Having Particular Thermoelectric Composition Patents (Class 136/236.1)
  • Patent number: 10416140
    Abstract: A gas sensor comprises a metal oxide sensing patch, a heater for heating the sensing patch, electrodes for measuring the conductivity of the sensing patch and an evaluation unit for generating a resulting parameter indicative of at least one analyte. Further, a temperature sensor is provided for measuring the temperature at the location of the sensing patch. The evaluation unit is adapted to derive a first parameter indicative of the conductivity of the sensing patch and a second parameter indicative of the heating power required to maintain a desired temperature of the sensing patch or indicative of the deviation of the temperature at the sensing patch from the desired temperature. The evaluation unit further combines the first and second parameters for evaluating the resulting parameter, thereby using the sensing patch not only as a chemiresistor but also as a pellistor-type measurement device.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: September 17, 2019
    Assignee: Sensirion AG
    Inventor: Marc Von Waldkirch
  • Patent number: 10283690
    Abstract: A method of manufacturing a thermoelectric material comprising: ball-milling a compound comprising a plurality of components, the first component M comprising at least one of a rare earth metal, an actinide, an alkaline-earth metal, and an alkali metal, the second component T comprising a metal of subgroup VIII, and the third component X comprises a pnictogen atom. The compound may be ball-milled for up to 5 hours, and then thermo-mechanically processed by, for example, hot pressing the compound for less than two hours. Subsequent to the thermo-mechanical processing, the compound comprises a single filled skutterudite phase with a dimensionless figure of merit (ZT) above 1.0 and the compound has a composition following a formula of MT4X12.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: May 7, 2019
    Assignees: UNIVERSITY OF HOUSTON SYSTEM, MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Qing Jie, Zhifeng Ren, Gang Chen
  • Patent number: 10103312
    Abstract: A thermoelectric conversion device including an n-type thermoelectric converter, a p-type thermoelectric converter, a high temperature-side electrode with which one end of the n-type thermoelectric converter and one end of the p-type thermoelectric converter are put into contact, a first low temperature-side electrode in contact with another end of the n-type thermoelectric converter, and a second low temperature-side electrode in contact with another end of the p-type thermoelectric converter, wherein in the n-type thermoelectric converter, the side in contact with the high temperature-side electrode is composed of a carrier generation semiconductor containing Mg2Sn, and in the n-type thermoelectric converter, the side in contact with the first low temperature-side electrode is composed of a carrier transfer semiconductor containing Mg2Si1-xSnx, wherein 0.6?x?0.7, and a first n-type dopant.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: October 16, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Suto, Hidenari Yamamoto
  • Patent number: 10076745
    Abstract: A method and apparatus for producing core-shell type metal nanoparticles which are excellent in productivity are provided, in particular, the present invention provides a method of production of core-shell type metal nanoparticles including (a) a step of introducing a solution of a salt of a first metal to a first flow path of a flow type reaction apparatus and applying plasma to the solution of the salt of the first metal in the first flow path to obtain a solution which contains metal nanoparticles of the first metal and (b) a step of introducing a solution of a salt of a second metal to a second flow path of the flow type reaction apparatus, making it merge with the solution which contains metal nanoparticles of the first metal to obtain a mixed solution, and applying plasma to the mixed solution to cover the metal nanoparticles of the first metal by the second metal.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: September 18, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Masao Watanabe, Mamoru Ishikiriyama, Youhei Kinoshita, Nagahiro Saito, Tomohito Sudare
  • Patent number: 10074789
    Abstract: Provided herein are a thermoelectric material and a method for preparing the same, wherein the thermoelectric material has excellent thermoelectric performance and high mechanical properties (in particular, fracture toughness), and thus, when the thermoelectric material is applied to a thermoelectric module, the thermoelectric module has excellent performance and efficiency and a long lifespan.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: September 11, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-Academic Cooperation Foundation,Yonsei University
