Metal-Metal Thermoelectric Harvester
Paper in proceedings, 2019

A 3-couples proof-of-concept harvester (55×6 mm2) was assembled by spot welding 0.1 mm thick molybdenum foil and 0.15 mm thick nickel foil together. To insulate the foils from each other at the hot side a 0.1 mm thick glass fiber sheet was placed between the foils. At the cold side the harvester was insulated with 0.1 mm polyimide tape for easier handling and fabrication of the harvester. The load resistance measurement gave impedance match of approximately 0.24 Ω at 28°C, which slowly decreased to approximately 0.1 Ω as the temperature increased to 172°C. With a temperature gradient of 172°C (0-172°C) and 0.125 (±0.025) Ω load resistance, a power output was measured to 450 (±85) μW at 7.2 mV.

Thermoelectric energy conversion

Nanotechnology

Impedance matching (electric)

Spot welding

Author

Elof Köhler

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Peter Enoksson

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Journal of Physics: Conference Series

17426588 (ISSN) 17426596 (eISSN)

Vol. 1407 1 012056

18th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2018
Daytona Beach, USA,

Subject Categories

Manufacturing, Surface and Joining Technology

Other Electrical Engineering, Electronic Engineering, Information Engineering

Condensed Matter Physics

DOI

10.1088/1742-6596/1407/1/012056

More information

Latest update

1/24/2020