Patents by Inventor Lidong Chen
Lidong Chen 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: 11963447Abstract: The present invention relates to a method for preparing a thermoelectric thick film. The method includes: determining a brittle-to-ductile transition temperature of a thermoelectric material; rolling the blocky thermoelectric material within a temperature range above the brittle-to-ductile transition temperature and below a melting point; parameters of the rolling being as follows: a linear speed of rollers is 0.01 mm/s to 10 mm/s, preferably 0.1 mm/s to 5 mm/s, and an amount of pressing each time of the rollers is controlled at 0.0005 mm to 0.1 mm, preferably 0.001 mm to 0.05 mm; repeating the rolling until a thermoelectric thick film with a specified thickness is obtained; and annealing the obtained thermoelectric thick film; a temperature of the annealing being 100° C. to 800° C., preferably 300° C. to 500° C., and a duration of the annealing being 10 to 500 hours, preferably 100 to 300 hours.Type: GrantFiled: May 6, 2020Date of Patent: April 16, 2024Assignee: SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCESInventors: Xun Shi, Pengfei Qiu, Zhiqiang Gao, Lidong Chen, Shiqi Yang, Qingyu Yang
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Publication number: 20230380287Abstract: The present invention relates to a method for preparing a thermoelectric thick film. The method includes: determining a brittle-to-ductile transition temperature of a thermoelectric material; rolling the blocky thermoelectric material within a temperature range above the brittle-to-ductile transition temperature and below a melting point; parameters of the rolling being as follows: a linear speed of rollers is 0.01 mm/s to 10 mm/s, preferably 0.1 mm/s to 5 mm/s, and an amount of pressing each time of the rollers is controlled at 0.0005 mm to 0.1 mm, preferably 0.001 mm to 0.05 mm; repeating the rolling until a thermoelectric thick film with a specified thickness is obtained; and annealing the obtained thermoelectric thick film; a temperature of the annealing being 100° C. to 800° C., preferably 300° C. to 500° C., and a duration of the annealing being 10 to 500 hours, preferably 100 to 300 hours.Type: ApplicationFiled: May 6, 2020Publication date: November 23, 2023Inventors: Xun SHI, Pengfei QIU, Zhiqiang GAO, Lidong CHEN, Shiqi YANG, Qingyu YANG
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Patent number: 10884645Abstract: This application discloses a virtual machine (VM) hot migration method, an apparatus, and a storage medium. A method for virtual machine (VM) hot migration is described. Processing circuitry of a first host machine identifies that a memory block in a storage device of the first host machine is allocated to a virtual machine to migrate. Further, the processing circuitry determines whether the memory block is data-containing. When the memory block is data-containing, interface circuitry of the first host machine sends data in the memory block to a second host machine. When the memory block is not data-containing, the memory block is skipped for migration.Type: GrantFiled: April 10, 2018Date of Patent: January 5, 2021Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Lidong Chen, Xing Zhao
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Patent number: 10177295Abstract: The present invention relates to a P-type high-performance thermoelectric material featuring reversible phase change, and a preparation method therefor. The thermoelectric material has a chemical composition of Cu2Se1-xIx, wherein 0<x?0.08. The method comprises: weighing elemental copper metal, elemental selenium metal, and cuprous iodide according to the molar ratio (2?x):(1?x):x, and packaging them in a vacuum; raising the temperature to 1150-1170° C. in stages and performing a melting treatment for 12-24 hours; lowering the temperature to 600-700° C. in stages and then performing an annealing treatment for 5-7 days, the substances being cooled to room temperature in a furnace after the annealing treatment; and performing pressure sintering at 400-500° C.Type: GrantFiled: May 29, 2014Date of Patent: January 8, 2019Assignee: SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCESInventors: Xun Shi, Huili Liu, Lidong Chen
