Tshiab Zog Kev Lag Luam
Peb cov porous titanium daim hlau thiab porous stainless hlau daim hlau yuav siv tau raws li cov pa roj diffusion txheej (GDL) nyob rau hauv polymer electrolyte membrane roj hlwb (PEMFC).
Roj cell GDL muaj nuj nqi
-GDL yog ib qho tseem ceeb ntawm cov roj hlwb, thiab nws lub luag haujlwm tseem ceeb yog:
-Catalyst cab kuj
- Txhawb lub cev muaj zog qauv
-Conductive muaj nuj nqi
- Uniform gas diffusion muaj nuj nqi
- Kev thauj dej muaj nuj nqi ntawm diffusion txheej
Roj cell GDL cov cai
-Uniform ntxeem tau qauv, zoo huab cua permeability
- Tsawg resistivity, muaj zog electron conductivity
-Tight qauv thiab tiaj tus nto, txo kev sib cuag tsis kam thiab txhim kho conductivity
-Muaj qee yam khoom siv zog, tsim nyog rigidity thiab yoog raws, uas yog qhov tsim nyog rau kev tsim cov khoom siv hluav taws xob thiab muab kev ruaj ntseg ntawm cov qauv electrode nyob rau hauv kev ua haujlwm ntev.
- Tsim nyog hydrophilic / hydrophobic tshuav nyiaj li cas los tiv thaiv cov dej ntau dhau los ntawm kev thaiv qhov pores thiab ua rau cov pa roj permeability txo.
-Muaj zoo tshuaj stability thiab thermal stability.
Peb cov hmoov silicon kuj tseem siv rau hauv lub zog tshiab.
Fais fab kis thiab faib
Lub Hwj Chim Fais Fab Kev Lag Luam thiab Kev faib khoom lag luam tsim cov khoom siv ruaj khov thiab kub kub tiv thaiv kev sib cuag. Peb cov neeg siv khoom siv cov tshuab no los tswj cov hluav taws xob txog li 1200 kV thiab tam sim no txog 50 kA. Cov pa hlau tsis haum rau daim ntawv thov no, thaum tooj liab tungsten, tooj liab chromium thiab tungsten carbide nyiaj tuaj yeem tswj tau qhov kub thiab txias. Peb cov arc tiv tauj yog cov hnav-tiv taus thiab muaj kev ua haujlwm zoo arc yaig.
Peb cov hmoov silicon kuj tseem siv rau hauv lub zog tshiab.
Fais fab kis thiab faib
Lub Hwj Chim Fais Fab Kev Lag Luam thiab Kev faib khoom lag luam tsim cov khoom siv ruaj khov thiab kub kub tiv thaiv kev sib cuag. Peb cov neeg siv khoom siv cov tshuab no los tswj cov hluav taws xob txog li 1200 kV thiab tam sim no txog 50 kA. Cov pa hlau tsis haum rau daim ntawv thov no, thaum tooj liab tungsten, tooj liab chromium, thiab tungsten carbide silver tuaj yeem tswj tau qhov kub thiab txias. Peb cov arc tiv tauj yog cov hnav-tiv taus thiab muaj kev ua haujlwm zoo arc yaig.