    Inventors: Byung Wook Kim, Jong Kook Lee, Han Saem Lee, In Woong Lyo, Jin Woo Kwak, Woo Young Lee, Gwan Sik Kim, Hwi Jong Lee
  • Patent number: 10008653
    Abstract: A thermoelectric half-Heusler material comprising niobium (Nb), iron (Fe) and antimony (Sb) wherein the material comprises grains having a mean grain size less than one micron. A method of making a nanocomposite half-Heusler thermoelectric material includes melting constituent elements of the thermoelectric material to form an alloy of the thermoelectric material, comminuting (e.g., ball milling) the alloy of the thermoelectric material into nanometer scale mean size particles, and consolidating the nanometer size particles to form the half-Heusler thermoelectric material comprising at least niobium (Nb), iron (Fe) and antimony (Sb) and having grains with a mean grain size less than one micron.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: June 26, 2018
    Assignees: UNIVERSITY OF HOUSTON SYSTEM, U.S. DEPARTMENT OF ENERGY
    Inventors: Giri Joshi, Jian Yang, Michael Engber, Tej Pantha, Martin Cleary, Zhifeng Ren, Ran He, Boris Kozinsky
  • Patent number: 9997692
    Abstract: Disclosed is an article having: a porous thermally insulating material, an electrically conductive coating on the thermally insulating material, and a thermoelectric coating on the electrically conductive coating. Also disclosed is a method of forming an article by: providing a porous thermally insulating material, coating an electrically conductive coating on the thermally insulating material, and coating a thermoelectric coating on the electrically conductive coating. The articles may be useful in thermoelectric devices.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: June 12, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Debra R Rolison
  • Patent number: 9937830
    Abstract: A system for detecting hot car seat situations, manually cooling the child in those situations, and facilitating one or more alert notifications is disclosed. An apparatus receives sensor data that it uses to detect the presence of a child in a car seat in a vehicle. Multiple sensors provide added security against false positives. When a child is detected, the apparatus activates a cooling flow of air towards the child if the temperature rises above a threshold. The apparatus waits until the vehicle is not moving and off before initiating notifications to one or more subscribing devices. Once off, and once the temperature of the child further rises or has the air flow on for a period of time, the apparatus sends a notification to the subscribing devices. If the child is not removed within a set period of time, then emergency responders are notified.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: April 10, 2018
    Inventor: Bishop Benjamin Curry, V
  • Patent number: 9891114
    Abstract: A flexible laminated thermocouple is provided and includes layers of insulation material. At least one of the layers has a longitudinal axis and includes thermocouple conductors formed of differing electrically conductive materials. Each of the thermocouple conductors includes a main section extending along the longitudinal axis and a flange extending transversely to the longitudinal axis. The main sections are insulated from one another and the thermocouple conductors are insulated from thermocouple conductors of another layer.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 13, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Eric Karlen, John Horowy, William Louis Wentland, Debabrata Pal
  • Patent number: 9847470
    Abstract: A thermoelectric material is provided. The material can be a grain boundary modified nanocomposite that has a plurality of bismuth antimony telluride matrix grains and a plurality of zinc oxide nanoparticles within the plurality of bismuth antimony telluride matrix grains. In addition, the material has zinc antimony modified grain boundaries between the plurality of bismuth antimony telluride matrix grains.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: December 19, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Michael Paul Rowe, Li Qin Zhou, Minjuan Zhang, Debasish Banerjee
  • Patent number: 9761779
    Abstract: A thermoelectric conversion material expressed by a chemical formula X3T3-yT?ySb4 (0.025?y?0.5), wherein the X includes one or more elements selected from Zr and Hf, the T includes one or more elements selected from Ni, Pd, and Pt, while including at least Ni, and the T? includes one or more elements selected from Co, Rh, and Ir.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: September 12, 2017
    Assignee: PANASONIC CORPORATION
    Inventors: Hiromasa Tamaki, Tsutomu Kanno, Akihiro Sakai, Kohei Takahashi, Hideo Kusada, Yuka Yamada
  • Patent number: 9722163
