manganese-based cathode material is modified by olivine structured LiMPO4, such that cycle stability thereof is effectively improved, and voltage drop generated by the material in the cycle course is inhibited. The preparation method according to the present invention is simple, low cost, environmentally friendly, and is suitable for large-scale industrial production.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: March 23, 2021
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Chenghao Yang, Fenghua Zheng, Xunhui Xiong, Meilin Liu
  • Publication number: 20210036320
    Abstract: Disclosed are a lithium anode surface modification method for a lithium metal battery and a lithium metal battery. The modification method comprises the following steps: immersing, in a dry protective gas atmosphere, a lithium metal anode in a fluorine ion-containing liquid, or dropping a fluorine ion-containing liquid on a surface of the lithium metal anode; after fluorination and removal, a protective layer rich in lithium fluoride is formed on the surface of the lithium metal anode, and a lithium metal-coated lithium metal anode is obtained.
    Type: Application
    Filed: October 31, 2018
    Publication date: February 4, 2021
    Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Xunhui XIONG, Gang WANG, Chenghao YANG, Zhihua LIN, Zhang LIN, Meilin LIU
  • Patent number: 10811717
    Abstract: A method of fabricating a SSZ/SDC bi-layer electrolyte solid oxide fuel cell, comprising the steps of: fabricating an NiO-YSZ anode substrate from a mixed NiO and yttria-stabilized zirconia by tape casting; sequentially depositing a NiO-SSZ buffer layer, a thin SSZ electrolyte layer and a SDC electrolyte on the NiO-YSZ anode substrate by a particle suspension coating or spraying process, wherein the layers are co-fired at high temperature to densify the electrolyte layers to at least about 96% of their theoretical densities; and painting/spraying a SSC-SDC slurry on the SDC electrolyte to form a porous SSC-SDC cathode. A SSZ/SDC bi-layer electrolyte cell device and a method of using such device are also discussed.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: October 20, 2020
    Assignees: GEORGIA TECH RESEARCH CORPORATION, PHILLIPS 66 COMPANY
    Inventors: Mingfei Liu, Meilin Liu, Ting He
  • Publication number: 20200328406
    Abstract: The present invention provides a layered lithium-rich manganese-based cathode material with olivine structured LiMPO4 surface modification and a preparation method thereof. The preparation method comprises: firstly, preparing a pure-phase layered lithium-rich manganese-based cathode material by using a coprecipitation method and a high temperature sintering method, and then uniformly coating and doping olivine-structured LiMPO4 to the surface of the layered lithium-manganese-rich composite cathode material by using a sol-gel method. According to the present invention, the surface of the layered lithium-rich manganese-based cathode material is modified by olivine structured LiMPO4, such that cycle stability thereof is effectively improved, and voltage drop generated by the material in the cycle course is inhibited. The preparation method according to the present invention is simple, low cost, environmentally friendly, and is suitable for large-scale industrial production.
    Type: Application
    Filed: December 8, 2016
    Publication date: October 15, 2020
    Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Chenghao YANG, Fenghua ZHENG, Xunhui XIONG, Meilin LIU
  • Publication number: 20200295379
    Abstract: A solid oxide fuel cell capable of directly utilizing hydrocarbons as a fuel source at operating temperatures between 200° C. and 500° C. The anode, electrolyte, and cathode of the solid oxide fuel cell can include technologies for improved operation at temperatures between 200° C. and 500° C. The anode can include technologies for improved direct utilization of hydrocarbon fuel sources.
    Type: Application
    Filed: July 19, 2017
    Publication date: September 17, 2020
    Inventors: Meilin Liu, Ik Chang, Yu Chen, Ben Deglee, Brian Doyle, Franklin Tao, Lei Zhang
  • Publication number: 20190173096
    Abstract: A solid oxide fuel cell capable of directly utilizing hydrocarbons as a fuel source at operating temperatures between 200° C. and 500° C. The anode, electrolyte, and cathode of the solid oxide fuel cell can include technologies for improved operation at temperatures between 200° C. and 500° C. The anode can include technologies for improved direct utilization of hydrocarbon fuel sources.