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Publication number: 20180232175Abstract: This application discloses a virtual machine (VM) hot migration method, an apparatus, and a storage medium. A method for virtual machine (VM) hot migration is described. Processing circuitry of a first host machine identifies that a memory block in a storage device of the first host machine is allocated to a virtual machine to migrate. Further, the processing circuitry determines whether the memory block is data-containing. When the memory block is data-containing, interface circuitry of the first host machine sends data in the memory block to a second host machine. When the memory block is not data-containing, the memory block is skipped for migration.Type: ApplicationFiled: April 10, 2018Publication date: August 16, 2018Applicant: TECENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Lidong CHEN, Xing Zhao
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Publication number: 20160126439Abstract: The present invention relates to a P-type high-performance thermoelectric material featuring reversible phase change, and a preparation method therefor. The thermoelectric material has a chemical composition of Cu2Se1-xIx, wherein 0<x?0.08. The method comprises: weighing elemental copper metal, elemental selenium metal, and cuprous iodide according to the molar ratio (2?x):(1?x):x, and packaging them in a vacuum; raising the temperature to 1150-1170° C. in stages and performing a melting treatment for 12-24 hours; lowering the temperature to 600-700° C. in stages and then performing an annealing treatment for 5-7 days, the substances being cooled to room temperature in a furnace after the annealing treatment; and performing pressure sintering at 400-500° C.Type: ApplicationFiled: May 29, 2014Publication date: May 5, 2016Inventors: Xun Shi, Huili Liu, Lidong Chen
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Patent number: 9012760Abstract: A thermoelectric device, a method for fabricating a thermoelectric device and electrode materials applied to the thermoelectric device are provided according to the present invention. The present invention is characterized in arranging thermoelectric material power, interlayer materials and electrode materials in advance according to the structure of thermoelectric device; adopting one-step sintering method to make a process of forming bulked thermoelectric materials and a process of combining with electrodes on the devices to be completed simultaneously; and obtaining a ? shape thermoelectric device finally. Electrode materials related to the present invention comprise binary or ternary alloys or composite materials, which comprise at least a first metal selected from Cu, Ag, Al or Au, and a second metal selected from Mo, W, Zr, Ta, Cr, Nb, V or Ti.Type: GrantFiled: March 25, 2010Date of Patent: April 21, 2015Assignee: Shanghai Institute of Ceramics, Chinese Academy of SciencesInventors: Lidong Chen, Monika Backhaus-Ricoult, Lin He, Xiaoya Li, Yunshan Tang, Xugui Xia, Degang Zhao
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Patent number: 8968589Abstract: A composite material comprises a filled skutterudite matrix of formula (I) IyCo4Sb12 in which (I) represents at least one of Yb, Eu, Ce, La, Nd, Ba and Sr, 0.05?y<1; and GaSb particles within the filled skutterudite matrix, wherein the composite material comprises 0.05-5 mol % GaSb particles. Compared with conventional materials, the composite material exhibits a substantially increased Seebeck coefficient, a slightly decreased overall thermal conductivity, and a substantially increased thermoelectric performance index across the whole temperature zone from the low temperature end to the high temperature end, as well as a greatly enhanced thermoelectric efficiency.Type: GrantFiled: September 23, 2010Date of Patent: March 3, 2015Assignee: Shanghai Institute of Ceramics, Chinese Academy of SciencesInventors: Lidong Chen, Xihong Chen, Lin He, Xiangyang Huang, Zhen Xiong, Wenqing Zhang
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Publication number: 20130323110Abstract: The disclosure relates to a p-type skutterudite material and a method of making the same, comprising providing a p-type skutterudite material having a general formula: IyFe4-xMxSb12/z(J) wherein I represents one or more filling atoms in a skutterudite phase, the total filling amount y satisfying 0.01?y?1; M represents one or more dopant atoms with the doping amount x satisfying 0?x?4; J represents one or more second phases with the molar ratio z satisfying 0?z?0.5; wherein second phase precipitates are dispersed throughout the skutterudite phase.Type: ApplicationFiled: August 10, 2011Publication date: December 5, 2013Inventors: Monika Backhaus-Ricoult, Lidong Chen, Lin He, Xiangyang Huang, Ruiheng Liu, Pengfei Qiu, Jiong Yang, Wenqing Zhang
