Patents by Inventor Jian Wei Guo
Jian Wei Guo 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).
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Patent number: 10975481Abstract: A cathode catalyst used for conversion of a carbon dioxide gas by an electrochemical reduction includes at least one first catalyst layer and at least one second catalyst layer disposed on a surface of the at least one first catalyst layer. The at least one second catalyst layer is a porous structure. The at least one first catalyst layer and the at least one second catalyst layer are physically combined with each other, and materials of the at least one first catalyst layer and the at least one second catalyst layer are different. A cathode material and a reactor include the cathode catalyst are also provided.Type: GrantFiled: July 12, 2019Date of Patent: April 13, 2021Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Jian-Wei Guo, Chen-Chen Zhao, Xiang-Ming He, Li Wang, Jian-Jun Li, Jian Gao
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Publication number: 20190338428Abstract: A cathode catalyst used for conversion of a carbon dioxide gas by an electrochemical reduction includes at least one first catalyst layer and at least one second catalyst layer disposed on a surface of the at least one first catalyst layer. The at least one second catalyst layer is a porous structure. The at least one first catalyst layer and the at least one second catalyst layer are physically combined with each other, and materials of the at least one first catalyst layer and the at least one second catalyst layer are different. A cathode material and a reactor include the cathode catalyst are also provided.Type: ApplicationFiled: July 12, 2019Publication date: November 7, 2019Inventors: JIAN-WEI GUO, CHEN-CHEN ZHAO, XIANG-MING HE, LI WANG, JIAN-JUN LI, JIAN GAO
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Patent number: 10400340Abstract: A cathode catalyst used for conversion of a carbon dioxide gas by an electrochemical reduction includes at least one first catalyst layer and at least one second catalyst layer disposed on a surface of the at least one first catalyst layer. The at least one second catalyst layer is a porous structure. The at least one first catalyst layer and the at least one second catalyst layer are physically combined with each other, and materials of the at least one first catalyst layer and the at least one second catalyst layer are different. A cathode material and a reactor include the cathode catalyst are also provided.Type: GrantFiled: March 11, 2013Date of Patent: September 3, 2019Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Jian-Wei Guo, Chen-Chen Zhao, Xiang-Ming He, Li Wang, Jian-Jun Li, Jian Gao
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Patent number: 10029242Abstract: A carbon nanotube-metal particle composite includes: carbon nanotubes, polymer layer, and metal particles. The polymer layer is coated on a surface of the carbon nanotubes and defines a number of uniformly distributed pores. the metal particles are located in the pores. A catalyst including the carbon nanotube-metal particle composite is also disclosed.Type: GrantFiled: December 29, 2012Date of Patent: July 24, 2018Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Jian-Wei Guo, Xiao-Lin Xie, Cheng Wang, Xiang-Ming He, Wen-Juan Wei, Chen-Chen Zhao
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Patent number: 9923241Abstract: The present disclosure provides an electrolyte additive. The electrolyte additive comprises: maleimide derivative, bis-maleimide derivative, or combinations there of The structural formulas of maleimide derivative and bis-maleimide derivative respectively are: wherein, R1, R2 are selected from hydrogen atom and halogen atoms, R3 is selected from silicon containing group, nitrogen containing group, fluorine containing group, phosphorus containing group, and a repeating ethoxy group. The present disclosure also provides an electrolyte liquid and a lithium ion battery using the electrolyte additive.Type: GrantFiled: December 29, 2015Date of Patent: March 20, 2018Assignees: Jiangsu Huadong Institute of Li-ion Battery Co. Ltd., Tsinghua UniversityInventors: Ju-Ping Yang, Xiang-Ming He, Li Wang, Jian-Jun Li, Yu-Ming Shang, Jian Gao, Yao-Wu Wang, Jian-Wei Guo
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Patent number: 9923200Abstract: A method for making a sulfur-graphene composite material is provided. In the method, an elemental sulfur solution and a graphene dispersion are provided. The elemental sulfur solution includes a first solvent and an elemental sulfur dissolved in the first solvent. The graphene dispersion includes a second solvent and graphene sheets dispersed in the second solvent. The elemental sulfur solution is added to the graphene dispersion, a number of elemental sulfur particles are precipitated and attracted to a surface of the graphene sheets to form the sulfur-graphene composite material. The sulfur-graphene composite material is separated from the mixture.Type: GrantFiled: November 2, 2016Date of Patent: March 20, 2018Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Li Wang, Xiang-Ming He, Jian-Jun Li, Jian-Wei Guo, Wen-Ting Sun, Jian-Guo Ren
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Patent number: 9786942Abstract: A membrane electrode includes a first electrode, a second electrode, and a proton exchange membrane sandwiched between the first electrode and the second electrode. The first electrode includes a first gas diffusion layer and a first catalyst layer. The second electrode includes a second gas diffusion layer and a second catalyst layer. The first catalyst layer or the second catalyst layer includes a carbon nanotube-metal particle composite including carbon nanotubes, polymer layer, and metal particles. The polymer layer is coated on a surface of the carbon nanotubes and defines a plurality of pores uniformly distributed; the metal particles are located in the pores. A fuel cell including the membrane electrode is also disclosed.Type: GrantFiled: December 29, 2012Date of Patent: October 10, 2017Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Jian-Wei Guo, Xiao-Lin Xie, Cheng Wang, Xiang-Ming He, Wen-Juan Wei, Chen-Chen Zhao
