Litsamaisong tsa matla a motlakase tse ntseng li fetoha kamehla,graphite e ikutloaE hlahella e le thepa e nang le khabone e feto-fetohang, e nang le thepa e ikhethang ea sebopeho, motlakase le lik'hemik'hale. Le hoja e se meralo eohle ea lisele tsa mafura e sebelisang graphite felt ka kakaretso, karolo ea eona—haholo-holo litsamaisong tse tsoetseng pele tsa lisele tsa mafura le lisele tsa mafura tse kopantsoeng—e hohetse tlhokomelo e eketsehileng ea baenjiniere le baqapi ba sistimi ba inehetseng ho ntlafatseng ts'ebetso ea lisele tsa mafura maemong a thepa le a ts'ebetso.
I. Litšobotsi tsa motheo tsa Graphite felt
Ho ya ka pono ya saense ya thepa, graphite felt ke netweke e nang le masoba a mararo e bopilweng ka difaeba tsa khabone tse lohiloeng, tseo hangata di nkwang ho polyacrylonitrile (PAN) kapa di-precursor tsa pitch mme di graphitized dithempereichara tse phahameng. Sebopeho sena se fana ka graphite felt ka mefuta e fapaneng ya thepa ya bohlokwa haholo tikolohong ya electrochemical:
● Ho tsamaisa motlakase ka lebelo le phahameng: ho netefatsa hore elektrone ea tsamaisoa
● Ho ba le masoba a mangata (>90%): ho nolofatsa ho kenella ha khase kapa metsi
● Ho hanyetsa mafome ka matla: ho ikamahanya le maemo a tikoloho a asiti/oksidating (mohlala, PEMFCs)
● Ho mamella khatello hantle: ho tlatsetsa botsitsong ba ho kopana
● Ho hanyetsa mocheso o phahameng: ho loketse litsamaiso tsa electrochemical tsa mocheso o phahameng
II. Karolo ea Graphite Felt Liseleng tse Fapaneng tsa Mafura
Tšebeliso ea graphite e ikutloang theknolojing ea sele ea mafura e fapana haholo ho latela sebopeho sa sistimi.
1. Libetri tsa Phallo (mohlala, libeteri tsa phallo ea vanadium redox) - Thepa ea Core Electrode
Litsamaisong tsa electrochemical tsa mokhahlelo oa metsi - haholo-holo libeteri tsa phallo, tseo hangata li buisanoang hammoho le theknoloji ea sele ea mafura ka lebaka la melao-motheo ea tsona e tšoanang ea electrochemical - graphite felt e sebelisoa e le thepa ea mantlha ea electrode. Sebaka sa eona se phahameng se ikhethileng le sebopeho se kopaneng sa masoba li fana ka libaka tse ngata tse sebetsang bakeng sa likarabelo tsa redox ha li ntse li khothalletsa phallo ea electrolyte. Mekhoa ea ho fetola bokaholimo joalo ka ts'ebetso ea mocheso kapa oxidation hangata e sebelisoa ho ntlafatsa ho nosetsa ha eona le ts'ebetso ea catalytic, e amang ka kotloloho katleho ea sistimi le botsitso ba potoloho.
2. Liseleng tsa Mafura tsa PEM (Lisele tsa Mafura tsa Proton Exchange Membrane) – Thepa e Thusang ea ho Fapanya/Tšehetso
Ka lehlakoreng le leng, lits'ebetsong tsa phapanyetsano ea proton (PEM), graphite felt ha se khetho e tloaelehileng bakeng sa lera la khase (GDL). Pampiri ea carbon kapa lesela la carbon lia busa ka lebaka la ho leka-lekana ha eona ho ntlafalitsoeng ho tsa motlakase, ho tiea ha mechini le ho etsoa habonolo. Leha ho le joalo, graphite felt e fumane lits'ebetso tse ikhethang litlhophisong tse ling tse ikhethileng tsa PEM, haholo-holo moo ho hlokahalang taolo e ntlafalitsoeng ea metsi kapa kabo ea khase. Ho ba le masoba a mangata ho ka ntlafatsa ts'ebetso ea phetisetso ea bongata tlas'a mongobo o phahameng kapa maemo a sekametseng ho mongobo, empa sena se hlahisa litšebelisano-'moho ho hanyetsaneng le botsitso ba khatello, tse lokelang ho rarolloa ka taolo e hlophisitsoeng ka hloko ea stack le khatello.