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Publication number: 20130043439Abstract: A composite material comprises a filled skutterudite matrix of formula (I) IyCo4Sb12 in which (I) represents at least one of Yb, Eu, Ce, La, Nd, Ba and Sr, 0.05?y<1; and GaSb particles within the filled skutterudite matrix, wherein the composite material comprises 0.05-5 mol % GaSb particles. Compared with conventional materials, the composite material exhibits a substantially increased Seebeck coefficient, a slightly decreased overall thermal conductivity, and a substantially increased thermoelectric performance index across the whole temperature zone from the low temperature end to the high temperature end, as well as a greatly enhanced thermoelectric efficiency.Type: ApplicationFiled: September 23, 2010Publication date: February 21, 2013Inventors: Lidong Chen, Xihong Chen, Lin He, Xiangyang Huang, Zhen Xiong, Wenqing Zhang
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Patent number: 8333912Abstract: A process for making a composite material and the composite materials having thermoelectric properties.Type: GrantFiled: July 9, 2010Date of Patent: December 18, 2012Assignees: Corning Incorporated, Shanghai Institute of CeramicsInventors: Lidong Chen, Monika Backhaus-Ricoult, Lin He, Zhen Xiong, Xihong Chen, Xiangyang Huang
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Patent number: 8309839Abstract: A method of improving the thermoelectric figure of merit (ZT) of a high-efficiency thermoelectric material is disclosed. The method includes the addition of fullerene (C60) clusters between the crystal grains of the material. It has been found that the lattice thermal conductivity (?L) of a thermoelectric material decreases with increasing fullerene concentration, due to enhanced phonon-large defect scattering. The resulting power factor (S2/?) decrease of the material is offset by the lattice thermal conductivity reduction, leading to enhanced ZT values at temperatures of between 350 degrees K and 700 degrees K.Type: GrantFiled: April 30, 2004Date of Patent: November 13, 2012Assignees: GM Global Technology Operations LLC, Shanghai Institute of Ceramics, Chinese Academy of SciencesInventors: Lidong Chen, Xun Shi, Jihui Yang, Gregory P. Meisner
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Publication number: 20120180842Abstract: A thermoelectric device, a method for fabricating a thermoelectric device and electrode materials applied to the thermoelectric device are provided according to the present invention. The present invention is characterized in arranging thermoelectric material power, interlayer materials and electrode materials in advance according to the structure of thermoelectric device; adopting one-step sintering method to make a process of forming bulked thermoelectric materials and a process of combining with electrodes on the devices to be completed simultaneously; and obtaining a ? shape thermoelectric device finally. Electrode materials related to the present invention comprise binary or ternary alloys or composite materials, which comprise at least a first metal selected from Cu, Ag, Al or Au, and a second metal selected from Mo, W, Zr, Ta, Cr, Nb, V or Ti.Type: ApplicationFiled: March 25, 2010Publication date: July 19, 2012Inventors: Lidong Chen, Monika Backhaus-Ricoult, Lin He, Xiaoya Li, Yunshan Tang, Xugui Xia, Degang Zhao
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Publication number: 20120164416Abstract: A coating for thermoelectric materials includes a thermoelectric layer having a thermoelectric material, a metal coating of one or more layers forming a surface in contact with the thermoelectric layer and an opposing surface, and a metal oxide coating of one or more layers including metal oxides, wherein the metal oxide coating forms a surface in contact with the opposing surface. A device comprises the material and a process for fabricating the same.Type: ApplicationFiled: July 27, 2010Publication date: June 28, 2012Inventors: Lin He, Lidong Chen, Xiangyang Huang, Xiaoya Li, Xugui Xia
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Patent number: 8198116Abstract: A method for fabricating thermoelectric device is provided. The method comprises placing a first electrode in a die, forming a first interlayer on an upper surface of the first electrode; positioning a separating plate on an upper surface of the first interlayer to divide an inner space of the die into a plurality of cells, and depositing a first thermoelectric material on the first interlayer within a first fraction of the cells, and depositing a second thermoelectric material on the first interlayer within a second fraction of the cells, sintering the die contents, and removing the separating plate after sintering to obtain a ? shaped thermoelectric device.Type: GrantFiled: December 22, 2009Date of Patent: June 12, 2012Assignees: Corning Incorporated, Shanghai Institute of CeramicsInventors: Lidong Chen, Monika Backhaus-Ricoult, Lin He, Xiaoya Li, Xugui Xia, Degang Zhao