    Abstract: A thermoelectric power generation device is disclosed using one or more mechanically compliant and thermally and electrically conductive layers at the thermoelectric material interfaces to accommodate high temperature differentials and stresses induced thereby. The compliant material may be metal foam or metal graphite composite (e.g. using nickel) and is particularly beneficial in high temperature thermoelectric generators employing Zintl thermoelectric materials. The compliant material may be disposed between the thermoelectric segments of the device or between a thermoelectric segment and the hot or cold side interconnect of the device.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: August 1, 2017
    Assignee: California Institute of Technology
    Inventors: Samad A. Firdosy, Billy Chun-Yip Li, Vilupanur A. Ravi, Jean-Pierre Fleurial, Thierry Caillat, Harut Anjunyan
  • Patent number: 9705061
    Abstract: A thermoelectric conversion module includes a pair of substrates, electrodes formed on the facing surfaces of a pair of the electrodes, a thermoelectric element disposed between the electrodes, and a joining layer that joins the electrodes and the thermoelectric element, in which the thickness of the joining layer is 30 ?m or more, and is formed by sintering paste including metal particles smaller than 100 nm.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: July 11, 2017
    Assignee: Yamaha Corporation
    Inventor: Takahiro Hayashi
  • Patent number: 9640746
    Abstract: The present invention provides a composite thermoelectric material. The composite thermoelectric material can include a semiconductor material comprising a rare earth metal. The atomic percent of the rare earth metal in the semiconductor material can be at least about 20%. The composite thermoelectric material can further include a metal forming metallic inclusions distributed throughout the semiconductor material. The present invention also provides a method of forming this composite thermoelectric material.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: May 2, 2017
    Assignee: California Institute of Technology
    Inventors: James M. Ma, Sabah K. Bux, Jean-Pierre Fleurial, Vilupanur A. Ravi, Samad A. Firdosy, Kurt Star, Richard B. Kaner
  • Patent number: 9463080
    Abstract: The invention relates to a firing furnace for a tooth replacement or tooth prosthesis, with a firing chamber, at least one heating element for heating the firing chamber, a control unit for controlling the operation of the firing furnace, and a housing at least partially surrounding the firing chamber, wherein the firing furnace comprises at least one thermoelectric element for utilizing the waste heat generated by the firing furnace.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: October 11, 2016
    Assignee: DEKEMA DENTAL-KREMIKÖFEN
    Inventor: Stephan Miller
  • Patent number: 9461227
    Abstract: A thermoelectric material including a thermoelectric matrix; and nano-inclusions in the thermoelectric matrix, the nano-inclusions having an average particle diameter of about 10 nanometers to about 30 nanometers.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: October 4, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-il Kim, Kyu-hyoung Lee
  • Patent number: 9437796
    Abstract: A thermoelectric material and a thermoelectric converter using this material. The thermoelectric material has a first component including a semiconductor material and a second component including a rare earth material included in the first component to thereby increase a figure of merit of a composite of the semiconductor material and the rare earth material relative to a figure of merit of the semiconductor material. The thermoelectric converter has a p-type thermoelectric material and a n-type thermoelectric material. At least one of the p-type thermoelectric material and the n-type thermoelectric material includes a rare earth material in at least one of the p-type thermoelectric material or the n-type thermoelectric material.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 6, 2016
    Assignees: RESEARCH TRIANGLE INSTITUTE, U.S. DEPARTMENT OF ENERGY
    Inventors: Rama Venkatasubramanian, Bruce Allen Cook, Evgenii M. Levin, Joel Lee Harringa
  • Patent number: 9373770
    Abstract: An industrial thermoelectric generation assembly and method are provided. A plurality of thermoelectric generation elements is provided. Each element has a first side, a second side opposite the first side, and a lateral surface. A thermally insulative material surrounds the lateral surface of each thermoelectric element. The first side of each thermoelectric element is disposed to contact a process heat source, and the second side is configured to be exposed to an ambient environment. At least two of the plurality of thermoelectric generation elements are wired in series. The thermoelectric generation elements, being good thermal insulators, provide good thermal insulation to the process. Withholding heat within the process (which is desired), is converted to electricity.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: June 21, 2016
    Assignee: Rosemount Inc.
