Ka 1966, General Electric Company e ile ea hlahisa sele ea electrolytic ea metsi e thehiloeng khopolong ea proton conduction, e sebelisa lera la polymer e le electrolyte. Lisele tsa PEM li ne li rekisoa ke General Electric ka 1978. Hona joale, k'hamphani e hlahisa lisele tse fokolang tsa PEM, haholo-holo ka lebaka la tlhahiso ea eona e fokolang ea hydrogen, bophelo bo khutšoanyane le litšenyehelo tse phahameng tsa lichelete. Sele ea PEM e na le sebopeho sa ho ferekana kelellong, 'me likhokahano tsa motlakase pakeng tsa lisele li etsoa ka lipoleiti tsa bipolar, tse phethang karolo ea bohlokoa ho ntša likhase tse hlahisoang. Sehlopha sa anode, cathode, le membrane se theha kopano ea membrane electrode (MEA). Hangata electrode e entsoe ka lirafshoa tsa bohlokoa tse kang platinum kapa iridium. Ho anode, metsi a na le oxidized ho hlahisa oksijene, lielektrone le liprothone. Ho cathode, oksijene, lielektrone le liprothone tse hlahisoang ke anode li potoloha lera ho ea ho cathode, moo li fokotsoang ho hlahisa khase ea hydrogen. Molao-motheo oa PEM electrolyzer o bontšoa setšoantšong.
Lisele tsa electrolytic tsa PEM hangata li sebelisoa bakeng sa tlhahiso e nyane ea hydrogen, e nang le tlhahiso e phahameng ea hydrogen e ka bang 30Nm3 / h le tšebeliso ea matla ea 174kW. Ha ho bapisoa le sele ea alkaline, sekhahla sa tlhahiso ea haedrojene sa PEM se batla se akaretsa moeli oohle. PEM cell e ka sebetsa ho A phahameng hona joale density ho feta alkaline sele, esita le ho fihlela ho 1.6A/cm2, 'me e electrolytic bokgoni ke 48% -65%. Hobane filimi ea polymer ha e hanyetsane le mocheso o phahameng, mocheso oa sele ea electrolytic hangata o ka tlase ho 80 ° C. Hoeller electrolyzer e hlahisitse theknoloji e ntlafalitsoeng ea holim'a lisele bakeng sa li-electrolyzer tse nyane tsa PEM. Lisele li ka etsoa ho latela litlhoko, ho fokotsa bongata ba litšepe tsa bohlokoa le ho eketsa khatello ea ts'ebetso. Monyetla o ka sehloohong oa electrolyzer ea PEM ke hore tlhahiso ea haedrojene e fetoha hoo e batlang e le synchronously le matla a fanoang, a loketseng phetoho ea tlhokahalo ea haedrojene. Lisele tsa Hoeller li arabela ho 0-100% liphetoho tsa litekanyetso tsa mojaro ka metsotsoana. Theknoloji ea Patent ea Hoeller e ntse e le litekong tsa netefatso, 'me setsi sa liteko se tla hahuoa mafelong a 2020.
Ho hloeka ha hydrogen e hlahisoang ke lisele tsa PEM ho ka ba holimo ho 99.99%, e leng e phahameng ho feta ea lisele tsa alkaline. Ntle le moo, ho kenella ha khase ho tlase haholo ho lera la polymer ho fokotsa kotsi ea ho etsa metsoako e tukang, ho lumella electrolyzer ho sebetsa maemong a tlase haholo a hajoale. Khokahano ea metsi a fanoang ho electrolyzer e tlameha ho ba ka tlase ho 1S/cm. Hobane lipalangoang tsa proton ho pholletsa le lera la polymer li arabela kapele ho feto-fetoha ha matla, lisele tsa PEM li ka sebetsa ka mekhoa e fapaneng ea phepelo ea motlakase. Leha sele ea PEM e se e rekisitsoe, e na le mathata a itseng, haholo-holo litšenyehelo tse phahameng tsa matsete le litšenyehelo tse phahameng tsa membrane le li-electrode tsa bohlokoa tsa tšepe. Ho phaella moo, bophelo ba tšebeletso ea lisele tsa PEM bo khutšoanyane ho feta ba lisele tsa alkaline. Nakong e tlang, matla a sele ea PEM a ho hlahisa haedrojene a hloka ho ntlafatsoa haholo.
Nako ea poso: Feb-02-2023