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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:47 |
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Conference: Bucharest University Faculty of Physics 2015 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
2 kW power module based on fuel cells - manufacturing technology of the pole pieces and electrodes
Authors:
Boros Tiberiu FRANCISC (1,2),Kovács EDE(1,2), Szász LEHEL (1,2) Borbáth TUNDE(2), Ana Maria BONDAR (2), Borbáth ISTVAN (2)
Affiliation:
1)University of Bucharest, Faculty of Physics, Atomistilor 405, P.O 38, Bucharest-Magurele, Romania, 077125
2)S.C. ROSEAL S.A.,535600 Odorheiu Secuiesc, Str. N. Bălcescu Nr. 5/A, Jud. Harghita, România
E-mail
istarom@3nanosae.org
Keywords:
fuel cell battery, electrode assembly, bipolar plates, graphite
Abstract:
The aim of the research was to create a 2 kW fuel cell battery. Each cell was designed to work at a nominal voltage of 0.5V, so the voltage of the battery to be charged within the range of 3 – 8 V, at a current of 0 – 180 A.
First of all, the manufacturing technology of the components of the fuel cells has been developed, which operate at 80 °C , in a pressure range of 1-5 bar by using hydrogen as fuel and air as oxidant. Based on this technology fuel cell components has been manufactured: the membrane - electrode assembly (MEA ), bipolar plates and sealing gaskets.
The electrodes have been made of a carbon support with a conductive nanocarbon and an electrocatalyst layer. The MEA has been fabricated by hot pressing of the electrodes onto the membrane, as a whole sandwich.
Bipolar plates were obtained from graphite powder and polymer, which was blended, milled, sieved, pressed and heat treated at 320 şC.
Two types of sealing gaskets were obtained: Ethylene Propylene Diene Rubber (EPDM) and silicone gaskets.
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