    Inventor: Swapan Chakraborty
  • Patent number: 9293680
    Abstract: Cartridge-based thermoelectric assemblies and systems are provided which include at least one shunt configured to extend around a conduit, a plurality of thermoelectric elements in thermal communication and in electrical communication with the at least one shunt with at least a portion of the at least one shunt sandwiched between the at least one first thermoelectric element and the at least one second thermoelectric element. The thermoelectric elements are electrically isolated from the conduit. The thermoelectric assemblies and systems further include at least one heat exchanger in thermal communication with the at least one shunt and configured to be in thermal communication with a second fluid.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: March 22, 2016
    Assignee: Gentherm Incorporated
    Inventors: Eric Poliquin, Douglas T. Crane, Vladimir Jovovic, Joseph Dean, Dmitri Kossakovski, John Walter LaGrandeur
  • Patent number: 9276189
    Abstract: A thermoelectric material has a Heusler alloy type crystal structure and is based on an Fe2VAl basic structure having a total number of valence electrons of 24 per chemical formula. The thermoelectric material has a structure expressed by General Formula Fe2V1?ZAl1+Z, where 0.03?z?0.12, or General Formula Fe2V1?ZAl1+Z, where ?0.12?z??0.03, by controlling its chemical compositional ratio. The former acts as a p-type material and has a Seebeck coefficient whose absolute value reaches a peak at a temperature of 400 K or higher; and the latter acts as an n-type material and has a Seebeck coefficient whose absolute value reaches a peak at a temperature of 310 K or higher.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: March 1, 2016
    Assignee: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Yoichi Nishino, Suguru Tanaka
  • Patent number: 9269881
    Abstract: Significant phonon migration restraint is achieved within a relatively homogeneous polycrystalline doped semiconductor bulk by purposely creating in the crystal lattice of the semiconductor hydrocarbon bonds with the semiconductor, typically Si or Ge, constituting effective organic group substituents of semiconductor atoms in the crystalline domains. An important enhancement of the factor of merit Z of such a modified electrically conductive doped semiconductor is obtained without resorting to nanometric cross sectional dimensions in order to rely on surface scattering eventually enhanced by making the surface highly irregular and/or creating nanocavities within the bulk of the conductive material. A determinant scattering of phonons migrating under the influence and in the direction of a temperature gradient in the homogeneous semiconductor takes place at the organic groups substituents in the crystalline doped semiconductor bulk.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: February 23, 2016
    Assignee: Consorzio Delta Ti Research
    Inventors: Dario Narducci, Gianfranco Cerofolini, Elena Lonati
  • Patent number: 9082895
    Abstract: Provided are a thermoelectric device and a method of manufacturing the same. The method may include forming nanowires on a substrate, forming a barrier layer on the nanowires, forming a bulk layer on the barrier layer, forming a lower electrode under the substrate, and forming an upper electrode on the bulk layer.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: July 14, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Dong Suk Jun, Moon Gyu Jang, Won Chul Choi
  • Patent number: 9079781
    Abstract: Disclosed is a thermoelectric conversion material that exhibits a high thermoelectric conversion properties. The thermoelectric conversion material comprises zinc oxide and is represented by formula (I): Zn(1-x-y)AlxYyO??(I) wherein Zn represents zinc; Al represents aluminum; Y represents yttrium; and x>0, y>0, and x+y<0.1, and has a structure in which at least a part of aluminum and yttrium are present in crystal lattices of and/or interstitial site of crystal lattices of zinc oxide.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: July 14, 2015
    Assignee: Toto Ltd.
