Emkhakheni wokukhiqiza amaseli kaphethiloli we-hydrogen, i-Membrane Electrode Assembly (MEA) isebenza njengengxenye eyinhloko yokuguqulwa kwamandla, inquma ngqo ukusebenza kahle kwebhethri kanye nesikhathi sokuphila kwayo. Isinyathelo sokuqala sokukhiqizwa kwe-MEA ngokudluliselwa kokushisa ukuxubana kwe-catalyst slurry—isinyathelo esibalulekile esithinta ikhwalithi yokugcina yomkhiqizo. Le nqubo idinga ukuxubana okunembile kwama-catalyst e-Pt-C, ama-solvent, kanye nama-binder ukuze kwakheke ingxube eqinile ehlakazekile ngokulinganayo.
Ukuxubana kwendabuko kunzima ukulawula ngokunembile isilinganiso sengxenye ngayinye kanye nesimo sokuhlakazeka, okuholela ezinkingeni ezifana nokungalingani kokumboza kanye nokwehla komsebenzi wokuvuselela ezinyathelweni ezilandelayo.amamitha obuningi obungaphakathi inikeza ikhambi eliphumelelayo, elivumela ukulawulwa okunembile kwezilinganiso zezingxenye kanye nemiphumela yokusabalala ngokuqapha ngesikhathi sangempela izinguquko zobuningi be-slurry.
I-Lonnmeter Group, umkhiqizi ohamba phambili kanye nomhlinzeki wamamitha okuqina angaphakathi, izinikele amashumi eminyaka ekuhlinzekeni izixazululo zobungcweti kumakhasimende emhlabeni jikelele. Lezi zixazululo zisize izimboni eziningi zezimboni, izitshalo zikagesi, kanye namabhizinisi ensimbi ukunciphisa izindleko nokuthuthukisa ukusebenza kahle.
Indima Ebalulekile Yokuxuba Udaka
Ukusebenza kwama-MEA e-hydrogen fuel cell kuncike kakhulu ekufaneni nasekuzinzeni kwama-catalyst slurries. Isibonelo, ama-anode slurries adinga i-15% Pt-C catalyst ehlakazeke ngokulinganayo ku-solvent exubile yamanzi angama-40% deionized, i-40% methanol, kanye nesisombululo se-ionomer esingu-5%; ama-cathode slurries adinga isilinganiso esiphezulu se-catalyst (20%) kanye ne-binder (10%). Lesi silinganiso esinembile asigcini nje ngokuthinta izakhiwo zomzimba ze-slurry kodwa futhi sithinta ngqo ukusatshalaliswa kwezindawo ezisebenzayo ze-catalytic kanye ne-proton conductivity.
Ukulawulwa kobuningi obungafanele kungabangela ukuhlangana kwe-catalyst noma ukuchitheka, okuholela ekujiyeni okungalingani kwe-catalyst eboshwe ngisho nokusebenza kwebhethri iyonke. Isibonelo, ubuningi obuphezulu bungabonisa ukuhwamuka kwe-catalyst ngokweqile noma i-solvent, kwandise i-slurry viscosity futhi kubangele amaphutha "ekhasini le-orange" noma "embobeni" ngesikhathi sokumboza; ubuningi obuphansi bungabonisa ubuningi obunganele be-catalyst, ukwehluleka ukunikeza izindawo zokusabela ezanele nokunciphisa ukusebenza kahle kwebhethri.
Ukulinganiselwa Kokulawulwa Kobuningi Be-Slurry Yendabuko
Ukuxuba i-catalyst slurry yendabuko kuncike ekulinganisweni ngesandla kanye nokuhlolwa okungaxhunyiwe ku-inthanethi ekuqaleni. Le ndlela ingemuva kakhulu enkambisweni yesikhathi sangempela—ukuthola imiphumela yokuhlolwa ngokuthatha amasampula kuvame ukuthatha imizuzu eyi-15-30, lapho i-slurry kungenzeka ukuthi isingene enkambisweni elandelayo, okuholela ekuchithekeni okukhulu kokusebenza kabusha.
Imisebenzi eyenziwa ngesandla iyahluleka ukuthola ukuhlangana kwezinhlayiya ze-catalyst ezincane kakhulu. Ngaphezu kwalokho, izici ezifana nokushintsha kwezinga lokushisa kanye nokuhwamuka kwe-solvent kubangela ukuguquguquka kobuningi obuguquguqukayo kuma-slurries, izinqubo zendabuko ezingenakukwazi ukuzikhokhela ngesikhathi sangempela, okwandisa kakhulu izingozi zokungazinzi kwekhwalithi.