    Type: Application
    Filed: July 19, 2017
    Publication date: June 6, 2019
    Inventors: Meilin Liu, Ik Whang Chang, Yu Chen, Ben M. Deglee, Brian Doyle, Franklin Tao, Lei Zhang
  • Publication number: 20190140287
    Abstract: A hybrid catalyst coating composed of a conformal thin film with exsoluted PrOx nano-particles. The conformal PNM thin film can be a perovskite composition of PrNi0.5Mn0.5O3 (PNM). The PrOx nano-particles dramatically enhance the oxygen reduction reaction kinetics via a high concentration of oxygen vacancies while the thin PNM film effectively suppresses strontium segregation from the cathode of an intermediate-temperature solid oxide fuel cell.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 9, 2019
    Inventors: Meilin LIU, Dong DING, Yu CHEN, Lei ZHANG
  • Patent number: 9914649
    Abstract: A composition of matter is disclosed which is a perovskite having a composition A2?xA?xB2?yB?yO6??, where A is a praseodymium (Pr) element at the A-site of the perovskite, A? is a strontium (Sr) element at the A-site of the perovskite, B is a cobalt (Co) element at the B-site of the perovskite, and B? is a manganese (Mn) element at the B-site of the perovskite, and where 0<x ?1 and 0<y<2. Also disclosed is an electrode material Conformally coated with the composition of matter. Also disclosed are methods of producing the composition of matter and conformally coating the electrode material. Also disclosed an electrode is conformally coated with a praseodymium strontium manganese perovskite and a method for the coating.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: March 13, 2018
    Assignee: Georgia Tech Research Corporation
    Inventors: Dong Ding, Meilin Liu
  • Publication number: 20150325860
    Abstract: A composition of matter is disclosed which is a perovskite having a composition A2-xA?xB2-yB?yO6-?, where A is a praseodymium (Pr) element at the A-site of the perovskite, A? is a strontium (Sr) element at the A-site of the perovskite, B is a cobalt (Co) element at the B-site of the perovskite, and B? is a manganese (Mn) element at the B-site of the perovskite, and where 0<x?1 and 0<y<2. Also disclosed is an electrode material Conformally coated with the composition of matter. Also disclosed are methods of producing the composition of matter and conformally coating the electrode material. Also disclosed an electrode is conformally coated with a praseodymium strontium manganese perovskite and a method for the coating.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 12, 2015
    Inventors: Dong Ding, Meilin Liu
  • Patent number: 9118052
    Abstract: The present invention discloses an integrated SOFC system powered by natural gas. Specifically, a SOFC-O cell is combined with a SOFC-H cell so as to take advantage of the high operating temperature and steam reforming capabilities of the SOFC-O cell as well as the higher fuel conversion efficiency of the SOFC-H cell.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: August 25, 2015
    Assignees: Philips 66 Company, Georgia Tech Research Corporation
    Inventors: Mingfei Liu, Meilin Liu, Ting He
  • Patent number: 9012108
    Abstract: Embodiments of the present anhydrous fuel cell electrodes comprise an anhydrous catalyst layer and a gas diffusion layer, wherein the anhydrous catalyst layer comprises at least one catalyst, about 5 mg/cm2 to about 100 mg/cm2 of phosphoric acid added as a catalyzing reagent during formation of the catalyst layer, and a binder comprising at least one triazole modified polymer, wherein the triazole modified polymer comprises a polysiloxane backbone and a triazole substituent.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: April 21, 2015
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Georgia Tech Research Corporation
    Inventors: Meilin Liu, Xiaobing Zhu, Min Kyu Song, John G. Muldoon, Kohei Hase
  • Patent number: 8993200