    Inventors: Hiromasa Tokudome, Naoya Takeuchi
  • Patent number: 9070825
    Abstract: A thermoelectric conversion module includes a pair of substrates, electrodes formed on the facing surfaces of a pair of the electrodes, a thermoelectric element disposed between the electrodes, and a joining layer that joins the electrodes and the thermoelectric element, in which the thickness of the joining layer is 30 ?m or more, and is formed by sintering paste including metal particles smaller than 100 nm.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: June 30, 2015
    Assignee: Yamaha Corporation
    Inventor: Takahiro Hayashi
  • Patent number: 9059363
    Abstract: A thermoelectric material having a high ZT value is provided. In general, the thermoelectric material is a thin film thermoelectric material that includes a heterostructure formed of IV-VI semiconductor materials, where the heterostructure includes at least one potential barrier layer. In one embodiment, the heterostructure is formed of IV-VI semiconductor materials and includes a first matrix material layer, a potential barrier material layer adjacent to the first matrix material layer and formed of a wide bandgap material, and a second matrix material layer that is adjacent the potential barrier material layer opposite the first matrix material layer. A thickness of the potential barrier layer is approximately equal to a mean free path distance for charge carriers at a desired temperature.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: June 16, 2015
    Assignee: The Board of Regents of the University of Oklahoma
    Inventor: Patrick John McCann
  • Patent number: 9048380
    Abstract: A thermoelectric conversion material having a novel composition is provided. The thermoelectric conversion material comprises a first dielectric material layer, a second dielectric material layer, and an electron localization layer that is present between the first dielectric material layer and the second dielectric material layer and that has a thickness of 1 nm.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: June 2, 2015
    Assignees: Japan Science and Technology Agency, National University Corporation Nagoya University
    Inventors: Hideo Hosono, Masahiro Hirano, Hiromichi Ohta, Kunihito Koumoto
  • Publication number: 20150114441
    Abstract: A thermoelectric material including a thermoelectric matrix; and nano-inclusions in the thermoelectric matrix, the nano-inclusions having an average particle diameter of about 10 nanometers to about 30 nanometers.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 30, 2015
    Inventors: Sang-il KIM, Kyu-hyoung LEE
  • Patent number: 8969705
    Abstract: The invention describes a novel thermoelectric composite material containing electrically conductive polymeric fibrils in a polymer matrix with a high thermoelectric coefficient. The invention also includes a thermoelectric device using the composite. The invention also includes a thermoelectric device containing a thermoelectric layers and a thermoelectric device in which a thermal barrier isolates a thermoelectric layer from a structurally supporting substrate. The thermoelectric devices can be used to generate electricity or to control temperature.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: March 3, 2015
    Assignee: Battelle Memorial Institute
    Inventor: John S. Laudo
  • Patent number: 8957299
    Abstract: A thermoelectric material including a thermoelectric matrix; and nano-inclusions in the thermoelectric matrix, the nano-inclusions having an average particle diameter of about 10 nanometers to about 30 nanometers.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: February 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-il Kim, Kyu-hyoung Lee
  • Patent number: 8957298
    Abstract: Systems and methods are operable to generate electric power from heat. Embodiments employ one or more direct thermal electric converters that have at least a first recombination material having a first recombination rate, a second recombination material adjacent to the first recombination material and having a second recombination rate, wherein the second recombination rate is different from the first recombination rate, and a third recombination material adjacent to the second recombination material and having a third recombination rate substantially the same as the first recombination rate. Application of heat generates at least first charge carriers that migrate between the first recombination material and the second recombination material, and generates at least second charge carriers that migrate between the third recombination material and the second recombination material. The migration of the first charge carriers and the migration of the second charge carriers generates an electrical current.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: February 17, 2015
    Inventor: Peter Milon Orem
  • Patent number: 8940995
    Abstract: A thermoelectric device is provided. The thermoelectric device includes first and second electrodes, a first leg, a second leg, and a common electrode. The first leg is disposed on the first electrode and includes one or more first semiconductor pattern and one or more first barrier patterns. The second leg is disposed on the second electrode and includes one or more second semiconductor pattern and one or more second barrier patterns. The common electrode is disposed on the first leg and the second leg. Herein, the first barrier pattern has a lower thermal conductivity than the first semiconductor pattern, and the second barrier pattern has a lower thermal conductivity than the second semiconductor pattern. The first/second barrier pattern has a higher electric conductivity than the first/second semiconductor pattern. The first/second barrier pattern forms an ohmic contact with the first/second semiconductor pattern.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: January 27, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young-Sam Park, Moon-Gyu Jang, Taehyoung Zyung, Younghoon Hyun, Myungsim Jun
  • Publication number: 20150013741
    Abstract: The present invention provides a thermoelectric conversion material of which the structure is controlled to have nano-order microscopic pores and which has a low thermal conductivity and has an improved thermoelectric performance index. In the thermoelectric conversion material having a thermoelectric semiconductor layer formed on a block copolymer substrate that comprises a block copolymer having microscopic pores, wherein the block copolymer comprises a polymer unit (A) formed of a monomer capable of forming a homopolymer having a glass transition temperature of 50° C. or higher, and a polymer unit (B) formed of a conjugated dienic polymer.
