20.500.12556/RUL-186796 Razvoj postopka sestave petplastnega membransko-elektrodnega sklopagorivne celice z uporabo temperaturno nadzorovane šablone Development of a procedure for assembling a five-layer membrane-electrode assembly of a fuel cell using a temperature-controlled fixture V zaključni nalogi je obravnavan razvoj postopka sestave petplastnega membransko-elektrodnega sklopa (MEA) gorivne celice s protonsko izmenjevalno membrano. Izhodišče je obstoječi laboratorijski postopek, pri katerem se poravnani sklop iz FDM-šablone prenese v vročo stiskalnico, kar lahko povzroči zamik in vihanje laminacijskih folij ter nastanek zračnih mehurjev. Slednje pa povzroči zmanjšanje aktivne površine MEA. Z namenom izboljšanja postopka je bila zasnovana in s CNC-obdelavo izdelana dvodelna aluminijasta pozicionirna šablona z vodilnimi zatiči in integriranim merjenjem temperature med laminacijo. Integrirano merjenje temperature prispeva k večji ponovljivosti in sledljivosti postopka. Primerjava z obstoječim postopkom je pokazala boljšo poravnavo folij in manj napak, kot so vihanje in zračni mehurji. Nove MEA so bile elektrokemijsko analizirane in rezultati primerjani z rezultati obstoječih MEA. Rezultati kažejo, da nova šablona zmanjša izgubo aktivne površine zaradi zmikov. This thesis addresses the development of a manufacturing process for assembling a five-layer membrane electrode assembly (MEA) for a proton exchange membrane fuel cell. The starting point is an existing laboratory procedure in which the aligned assembly is transferred from an FDM template to a hot press, which can cause misalignment and warping of the lamination foils, as well as the formation of air bubbles. These defects result in a reduction in the active area of the MEA. To improve the process, a two-part aluminum positioning fixture with guide pins and integrated temperature measurement during lamination was designed and manufactured using CNC machining. Integrated temperature measurement contributes to greater process repeatability and traceability. Comparison with the existing procedure showed improved foil alignment and fewer defects, such as warping and air bubbles. The new MEAs were electrochemically analyzed, and the results were compared with those of existing MEAs. The results show that the new template reduces the loss of active area caused by misalignment. gorivne celice membransko-elektrodni sklop poravnava plasti pozicionirne šablone temperaturni nadzor fuel cells membrane electrode assembly layer misalignment electrochemistry temperature control true false false [G. Bohinc] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-09-05 08:32:59 2026-09-05 08:33:02 2026-09-08 09:14:49 0000-00-00 00:00:00 2026 0 Ljubljana 0 XI, 38 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.352.6:621.3.035(043.2) 289386 290314243 49596.pdf 49596.pdf 1 1352B37E1D9654883032C73C0DFF65C0 b70b67cb68fb28cff2c714a7fd47d02c39d24f896c0781887ba225dfd61f2b07 a3eb5c05-a8f3-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=246167 Fakulteta za strojništvo 0 0 0