Patents by Inventor Yunqi Liu
Yunqi 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).
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METHOD FOR VISIBLE LIGHT-MEDIATED CHEMICAL MODIFICATION OF POLYPEPTIDE AND PROTEIN BASED ON CYSTEINE
Publication number: 20250257095Abstract: A method for visible light-mediated chemical modification of a polypeptide or protein based on cysteine includes the following steps: allowing a cysteine residue on a cysteine-containing oligopeptide, polypeptide, or protein to undergo a reaction with an activating reagent to generate a free radical precursor in situ; and subjecting the free radical precursor to desulfurization under photocatalytic condition, and allowing the generated free radical intermediate to undergo an addition reaction with an olefin or an alkyne, such that sulfhydryl removal and carbon-carbon bond construction are achieved to produce a chemical modification product of the polypeptide and protein. The method cleverly avoids the influence on the chiral center, and thus the chirality of the amino acid residue can be retained. The method is conducive to well avoiding the occurrence of side reactions, and thus the efficiency of the entire conversion is very high.Type: ApplicationFiled: May 4, 2023Publication date: August 14, 2025Applicant: SHANGHAI JIAO TONG UNIVERSITYInventors: Zhankui SUN, Junliang ZHOU, Yunqi LIU -
Patent number: 12319858Abstract: For the organic compound in the present disclosure, by the combination of an anthracene ring and a specific substituent group, a structure of the organic compound has good hole and electron mobility and injection characteristics, and the stability of the compound may be improved. A boron-nitrogen compound provided in the present disclosure has excellent light-emitting characteristics due to a narrow full width at half maximum. When an organic light-emitting device is fabricated by using both the boron-nitrogen compound and the organic compound provided in the present disclosure as a light-emitting layer material, it may be possible to effectively enable the organic light-emitting device to have a relatively low driving voltage and maintain the stability of the voltage, the light-emitting efficiency may be improved, and the service life of the device can also be relatively long.Type: GrantFiled: November 11, 2024Date of Patent: June 3, 2025Assignee: ZHEJIANG HUAXIAN PHOTOELECTRICITY TECHNOLOGY CO., LTDInventors: Lei Zhang, Xiaoyu Zhao, Kongwu Wu, Yunqi Liu, Xiangzhen Kong
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Publication number: 20250174734Abstract: An electrochemical device includes a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode. A first surface of the positive electrode has a concave region, a second surface of the positive electrode has a convex region corresponding to the concave region, and a gap is formed between the positive electrode and the negative electrode via the convex region, or a gap is formed between the first surface of the positive electrode and the negative electrode via the concave region.Type: ApplicationFiled: January 29, 2025Publication date: May 29, 2025Applicant: Xiamen Ampace Technology LimitedInventors: Yunqi LIU, Shenpeng ZHANG
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Publication number: 20250154406Abstract: For the organic compound in the present disclosure, by the combination of an anthracene ring and a specific substituent group, a structure of the organic compound has good hole and electron mobility and injection characteristics, and the stability of the compound may be improved. A boron-nitrogen compound provided in the present disclosure has excellent light-emitting characteristics due to a narrow full width at half maximum. When an organic light-emitting device is fabricated by using both the boron-nitrogen compound and the organic compound provided in the present disclosure as a light-emitting layer material, it may be possible to effectively enable the organic light-emitting device to have a relatively low driving voltage and maintain the stability of the voltage, the light-emitting efficiency may be improved, and the service life of the device can also be relatively long.Type: ApplicationFiled: November 11, 2024Publication date: May 15, 2025Applicant: ZHEJIANG HUAXIAN PHOTOELECTRICITY TECHNOLOGY CO.,LTDInventors: Lei ZHANG, Xiaoyu ZHAO, Kongwu WU, Yunqi LIU, Xiangzhen KONG
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Publication number: 20250154407Abstract: An organic electroluminescent device includes a substrate, a first electrode, an organic light-emitting functional layer and a second electrode. The first electrode is located on the substrate, the organic light-emitting functional layer is located on the first electrode, and the second electrode is located on the organic light-emitting functional layer. The organic light-emitting functional layer includes a light-emitting layer. The light-emitting layer includes a boron-nitrogen compound. A boron-nitrogen parent nucleus of the boron-nitrogen compound defines that arylamine groups and a thiophene segment are paired with and connected to characteristic groups that are located on an edge of the boron-nitrogen compound. In this way, the boron-nitrogen compound may have good matching with an anthracene-based host material, which is conducive to the transmission of electrons and holes.Type: ApplicationFiled: January 14, 2025Publication date: May 15, 2025Applicant: ZHEJIANG HUAXIAN PHOTOELECTRICITY TECHNOLOGY CO.,LTDInventors: Lei ZHANG, Xiaoyu ZHAO, Kongwu WU, Yunqi LIU, Xiangzhen KONG