    Type: Application
    Filed: February 19, 2013
    Publication date: January 15, 2015
    Applicants: KYUSHU INSTITUTE OF TECHNOLOGY, LINTEC CORPORATION
    Inventors: Tsuyoshi Mutou, Koji Miyazaki, Yoshika Hatasako, Kunihisa Kato
  • Patent number: 8933318
    Abstract: A thermoelectric material including a compound represented by Formula 1 below: (R1-aR?a)(T1-bT?b)3±y??Formula 1 wherein R and R? are different from each other, and each includes at least one element selected from a rare-earth element and a transition metal, T and T? are different from each other, and each includes at least one element selected from sulfur (S), selenium (Se), tellurium (Te), phosphorus (P), arsenic (As), antimony (Sb), bismuth (Bi), carbon (C), silicon (Si), germanium (Ge), tin (Sn), boron (B), aluminum (Al), gallium (Ga), and indium (In), 0?a?1, 0?b?1, and 0?y<1.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: January 13, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-soo Rhyee, Sang-mock Lee
  • Publication number: 20150010787
    Abstract: Disclosed is an internal current collection structure of a tubular thermal to electric converting cell including an internal electrode, a solid electrolyte and an external electrode. The internal current collection structure includes: a first current collector which closely contacts with the internal electrode of the tubular thermal to electric converting cell; a second current collector which fixes the first porous current collector to the inside of the tubular thermal to electric converting cell and causes the first current collector to be in close contact with the internal electrode; and a lead wire which is a conductive medium and is located between the first current collector and the second current collector.
    Type: Application
    Filed: August 8, 2013
    Publication date: January 8, 2015
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Sun-Dong KIM, Sang-Kuk Woo, Se-Young Kim, Jong-Hoon Joo, In-Sub Han, Doo-Won Seo, Min-Soo Suh
  • Publication number: 20140352750
    Abstract: A composite thermoelectric material comprising a matrix comprising a thermoelectric semiconductor; and a nanoscale heterophase dispersed in the matrix, wherein the thermoelectric semiconductor comprises an element belonging to Group 15 of the Periodic Table of the Elements, and the heterophase comprises a transition metal element.
    Type: Application
    Filed: February 20, 2014
    Publication date: December 4, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Weon-ho SHIN, Jong wook ROH, Kyu-hyoung LEE, Dae-jin YANG, Sang-il KIM
  • Publication number: 20140345661
    Abstract: A thermoelectric composite includes a plurality of particles comprising a crosslinked polymer having a heat deflection temperature greater than or equal to 200° F. and a segregated network comprising a first filler material which is disposed between the particles to produce a thermoelectric response in response to application of a voltage difference or temperature difference across the thermoelectric composite. The first filler material includes a carbon material, a metal, a metal disposed on a carbon material, or a combination thereof. A process for preparing a thermoelectric article includes combining a first filler material and a plurality of particles comprising a polymer to form a composition and molding the composition to form a thermoelectric article, wherein the thermoelectric article is configured to produce a thermoelectric response in response to application of a voltage difference or temperature difference across the article.