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Patent number: 8097802Abstract: A thermoelectric material includes a multiple transition metal-doped type I clathrate crystal structure having the formula A8TMy11TMy22 . . . TMynnMzX46-y1-y2- . . . -yn-z. In the formula, A is selected from the group consisting of barium, strontium, and europium; X is selected from the group consisting of silicon, germanium, and tin; M is selected from the group consisting of aluminum, gallium, and indium; TM1, TM2, and TMn are independently selected from the group consisting of 3d, 4d, and 5d transition metals; and y1, y2, yn and Z are actual compositions of TM1, TM2, TMn, and M, respectively. The actual compositions are based upon nominal compositions derived from the following equation: z=8·qA?|?q1|y1?|?q2|y2? . . . ?|?qn|yn, wherein qA is a charge state of A, and wherein ?q1, ?q2, ?qn are, respectively, the nominal charge state of the first, second, and n-th TM.Type: GrantFiled: May 1, 2009Date of Patent: January 17, 2012Assignee: GM Global Technology Operations LLCInventors: Jihui Yang, Xun Shi, Shengqiang Bai, Wenqing Zhang, Lidong Chen, Jiong Yang
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Publication number: 20110218109Abstract: A clathrate compound of formula (I): M8AxBy-x (I) wherein: M is an alkaline earth metal, a rare earth metal, an alkali metal, Cd, or a combination thereof, A is Ga, Al, In, Zn or a combination thereof; B is Ge, Si, Sn, Ni or a combination thereof; and 12?x?16, 40?y?43, x and y each is or is not an integer. Embodiments of the invention also include method of making and using the clathrate compound.Type: ApplicationFiled: November 4, 2009Publication date: September 8, 2011Inventors: Shengqiang Bai, Lidong Chen, Lin He, Li Wang, Wenbin Zhang, Yanfei Zhou
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Publication number: 20110006249Abstract: A process for making a composite material and the composite materials having thermoelectric propertiesType: ApplicationFiled: July 9, 2010Publication date: January 13, 2011Inventors: Lidong Chen, Monika Backhaus-Ricoult, Lin He, Zhen Xiong, Xihong Chen, Xiangyang Huang
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Publication number: 20100275963Abstract: A thermoelectric material includes a multiple transition metal-doped type I clathrate crystal structure having the formula A8TMy11TMy22 . . . TMynnMzX46-y1-y2- . . . -yn-z. In the formula, A is selected from the group consisting of barium, strontium, and europium; X is selected from the group consisting of silicon, germanium, and tin; M is selected from the group consisting of aluminum, gallium, and indium; TM1, TM2, and TMn are independently selected from the group consisting of 3d, 4d, and 5d transition metals; and y1, y2, yn and Z are actual compositions of TM1, TM2, TMn, and M, respectively. The actual compositions are based upon nominal compositions derived from the following equation: z=8·qA?|?q1|y1?|?q2|y2? . . . ?|?qn|yn, wherein qA is a charge state of A, and wherein ?q1, ?q2, ?qn are, respectively, the nominal charge state of the first, second, and n-th TM.Type: ApplicationFiled: May 1, 2009Publication date: November 4, 2010Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCESInventors: Jihui Yang, Xun Shi, Shengqiang Bai, Wenqing Zhang, Lidong Chen, Jiong Yang
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Publication number: 20100167444Abstract: A method for fabricating thermoelectric device is provided. The method comprises placing a first electrode in a die, forming a first interlayer on an upper surface of the first electrode; positioning a separating plate on an upper surface of the first interlayer to divide an inner space of the die into a plurality of cells, and depositing a first thermoelectric material on the first interlayer within a first fraction of the cells, and depositing a second thermoelectric material on the first interlayer within a second fraction of the cells, sintering the die contents, and removing the separating plate after sintering to obtain a ? shaped thermoelectric device.Type: ApplicationFiled: December 22, 2009Publication date: July 1, 2010Inventors: Lidong Chen, Monika Backhaus-Ricoult, Lin He, Xiaoya Li, Xugui Xia, Degang Zhao