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Patent number: 12270008Abstract: A method for hydrotreating and recycling waste lubricating oil, the method comprising the two steps of slurry bed pre-hydrotreatment and deep hydrotreatment, specifically as follows: mechanical impurities are removed from waste lubricating oil, and then the oil is subjected to flash distillation to separate free water and a portion of light hydrocarbons; a bottom product of the flash distillation column is mixed with hydrogen and a self-sulfurizing oil-soluble transition metal catalyst, and then enters a slurry bed reactor for pre-hydrotreatment; a liquid product obtained by performing separation on a reaction effluent is subjected to hydrocyclone separation and solvent washing to remove solid residue, and then a pre-treated lubricating oil component is obtained; said component is mixed with hydrogen and then enters a hydrofining reactor, an isomerization-dewaxing reactor, and a supplementary refining reactor, connected in series, for hydrotreatment; and the reaction products are separated to obtain high-qualType: GrantFiled: January 10, 2022Date of Patent: April 8, 2025Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)Inventors: Bin Liu, Yongming Chai, Chenguang Liu, Yuan Pan, Yichuan Li, Kongyuan Zhang, Yunqi Liu
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Patent number: 12173252Abstract: The present invention relates to a pre-hydrotreatment and purification method for waste lubricating oil, the method comprising the following steps: mechanical impurities are removed from waste lubricating oil, and then the oil is subjected to flash distillation to separate free water and a portion of light hydrocarbons; a bottom product of the flash distillation column is mixed with hydrogen and a self-sulfurizing oil-soluble transition metal catalyst, and then enters a slurry bed reactor for pre-hydrotreatment; a gas product obtained by performing separation on a reaction effluent is subjected to adsorption purification and then enters a hydrogen recycle compressor for cyclic use; a liquid product obtained by performing separation on a reaction effluent is subjected to hydrocyclone separation and solvent washing to remove solid residue, and finally a purified lubricating oil component is obtained.Type: GrantFiled: January 10, 2022Date of Patent: December 24, 2024Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)Inventors: Bin Liu, Yongming Chai, Chenguang Liu, Yuan Pan, Yichuan Li, Kongyuan Zhang, Yunqi Liu
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Patent number: 12113236Abstract: Disclosed is an exhaust filter system for a battery pack, including an explosion-proof valve and a filter apparatus. One end of the explosion-proof valve is connected to a battery pack- and the other end is connected to the filter apparatus. The filter apparatus includes an introduction port, a discharge port, a housing, and a filter mechanism. The introduction port and the discharge port are separately disposed at two ends of the housing. The filter mechanism is disposed inside the housing and is provided with a plurality of filter holes. The present invention has the following beneficial effects: by optimal design of a novel explosion-proof valve and a novel filter apparatus, expanding the applicability of technical solutions of this application, solving the problem of fire induced by thermal runaway, exhausting combustion gas more smoothly, and achieving better effects of filtering and post handling for thermal runaway in a battery pack.Type: GrantFiled: August 27, 2020Date of Patent: October 8, 2024Assignee: Yantai Chungway New Energy Technology Co., Ltd.Inventors: Lilei Zhang, Hongbo Chang, Yechao Tan, Yunqi Liu
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Publication number: 20240170734Abstract: This invention provides nonaqueous electrolyte solutions for lithium batteries. The nonaqueous electrolyte solutions comprise a liquid electrolyte medium; a lithium-containing salt; and at least one oxygen-containing brominated flame retardant.Type: ApplicationFiled: May 10, 2022Publication date: May 23, 2024Inventors: Zhongxin Ge, Joseph Baker, Yunqi Liu, Huaxiang Yang