Isimiso Sokusebenza kanye Nezinzuzo Zobuchwepheshe
Ukuze babhekane nalezi zinselele, onjiniyela beLonnmeter bathuthukise amamitha okuqina angaphakathi ngokusekelwe kusimiso samandla eCoriolis, esilinganisa imvamisa yokudlidliza koketshezi ukuze kutholakale idatha yokuqina kwesikhathi sangempela ngokunemba okufika ku-±0.001 g/cm³. Ekuxubeni i-slurry ye-hydrogen fuel cell, lawa madivayisi okuqapha anokunemba okuphezulu angafakwa endaweni yokuphuma kwamatangi okuxuba noma amapayipi okujikeleza ukuze kuqoqwe njalo idatha yokuqina kanye nokushisa, ngama-algorithms esinxephezelo asusa umthelela wokushisa ekuxineni.
Ngale kwamamitha okuqina kweCoriolis, iLonnmeter iphinde yathuthukisa amanye amamitha okuqina angaphakathi njengokulungisa amamitha okuqina kwefoloko kanye namamitha okuqina kwe-ultrasonic ukuze inikeze izinzwa zokuqapha ukuqina ezihlakaniphile zezimo zokusebenza ezahlukene. Lapho ithola ukuthi ukuqina kwe-cathode slurry kudlula inani eliqondiwe, uhlelo lubala ngokuzenzakalelayo ukuphambuka bese lufaka inani elifanele le-solvent ngepompo yokulinganisa; uma ubuningi buphansi kakhulu, uketshezi lukamama olusakazwayo olusetshenzisiwe luyangezwa. Lokhu kulawula kwe-dynamic loop akugcini nje ngokulungisa ukuphambuka kwefomula kodwa futhi kubikezela izinkinga ezingaba khona ngokuhlaziywa kwedatha yomlando. Lapho ukuguquguquka kobuningi kudlula imingcele, uhlelo luqala ama-alamu ukuze kushukumise ukuhlakazeka okungafanele noma ukuhlukaniswa kwesigaba, kugweme izingozi zekhwalithi ye-batch eziqhubekayo.
Imiphumela Yokuqapha Ubuningi Okuqhubekayo
Ukuqina Kwamaseli Kaphethiloli Okuthuthukisiwe
Amamitha okuqina kwe-Lonnmeter asize abakhiqizi bamaseli kaphethiloli ukuthi bafinyelele impumelelo ebalulekile ekuxubeni kwe-catalyst slurry. Ngokuqapha kwesikhathi sangempela kanye nokulawula okuhlakaniphile, amazinga okuguquguquka kokuqina kwe-slurry ancishiswe kakhulu kusukela ku-±0.03 g/cm³ kuya ku-±0.001 g/cm³. Lokhu kuthuthukiswa kuthuthukisa ngqo ukuhambisana komkhiqizo kanye nokuqina kokusebenza, kwandisa ukuqina kwamandla eseli kaphethiloli ebhizinisini elilodwa ngo-15%.
Ukuthuthukiswa Okuphawulekayo Kokusebenza Kokukhiqiza
Isikhathi sokukhiqizwa kweqembu elilodwa sifinyeziwe, ngokonga kwaminyaka yonke okungaphezu kuka-$300,000 ezindleleni zezinto zokwakha kanye nokulungisa kabusha. Ngaphezu kwalokho, ukusetshenziswa kwamamitha obuningi obungaphakathi kwemigqa kuye kwathuthukisa yonke inqubo. Kuhlanganiswe nezinhlelo ze-DCS, zenza kube lula ukuphathwa kwedijithali ngokugcwele kusukela ekuphathweni kwefomula kuya ekulandeleni ikhwalithi, okubeka isisekelo sokukhiqizwa kwamaseli kaphethiloli e-hydrogen amakhulu.
Ukubaluleka Okukhulu Kwemboni Yamandla E-Hydrogen
Njengomthwali oyinhloko wamandla ahlanzekile, amaseli kaphethiloli we-hydrogen abhekene nezinselele ezimbili zokuthuthukisa ukusebenza kanye nokunciphisa izindleko. Ukusetshenziswa kobuchwepheshe bemitha yobuningi obuphakathi akuxazululi nje kuphela izinkinga ezibalulekile zenqubo ekukhiqizweni kwe-MEA kodwa futhi kuqhuba ukuthuthukiswa kobuchwepheshe kulo lonke uchungechunge lwemboni yamandla e-hydrogen.
Uma ufunaizinzwa zenqubo eziku-inthanethiukuze kuncishiswe izindleko futhi kwandiswe ukusebenza kahle ekukhiqizeni okuzenzakalelayo, i-Lonnmeter instrumentation intelligence ingenye yezinketho zakho ezinhle kakhulu. Le nkampani inikezaAmasampula wamahhala ayi-100 emhlabeni jikelele—amanani anqunyelwe, ngakho-ke thatha isinyathelo ngokushesha! Xhumana nathi ukuze uthole ikhambi lamahhala elenziwe ngokwezifiso bese ufaka isicelo samasampula wamahhala.
Isikhathi sokuthunyelwe: Juni-06-2025