3. Liseleng tsa Mafura tse Mocheso o Phahameng (li-SOFC, jj.) – Buffer e Thusang ea ho Tsamaisa/Ho Tiisa
Litsamaisong tsa mocheso o phahameng (mohlala, li-electrolyzer tsa oxide e tiileng), graphite felt hangata ha e sebelisoe e le karolo ea mantlha ea electrochemical ka lebaka la ho busa ha thepa ea ceramic ka har'a li-electrode le electrolyte. Leha ho le joalo, e ka sebeletsa mesebetsi e thusang, ho kenyeletsoa ho tsamaisa motlakase, tšehetso ea ho tiisa, kapa ho amohela katoloso ea mocheso lisebelisoa tse thusang kapa libaka tse kopaneng. Le hoja mesebetsi ena e le ea bobeli, e bohlokoa bakeng sa ho netefatsa ho tšoarella ha nako e telele le botšepehi ba mechini tlas'a maemo a feteletseng a ts'ebetso.
III. Kakaretso ea Mesebetsi ea Bohlokoa Theknolojing ea Lisele tsa Mafura
Ho ya ka pono ya boenjiniere ba tshebetso, boleng ba graphite felt bo ho bokgoni ba yona ba ho kopanya mesebetsi e mengata ka hara thepa e le nngwe. Sebopeho sa yona sa mahlakore a mararo se dumella ho thehwa ha di-interface tse atolositsweng tsa electrochemical, ho eketsa sebaka sa karabelo se sebetsang ntle le ho eketsa haholo kgato ya sistimi. Ka nako e le nngwe, e kenya letsoho kabong e tshwanang ya mokelikeli, e fokotsa di-gradients tsa mahloriso le ho fokotsa tahlehelo ya polarization e amanang le meedi ya phetisetso ya boima. Ho kopanngwa hantle ha graphite felt ho thusa ho thehwa ha marangrang a tswelang pele a tsamaisang motlakase, ka hona ho fokotsa khanyetso ya kahare le ho ntlafatsa bokgoni ba sistimi ka kakaretso.
Ho feta moo, e bapala karolo ea bohlokoa ntlafatsong ea mechini le kopano. Ho hatelloa le ho tšoarella ha graphite ho e lumella ho ikamahanya le mamello ea tlhahiso le ho boloka khokahano e tsitsitseng ea interfacial tlas'a maemo a ho bokellana. Tšobotsi ena e molemo haholo litsamaisong tsa modular kapa tse kholo, kaha kabo e ts'oanang e bohlokoa bakeng sa botsitso ba ts'ebetso.
IV. Hobaneng o lokela ho kgetha VET Energy?
Lefapheng la lisele tsa mafura le lits'ebetso tse amanang le tsona tsa electrochemical tsa mocheso o phahameng, VET Energy, e sebelisa boiphihlelo ba eona bo tsoelang pele ba matsete a R&D le boenjiniere thepa e thehiloeng khaboneng, e hahile sistimi e felletseng ea sehlahisoa sa graphite felt le thepa e kopaneng e koahelang maemo a fapaneng a ts'ebeliso, e fana ka litharollo tse etselitsoeng mefuta e fapaneng ea lisele tsa mafura. Litharollo tsa thepa tsa VET Energy li sebelisitsoe haholo ho pholletsa le mahlale a fapaneng, ho kenyeletsoa lisele tsa mafura tsa proton exchange membrane le lisele tsa mafura tsa solid oxide, 'me li ntlafalitsoe le ho netefatsoa lits'ebetsong tse atolositsoeng joalo ka libeteri tsa phallo. Haeba u ntse u hlahloba bokhoni ba ts'ebeliso bagraphite e ikutloale thepa e amanang le khabone litsamaisong tsa electrochemical, kapa u lakatsa ho ntlafatsa lits'ebetso le ts'ebetso e teng, ka kopo ikutloe u lokolohile ho ikopanya le rona bakeng sa puisano le tšebelisano-'moho ho khothaletsa nts'etsopele ea theknoloji ea sele ea mafura ea moloko o latelang.
Nako ea poso: Mmesa-03-2026