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Publication number: 20240010944Abstract: A method for hydrotreating and recycling waste lubricating oil, the method comprising the two steps of slurry bed pre-hydrotreatment and deep hydrotreatment, specifically as follows: mechanical impurities are removed from waste lubricating oil, and then the oil is subjected to flash distillation to separate free water and a portion of light hydrocarbons; a bottom product of the flash distillation column is mixed with hydrogen and a self-sulfurizing oil-soluble transition metal catalyst, and then enters a slurry bed reactor for pre-hydrotreatment; a liquid product obtained by performing separation on a reaction effluent is subjected to hydrocyclone separation and solvent washing to remove solid residue, and then a pre-treated lubricating oil component is obtained; said component is mixed with hydrogen and then enters a hydrofining reactor, an isomerization-dewaxing reactor, and a supplementary refining reactor, connected in series, for hydrotreatment; and the reaction products are separated to obtain high-qualType: ApplicationFiled: January 10, 2022Publication date: January 11, 2024Inventors: Bin LIU, Yongming CHAI, Chenguang LIU, Yuan PAN, Yichuan LI, Kongyuan ZHANG, Yunqi LIU
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Publication number: 20230416636Abstract: The present invention relates to a pre-hydrotreatment and purification method for waste lubricating oil, the method comprising the following steps: mechanical impurities are removed from waste lubricating oil, and then the oil is subjected to flash distillation to separate free water and a portion of light hydrocarbons; a bottom product of the flash distillation column is mixed with hydrogen and a self-sulfurizing oil-soluble transition metal catalyst, and then enters a slurry bed reactor for pre-hydrotreatment; a gas product obtained by performing separation on a reaction effluent is subjected to adsorption purification and then enters a hydrogen recycle compressor for cyclic use; a liquid product obtained by performing separation on a reaction effluent is subjected to hydrocyclone separation and solvent washing to remove solid residue, and finally a purified lubricating oil component is obtained.Type: ApplicationFiled: January 10, 2022Publication date: December 28, 2023Inventors: Bin LIU, Yongming CHAI, Chenguang LIU, Yuan PAN, Yichuan LI, Kongyuan ZHANG, Yunqi LIU
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Publication number: 20230406772Abstract: The present disclosure provides a Paenibacillus mucilaginosus LT1906 and use thereof, and a microorganism-activated circulating fluidized bed (CFB) fly ash-based cementitious material and a preparation method and use thereof, belonging to the technical field of cementitious materials. The Paenibacillus mucilaginosus LT1906 has a deposit number of CGMCC No. 21337. The strain is capable of dissolving silicate minerals and aluminosilicate minerals in the CFB fly ash to increase dissolution of active SiO2. The strain is used for activating the CFB fly ash-based cementitious material, to ameliorate a large water demand and a low early strength of the cementitious material, thereby improving comprehensive utilization of the CFB fly ash in the field of building materials.Type: ApplicationFiled: May 26, 2022Publication date: December 21, 2023Applicant: Taiyuan University of TechnologyInventors: Haixia Liang, Boahua Tian, Yunqi Liu, Yu Li, Limin Zhai
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Patent number: 11714010Abstract: A reactor temperature measurement system includes a Fiber Bragg Grating sensor array arranged in a body of the reactor for monitoring temperatures at multiple positions in an axial direction of the body to obtain temperature sensing optical signals; and a fiber grating demodulator, connected to the Fiber Bragg Grating sensor array, and used to demodulate the temperature sensing optical signals. A method for preparing a Fiber Bragg Grating includes preparing a Fiber Bragg Grating by using a single-mode fiber and annealing the Fiber Bragg Grating, which includes heating the Fiber Bragg Grating to a temperature above 400° C. and maintaining for 100 to 200 hours.Type: GrantFiled: January 8, 2021Date of Patent: August 1, 2023Assignees: Shanghai Huayi New Material Co., Ltd., Shanghai UniversityInventors: Yunqi Liu, Xiaolong Si, Linfang Wu, Chengbo Mou, Yan Zhuang
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Publication number: 20220416316Abstract: This invention provides nonaqueous electrolyte solutions for lithium batteries. The nonaqueous electrolyte solutions comprise a liquid electrolyte medium; a lithium-containing salt; and at least one oxygen-containing brominated flame retardant.Type: ApplicationFiled: November 18, 2020Publication date: December 29, 2022Inventors: Zhongxin Ge, Tse-Chong Wu, Sascha Joerg Welz, Mark Timothy Bennett, Yunqi Liu