    Type: Application
    Filed: May 21, 2013
    Publication date: November 27, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Sayantan Roy, David Peter Gerrard, Oleksandr V. Kuznetsov
  • Patent number: 8883047
    Abstract: Compositions related to skutterudite-based thermoelectric materials are disclosed. Such compositions can result in materials that have enhanced ZT values relative to one or more bulk materials from which the compositions are derived. Thermoelectric materials such as n-type and p-type skutterudites with high thermoelectric figures-of-merit can include materials with filler atoms and/or materials formed by compacting particles (e.g., nanoparticles) into a material with a plurality of grains each having a portion having a skutterudite-based structure. Methods of forming thermoelectric skutterudites, which can include the use of hot press processes to consolidate particles, are also disclosed. The particles to be consolidated can be derived from (e.g., grinded from), skutterudite-based bulk materials, elemental materials, other non-Skutterudite-based materials, or combinations of such materials.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: November 11, 2014
    Assignees: Massachusetts Institute of Technology, Trustees of Boston College
    Inventors: Zhifeng Ren, Jian Yang, Xiao Yan, Qinyu He, Gang Chen, Qing Hao
  • Publication number: 20140318592
    Abstract: A method for enhancement of thermoelectric properties through polarization engineering. Internal electric fields created within a material are used to spatially confine electrons for the purpose of enhancing thermoelectric properties. Electric fields can be induced within a material by the presence of bound charges at interfaces. A combination of spontaneous and piezoelectric polarization can induce this interfacial charge. The fields created by these bound charges have the effect of confining charge carriers near these interfaces. By confining charge carriers to a channel where scattering centers can be deliberately excluded the electron mobility can be enhanced, thus enhancing thermoelectric power factor. Simultaneously, phonons will not be affected by the fields and thus will be subject to the many scattering centers present in the majority of the structure. This allows for simultaneous enhancement of power factor and reduction of thermal conductivity, thus improving the thermoelectric figure of merit, ZT.
    Type: Application
    Filed: December 14, 2012
    Publication date: October 30, 2014
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Alexander Sztein, John E. Bowers, Steven P. DenBaars
  • Patent number: 8865996
    Abstract: Continuous ceramic (e.g., silicon carbide) nanofibers (502, 602, 604, 606, 608, 702, 704, 1102, 1104) which are optionally p or n type doped are manufactured by electrospinning a polymeric ceramic precursor to produce fine strands of polymeric ceramic precursor which are then pyrolized. The ceramic nanofibers may be used in a variety of applications not limited to reinforced composite materials (400), thermoelectric generators (600, 700) and high temperature particulate filters (1200).
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: October 21, 2014
    Assignee: eM-TECH
    Inventors: Pawel Czubarow, Philip Premysler
  • Patent number: 8865997
    Abstract: The invention provides a thermoelectric material, a method for fabricating the same, and a thermoelectric module employing the same. The thermoelectric material is composed of Zn4Sb(3-x)Rex, wherein 0<x<0.02. Further, the thermoelectric module includes a first electrode, and a thermoelectric element, wherein the thermoelectric element includes the thermoelectric material composed of Zn4Sb(3-x)Rex and contacts to the first electrode; and a second electrode contacting to the thermoelectric element, wherein the first and second electrodes are separated by the thermoelectric element.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: October 21, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Chia-Chan Hsu, Chun-Mu Chen, Shan-Haw Chiou
  • Patent number: 8841540
    Abstract: In accordance with one embodiment of the present disclosure, a thermoelectric device includes a plurality of thermoelectric elements that each include a diffusion barrier. The diffusion barrier includes a refractory metal. The thermoelectric device also includes a plurality of conductors coupled to the plurality of thermoelectric elements. The plurality of conductors include aluminum. In addition, the thermoelectric device includes at least one plate coupled to the plurality of thermoelectric elements using a braze. The braze includes aluminum.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: September 23, 2014
    Assignee: Marlow Industries, Inc.