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Patent number: 9669398Abstract: A method for making a carbon nanotube-metal particle composite is provided. Carbon nanotubes, polymer monomers, a first solution containing metal ions, and a second solution containing carboxylic acid radical ions are provided. The carbon nanotubes and the polymer monomers are mixed in a solvent to form a first mixture. The polymer monomers are adsorbed on the carbon nanotubes. A second mixture is formed by mixing the first mixture, the first solution, and the second solution. The polymer monomers, the first solution, and the second solution react with each other to form a coordination complex mixture containing the metal ions. The coordination complex mixture is adsorbed on the surface of the carbon nanotubes. A reducing agent is added into the second mixture to reduce the metal ions of the coordination complex mixture to metal particles, simultaneously, the polymer monomers are polymerize to in situ form the carbon nanotube-metal particle composite.Type: GrantFiled: December 29, 2012Date of Patent: June 6, 2017Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Jian-Wei Guo, Xiao-Lin Xie, Cheng Wang, Xiang-Ming He, Wen-Juan Wei, Chen-Chen Zhao
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Publication number: 20170054149Abstract: A method for making a sulfur-graphene composite material is provided. In the method, an elemental sulfur solution and a graphene dispersion are provided. The elemental sulfur solution includes a first solvent and an elemental sulfur dissolved in the first solvent. The graphene dispersion includes a second solvent and graphene sheets dispersed in the second solvent. The elemental sulfur solution is added to the graphene dispersion, a number of elemental sulfur particles are precipitated and attracted to a surface of the graphene sheets to form the sulfur-graphene composite material. The sulfur-graphene composite material is separated from the mixture.Type: ApplicationFiled: November 2, 2016Publication date: February 23, 2017Inventors: LI WANG, XIANG-MING HE, JIAN-JUN LI, JIAN-WEI GUO, WEN-TING SUN, JIAN-GUO REN
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Patent number: 9518329Abstract: A method for electrochemically converting a carbon dioxide gas into expected products includes using a member reactor. In the method, a membrane reactor includes a cavity, a solid electrolyte membrane separator, a cathode, an anode, and a fuel cell is provided. A cathode electrolyte and the carbon dioxide gas are passed through the cathode, and an anode electrolyte and an anode active material are passed through the anode chamber at the same time. An electrolytic voltage is applied to decompose the carbon dioxide gas into expected products. The expected products include a hydrogen gas and an oxygen gas which are fed back to the fuel cell to generate electric power.Type: GrantFiled: August 6, 2012Date of Patent: December 13, 2016Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Cheng Wang, Chen-Chen Zhao, Zhi-Xiang Liu, Jian-Wei Guo, Xiang-Ming He
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Publication number: 20160200589Abstract: A method for making lithium cobalt oxide requires a cobalt salt solution and an alkaline solution as reactants, these reactants being put into a controlled crystallization reactor containing a buffer agent. The reactants are stirred to form spheres of cobalt oxyhydroxide. The spherical cobalt oxyhydroxide is put into a lithium hydroxide solution to have a hydrothermal reaction in a hydrothermal reactor to replace the hydrogen in cobalt oxyhydroxide with the lithium in lithium hydroxide, to form a product of spheres.Type: ApplicationFiled: February 25, 2016Publication date: July 14, 2016Inventors: MOU FANG, YAO-WU WANG, XIANG-MING HE, LI WANG, YU-MING SHANG, JIAN GAO, JIAN-WEI GUO, ZONG-QIANG MAO
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Publication number: 20160167979Abstract: A method for making a spherical cobalt oxyhydroxide requires a controlled crystallization reactor. A buffer agent is put into the controlled crystallization reactor. The buffer agent is capable of controlling a reacting speed of reactants. A cobalt salt solution and an alkaline solution as the reactants are added into the buffer agent in the controlled crystallization reactor. The reactants react together in a controlled crystallization method, the reactants being agitated only at a bottom region of the container of the controlled crystallization reactor.Type: ApplicationFiled: February 25, 2016Publication date: June 16, 2016Inventors: MOU FANG, YAO-WU WANG, XIANG-MING HE, LI WANG, YU-MING SHANG, JIAN GAO, JIAN-WEI GUO, ZONG-QIANG MAO
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Publication number: 20160111754Abstract: The present disclosure provides an electrolyte additive. The electrolyte additive comprises: maleimide derivative, bis-maleimide derivative, or combinations there of The structural formulas of maleimide derivative and bis-maleimide derivative respectively are: wherein, R1, R2 are selected from hydrogen atom and halogen atoms, R3 is selected from silicon containing group, nitrogen containing group, fluorine containing group, phosphorus containing group, and a repeating ethoxy group. The present disclosure also provides an electrolyte liquid and a lithium ion battery using the electrolyte additive.Type: ApplicationFiled: December 29, 2015Publication date: April 21, 2016Inventors: JU-PING YANG, XIANG-MING HE, LI WANG, JIAN-JUN LI, YU-MING SHANG, JIAN GAO, YAO-WU WANG, JIAN-WEI GUO