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Publication number: 20220407177Abstract: The present invention discloses an exhaust filter system for a battery pack, including an explosion-proof valve and a filter apparatus. One end of the explosion-proof valve is connected to a battery pack. The other end of the explosion-proof valve is connected to the filter apparatus. The filter apparatus includes an introduction port, a discharge port, a housing, and a filter mechanism. The introduction port and the discharge port are separately disposed at two ends of the housing. The filter mechanism is disposed inside the housing. The filter mechanism is provided with a plurality of filter holes. The present invention has the following beneficial effects: by optimal design of a novel explosion-proof valve and a novel filter apparatus, the applicability of technical solutions of this application is made more extensive. The problem of fire induced by thermal runaway can be satisfactorily solved for both high-capacity batteries and small-capacity batteries.Type: ApplicationFiled: August 27, 2020Publication date: December 22, 2022Inventors: Lilei Zhang, Hongbo Chang, Yechao Tan, Yunqi Liu
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Patent number: 11268005Abstract: This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon or more, and a true crystallization temperature of about 20° F. or less, and comprise water and one or more inorganic bromide salts, with the provisos that when calcium bromide is present, one or more other water-soluble inorganic salts are also present, when lithium bromide is present, calcium bromide is absent, when bismuth(III) bromide is present, one or more other water-soluble inorganic salts are also present, and for a true crystallization temperature of about 10° F. or less, when manganese(II) bromide is present, one or more other water-soluble inorganic salts are also present. Processes for forming these zinc-free aqueous brine compositions are also provided.Type: GrantFiled: February 13, 2020Date of Patent: March 8, 2022Assignee: Albemarle CorporationInventors: Christopher J. Nalepa, Jacobus N. Louwen, Yunqi Liu, Gregory H. Lambeth, Srinivasa S. Godavarthy, Kevin Coppola
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Publication number: 20220026288Abstract: A reactor temperature measurement system includes a Fiber Bragg Grating sensor array arranged in a body of the reactor for monitoring temperatures at multiple positions in an axial direction of the body to obtain temperature sensing optical signals; and a fiber grating demodulator, connected to the Fiber Bragg Grating sensor array, and used to demodulate the temperature sensing optical signals. A method for preparing a Fiber Bragg Grating includes preparing a Fiber Bragg Grating by using a single-mode fiber and annealing the Fiber Bragg Grating, which includes heating the Fiber Bragg Grating to a temperature above 400° C. and maintaining for 100 to 200 hours.Type: ApplicationFiled: January 8, 2021Publication date: January 27, 2022Inventors: Yunqi LIU, Xiaolong SI, Linfang WU, Chengbo MOU, Yan ZHUANG
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Publication number: 20210388169Abstract: The disclosure includes brominated alkenyl alcohols, their use as a flame retardant in polyurethane and polyurethane foams, and polyurethanes containing the brominated alkenyl alcohols. Compositions, methods, and processes are disclosed. The brominated alkenyl alcohols used as flame retardants in polyurethanes can be generally described by Formula (I), the scope of which is disclosed herein.Type: ApplicationFiled: December 20, 2019Publication date: December 16, 2021Inventors: Augusto C. IBAY, Tse-Chong WU, Charles D. VARNADO, JR., Yunqi LIU
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Patent number: 10759985Abstract: This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon to about 15.8 pounds per gallon, and a true crystallization temperature of about 20° F. or less, and comprise water and two or more inorganic bromide salts, where the inorganic bromide salts include calcium bromide and cesium bromide. Processes for forming these zinc-free aqueous brine compositions are also provided.Type: GrantFiled: February 9, 2017Date of Patent: September 1, 2020Assignee: ALBEMARLE CORPORATIONInventors: Yunqi Liu, Gregory H. Lambeth
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Publication number: 20200181471Abstract: This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon or more, and a true crystallization temperature of about 20° F. or less, and comprise water and one or more inorganic bromide salts, with the provisos that when calcium bromide is present, one or more other water-soluble inorganic salts are also present, when lithium bromide is present, calcium bromide is absent, when bismuth(III) bromide is present, one or more other water-soluble inorganic salts are also present, and for a true crystallization temperature of about 10° F. or less, when manganese(II) bromide is present, one or more other water-soluble inorganic salts are also present. Processes for forming these zinc-free aqueous brine compositions are also provided.Type: ApplicationFiled: February 13, 2020Publication date: June 11, 2020Inventors: Christopher J. Nalepa, Jacobus N. Louwen, Yunqi Liu, Gregory H. Lambeth, Srinivasa S. Godavarthy, Kevin Coppola