    Inventors: Joshua E. Moczygemba, James L. Bierschenk, Jeffrey W. Sharp
  • Patent number: 8840799
    Abstract: A thermoelectric material that comprises a binary main group matrix material and nano-particles and/or nano-inclusions of metal oxide dispersed therein, and has electrical properties of ternary doped materials. A process for making the thermoelectric material that includes reacting a reduced metal precursor with an oxidized metal precursor in the presence of nanoparticles.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: September 23, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Michael P. Rowe, Li Qin Zhou
  • Patent number: 8834736
    Abstract: A thermoelectric material that comprises a ternary main group matrix material and nano-particles and/or nano-inclusions of a Group 2 or Group 12 metal oxide dispersed therein. A process for making the thermoelectric material that includes reacting a reduced metal precursor with an oxidized metal precursor in the presence of nanoparticles.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: September 16, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Michael Paul Rowe, Li Qin Zhou
  • Patent number: 8828277
    Abstract: A method of producing a nanocomposite thermoelectric conversion material includes preparing a solution that contains salts of a plurality of first elements constituting a thermoelectric conversion material, and a salt of a second element that has a redox potential lower than redox potentials of the first elements; precipitating the first elements, thereby producing a matrix-precursor that is a precursor of a matrix made of the thermoelectric conversion material, by adding a reducing agent to the solution; precipitating the second element in the matrix-precursor, thereby producing slurry containing the first elements and the second element, by further adding the reducing agent to the solution; and alloying the plurality of the first elements, thereby producing the matrix (70) made of the thermoelectric conversion material, and producing nano-sized phonon-scattering particles (80) including the second element, which are dispersed in the matrix (70), by filtering and washing the slurry, and then, heat-treating t
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: September 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Junya Murai, Takuji Kita
  • Patent number: 8829327
    Abstract: A thermoelectric composite material includes a carbon nanotube structure and an electrically conductive polymer layer. The carbon nanotube structure includes a plurality of carbon nanotubes and spaces. The electrically conductive polymer layer is coated on surfaces of the carbon nanotubes.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: September 9, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chui-Zhou Meng, Chang-Hong Liu, Shou-Shan Fan
  • Patent number: 8823316
    Abstract: A system for harvesting electric energy from thermal energy includes energy conversion assemblies that can be distributed about a conduit through which a heated effluent flows. Each energy conversion assembly includes two heat sinks, a thermoelectric cell sandwiched between the two heat sinks, and a thermal insulating gasket surrounding the thermoelectric cell and separating the two heat sinks. Circuit wiring electrically connects to each thermoelectric cell where the energy conversion assemblies are electrically connected to one another in parallel. An electric power storage device is coupled to the circuit wiring.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: September 2, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert C. Woodall, Robert G. Adams
  • Patent number: 8815125
    Abstract: A method of manufacturing a resistor paste comprising steps of: (a) preparing a basic resistor paste comprising, (i) a conductive powder, (ii) a first glass frit, and (iii) a first organic medium; and (b) preparing a glass paste as a TCR driver comprising, (iv) a second glass frit comprising manganese oxide, and (v) a second organic medium, (c) adding the glass paste to the basic resistor paste to obtain a resistor paste with a desired TCR.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: August 26, 2014
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Yuko Ogata
  • Patent number: 8802964
    Abstract: A method using an apparatus includes the following steps. Providing a thermoelectric composite material, and establishing a sufficient temperature gradient in the thermoelectric composite material to create a voltage. The thermoelectric composite material includes a carbon nanotube structure comprising a plurality of carbon nanotubes and a plurality of spaces defined by and between the carbon nanotubes, and an electrically conductive polymer layer coated on the carbon nanotube structure.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: August 12, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chui-Zhou Meng, Chang-Hong Liu, Shou-Shan Fan
  • Patent number: 8795545
    Abstract: A thermoelectric material and a method of making a thermoelectric material are provided. In certain embodiments, the thermoelectric material comprises at least 10 volume percent porosity. In some embodiments, the thermoelectric material has a zT greater than about 1.2 at a temperature of about 375 K. In some embodiments, the thermoelectric material comprises a topological thermoelectric material. In some embodiments, the thermoelectric material comprises a general composition of (Bi1-xSbx)u(Te1-ySey)w, wherein 0?x?1, 0?y?1, 1.8?u?2.2, 2.8?w?3.2. In further embodiments, the thermoelectric material includes a compound having at least one group IV element and at least one group VI element. In certain embodiments, the method includes providing a powder comprising a thermoelectric composition, pressing the powder, and sintering the powder to form the thermoelectric material.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: August 5, 2014
    Assignees: ZT Plus, The Ohio State University
    Inventors: Joseph P. Heremans, Christopher M. Jaworski, Vladimir Jovovic, Fred Harris
  • Patent number: 8778215
    Abstract: An embodiment of the present disclosure provides a thermoelectric composite material including: a thermoelectric matrix including a thermoelectric material; and a plurality of nano-carbon material units located in the thermoelectric matrix and spaced apart from each other, wherein a spacing between two neighboring nano-carbon material unit is about 50 nm to 2 ?m.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: July 15, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Shih-Chun Tseng, Wen-Hsuan Chao, Hsu-Shen Chu