High Power Density Thermoelectric Generators with Skutterudites

Autor: Soufiane El Oualid, Eric Alleno, Thierry Caillat, Anne Dauscher, Jan D. Koenig, Uwe Kruck, Iurii Kogut, Francis Kosior, Eugen Geczi, Christophe Candolfi, Alexandre Jacquot, Bertrand Lenoir, M. Benyahia, Philippe Masschelein
Přispěvatelé: Institut Jean Lamour (IJL), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie et des Matériaux Paris-Est (ICMPE), Institut de Chimie du CNRS (INC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Fraunhofer Institute for Physical Measurement Techniques (Fraunhofer IPM), Fraunhofer (Fraunhofer-Gesellschaft), California Institute of Technology (CALTECH), ANR-11-PICF-0007,WATTS(2011), ANR-12-PRGE-0008,NANOSKUT,SKUTTERUDITES NANOSTRUCTUREES POUR LA GENERATION THERMOELECTRIQUE(2012), European Project: 692482,H2020,H2020-ECSEL-2015-2-IA-two-stage,EnSO(2016), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Publica
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Materials science
thermoelectric modules
thermoelectric module
02 engineering and technology
engineering.material
010402 general chemistry
01 natural sciences
7. Clean energy
thermoelectricity
Modelling
[SPI.MAT]Engineering Sciences [physics]/Materials
[SPI]Engineering Sciences [physics]
Thermoelectric effect
Skutterudites
General Materials Science
Skutterudite
Power density
[PHYS]Physics [physics]
power generation
Renewable Energy
Sustainability and the Environment
business.industry
Energy harvesting
Thermoelectric
skutterudite
[SPI.NRJ]Engineering Sciences [physics]/Electric power
021001 nanoscience & nanotechnology
Thermoelectric materials
Electrical contacts
0104 chemical sciences
Electricity generation
Thermoelectric generator
engineering
Optoelectronics
Electric power
0210 nano-technology
business
Thermoelectric generators
Zdroj: Advanced Energy Materials
Advanced Energy Materials, 2021, 11 (19), pp.2100580. ⟨10.1002/aenm.202100580⟩
Advanced Energy Materials, Wiley-VCH Verlag, 2021, 11 (19), pp.2100580. ⟨10.1002/aenm.202100580⟩
ISSN: 1614-6832
1614-6840
Popis: International audience; Thermoelectric generators (TEGs) offer a versatile solution to convert low-grade heat into useful electrical power. While reducing the length of the active thermoelectric legs provides an efficient strategy to increase the maximum output power density pmax, both the high electrical contact resistances and thermomechanical stresses are two central issues that have so far prevented a strong reduction in the volume of thermoelectric materials integrated. Here, it is demonstrated that these barriers can be lifted by using a nonconventional architecture of the legs which involves inserting thick metallic layers. Using skutterudites as a proof-of-principle, several single-couple and multi-couple TEGs with skutterudite layers of only 1 mm are fabricated, yielding record pmax ranging from 3.4 up to à 7.6 W cm−2 under temperature differences varying between 450 and 630 K. The highest pmax achieved corresponds to a 60-fold increase per unit volume of skutterudites compared to 1 cm long legs. This work establishes thick metallic layers as a robust strategy through which high power density TEGs may be developed.
Databáze: OpenAIRE
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