    Abstract: The present invention relates to a novel method for preparing a BZCYYb material to be used in a solid oxide fuel cell. In particular, the method comprises mixing particular nano-sized and micro-sized ingredients and the size selection provides greatly improved performance characteristics of the resulting material. In particular, barium carbonate powder, zirconium oxide powder having particle diameters in the nanometer range, and cerium oxide powder having particle diameter in the micrometer range are used together with ytterbium oxide powder, and yttrium oxide powder.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: March 31, 2015
    Assignees: Georgia Tech Research Corporation, Phillips 66 Company
    Inventors: MingFei Liu, Meilin Liu, Ting He, Lei Yang
  • Patent number: 8932781
    Abstract: Embodiments of the present disclosure include chemical compositions, structures, anodes, cathodes, electrolytes for solid oxide fuel cells, solid oxide fuel cells, fuel cells, fuel cell membranes, separation membranes, catalytic membranes, sensors, coatings for electrolytes, electrodes, membranes, and catalysts, and the like, are disclosed.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: January 13, 2015
    Assignee: Georgia Tech Research Corporation
    Inventors: Lei Yang, Zhe Cheng, Ze Liu, Meilin Liu
  • Publication number: 20140227624
    Abstract: A method of fabricating a SSZ/SDC bi-layer electrolyte solid oxide fuel cell, comprising the steps of: fabricating an NiO-YSZ anode substrate from a mixed NiO and yttria-stabilized zirconia by tape casting; sequentially depositing a NiO-SSZ buffer layer, a thin SSZ electrolyte layer and a SDC electrolyte on the NiO-YSZ anode substrate by a particle suspension coating or spraying process, wherein the layers are co-fired at high temperature to densify the electrolyte layers to at least about 96% of their theoretical densities; and painting/spraying a SSC-SDC slurry on the SDC electrolyte to form a porous SSC-SDC cathode. A SSZ/SDC bi-layer electrolyte cell device and a method of using such device are also discussed.
    Type: Application
    Filed: January 30, 2014
    Publication date: August 14, 2014
    Applicants: GEORGIA TECH RESEARCH CORPORATION, PHILLIPS 66 COMPANY
    Inventors: Mingfei Liu, Meilin Liu, Ting He
  • Patent number: 8802316
    Abstract: Solid-oxide fuel cells include an electrolyte and an anode electrically coupled to a first surface of the electrolyte. A cathode is provided, which is electrically coupled to a second surface of the electrolyte. The cathode includes a porous backbone having a porosity in a range from about 20% to about 70%. The porous backbone contains a mixed ionic-electronic conductor (MIEC) of a first material infiltrated with an oxygen-reducing catalyst of a second material different from the first material.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: August 12, 2014
    Assignee: U.S. Department of Energy
    Inventors: Meilin Liu, Ze Liu, Mingfei Liu, Lifang Nie, David Spencer Mebane, Lane Curtis Wilson, Wayne Surdoval
  • Patent number: 8586259
    Abstract: Polymer electrolyte membranes (PEMs), methods and use thereof in fuel cells and methods of preparing thereof are disclosed. A PEM may include at least one porous support film and a polysiloxane polymer bonded to the at least one porous support film, wherein the polysiloxane polymer includes at least one polysiloxane grafted to a heterocycle.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: November 19, 2013
    Assignee: Georgia Tech Research Corporation
    Inventors: Xiaobing Zhu, Zhen Zhou, Meilin Liu
  • Publication number: 20130224627
    Abstract: The present invention discloses a novel scandium-doped Ba(Ce, Zr, Y)O3-? electrolyte for solid oxide fuel cells that exhibits elevated ion conductivity at intermediate temperature range comparing to other electrolyte materials, such as BZCYYb.
    Type: Application
    Filed: September 11, 2012
    Publication date: August 29, 2013
    Applicants: Georgia Tech Research Corporation, Phillips 66 Company
    Inventors: Mingfei LIU, Meilin LIU, Ting HE