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Patent number: 9219280Abstract: The invention relates to a current collector. The current collector include a metal foil and a graphene film covered on at least one surface of the metal foil. The invention also relates to an electrode of an electrochemical battery and the electrochemical battery using the current collector.Type: GrantFiled: July 20, 2012Date of Patent: December 22, 2015Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Xiang-Ming He, Li Wang, Jian-Jun Li, Jian-Wei Guo, Jian-Guo Ren
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Patent number: 9217202Abstract: A membrane reactor used for electrochemically converting a carbon dioxide gas into an expected product includes a cavity, a solid electrolyte membrane separator, a cathode, an anode, and a power source. The solid electrolyte membrane separator is disposed in the cavity and divides the cavity into two chambers defined as a cathode chamber and an anode chamber. The cathode is disposed in the cathode chamber, and the anode is disposed in the anode chamber. The cathode is a trickle bed structure including a porous conductive layer and cathode particles disposed on the porous conductive layer. The power source is disposed outside the cavity to provide an electrolytic voltage.Type: GrantFiled: August 6, 2012Date of Patent: December 22, 2015Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Cheng Wang, Chen-Chen Zhao, Zhi-Xiang Liu, Jian-Wei Guo, Xiang-Ming He
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Patent number: 9145614Abstract: A membrane reactor used for electrochemically converting a carbon dioxide gas into an expected product includes a cavity, a solid electrolyte membrane separator, a cathode, an anode, and a fuel cell. The solid electrolyte membrane separator is disposed in the cavity and divides the cavity into two chambers defined as a cathode chamber and an anode chamber. The cathode is disposed in the cathode chamber, and the anode is disposed in the anode chamber. The fuel cell is disposed outside the cavity to provide an electrolytic voltage. The fuel cell includes a fuel inlet, an oxidant inlet, and a reaction product outlet. The expected product includes a hydrogen gas and an oxygen gas. The hydrogen gas used as a fuel is fed in the fuel inlet, and the oxygen gas used as an oxidant is fed in the oxidant inlet for the fuel cell to produce electrical power.Type: GrantFiled: August 6, 2012Date of Patent: September 29, 2015Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Cheng Wang, Chen-Chen Zhao, Zhi-Xiang Liu, Jian-Wei Guo, Xiang-Ming He
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Patent number: 9099689Abstract: A method for making current collector is described. In the method, a substrate, a graphene film, and a plastic support film are provided. The substrate has a surface. The graphene film is disposed on the surface of the substrate. The graphene film disposed on the surface of the substrate and the plastic support film are laminated to form a substrate-graphene-plastic support film composite structure. The substrate is removed.Type: GrantFiled: December 18, 2012Date of Patent: August 4, 2015Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Xiang-Ming He, Li Wang, Jian-Jun Li, Jian Gao, Jian-Wei Guo
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Patent number: 9017639Abstract: In the method for making graphene, an electrolyte solution is formed by dissolving an electrolyte lithium salt in an organic solvent. Lithium ions are separated out from the electrolyte lithium salt in the electrolyte solution. Metal lithium and graphite are disposed in the electrolyte solution, and the metal lithium and the graphite are in contact with each other. In the electrolyte solution, lithium ions and organic solvent molecules jointly insert between adjacent layers of the graphite to form a graphite intercalation compound. The graphene is peeled off from the graphite intercalation compound.Type: GrantFiled: July 20, 2012Date of Patent: April 28, 2015Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Xiang-Ming He, Li Wang, Jian-Jun Li, Jian-Wei Guo, Wen-Ting Sun, Jian-Guo Ren
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Patent number: 8907616Abstract: A hybrid power supply system includes a number of power modules electrically connected with each other in series. Each power module includes a fuel cell unit and a lithium-ion battery unit. Each fuel cell unit includes at least two fuel cell monomers electrically connected with each other in series. Each lithium-ion battery unit includes one or more lithium ion battery monomers electrically connected with each other in parallel. Each fuel cell unit is electrically connected with each lithium-ion battery unit in parallel to directly charge the lithium-ion battery unit.Type: GrantFiled: December 14, 2011Date of Patent: December 9, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Zhi-Xiang Liu, Cheng Wang, Xiang-Ming He, Jian-Jun Li, Jian-Wei Guo, Jian Gao
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Patent number: 8871300Abstract: A method for making a carbon nanotube based composite is provided. In the method, carriers, solution containing metal ions, and a carboxylic acid solution are mixed to form a mixed solution containing a complex compound. A reducing agent is added into the mixed solution. The metal ions are reduced to metal particles absorbed on the surface of the carriers. The carriers having the metal particles absorbed thereon are purified to obtain the carbon nanotube based composite.Type: GrantFiled: March 22, 2011Date of Patent: October 28, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Jian-Wei Guo, Li-Na Zhang, Li Wang, Cheng Wang, Xiang-Ming He, Zhi-Xiang Liu