Kwicandelo lokuvelisa iiseli ze-hydrogen fuel, i-Membrane Electrode Assembly (MEA) isebenza njengecandelo eliphambili lokuguqulwa kwamandla, imisela ngokuthe ngqo ukusebenza kakuhle kwebhetri kunye nobomi bayo. Inyathelo lokuqala lokuveliswa kwe-MEA ngokudluliselwa kobushushu kukuxuba i-catalyst slurry—inyathelo elibalulekileyo elichaphazela umgangatho wokugqibela wemveliso. Le nkqubo ifuna ukuxuba ngokuchanekileyo ii-catalysts ze-Pt-C, izinyibilikisi, kunye nezihlanganisi ukwenza umxube ozinzileyo osasazeke ngokulinganayo.
Ukuxubana kwemveli kunzima ukulawula ngokuchanekileyo umlinganiselo wecandelo ngalinye kunye nemeko yokusasazeka, okukhokelela kwimiba efana nokungalingani kombala kunye nokuncipha komsebenzi we-catalytic kumanyathelo alandelayo.iimitha zoxinano olusemgceni Ibonelela ngesisombululo esiphumelelayo, esivumela ulawulo oluchanekileyo lwemilinganiselo yecandelo kunye neziphumo zokusasazeka ngokujonga utshintsho lobuninzi be-slurry ngexesha langempela.
I-Lonnmeter Group, umenzi ophambili kunye nomthengisi weemitha zoxinano oluphakathi, izinikele amashumi eminyaka ekuboneleleni ngezisombululo zobungcali kubathengi kwihlabathi liphela. Ezi zisombululo zincede iifektri ezininzi zoshishino, izityalo zamandla, kunye namashishini esinyithi ukunciphisa iindleko kunye nokuphucula ukusebenza kakuhle.
Indima Ebalulekileyo Yokuxuba I-Slurry
Ukusebenza kwee-hydrogen fuel cell MEAs kuxhomekeke kakhulu kukulingana kunye nokuzinza kwee-catalyst slurries. Umzekelo, ii-anode slurries zifuna i-15% Pt-C catalyst esasazeke ngokulinganayo kwi-solvent exutyiweyo ye-40% yamanzi anyibilikisiweyo, i-40% methanol, kunye ne-5% ionomer solution; ii-cathode slurries zifuna iipesenti eziphezulu ze-catalyst (20%) kunye ne-binder (10%). Olu linganiselo luchanekileyo aluchaphazeli kuphela iipropati zomzimba ze-slurry kodwa lukwachaphazela ngokuthe ngqo ukusasazwa kweendawo ezisebenzayo ze-catalytic kunye ne-proton conductivity.
Ulawulo olungalunganga loxinano lunokubangela ukuhlanganiswa kwe-catalyst okanye i-sedimentation, okubangela ukungalingani kobukhulu be-catalyst egqunywe nge-coated kunye nokusebenza kwebhetri iyonke. Umzekelo, uxinano oluphezulu lunokubonisa ukufuma okugqithisileyo kwe-catalyst okanye i-solvent, okwandisa i-slurry viscosity kwaye kubangele iziphene "ze-orange peel" okanye "i-pinhole" ngexesha lokufaka; uxinano oluphantsi lunokubonisa ukungabikho kwe-catalyst, ukungaphumeleli ukubonelela ngeendawo ezifanelekileyo zokusabela kunye nokunciphisa ukusebenza kakuhle kwebhetri.
Imida yoLawulo loBuninzi beSlurry yeMveli
Ukuxuba i-catalyst slurry yendabuko kuxhomekeke ekulinganiseni ngesandla kunye novavanyo olungaxhunyiwe kwi-intanethi kwi-primary. Le ndlela isemva kakhulu kwinkqubo yexesha langempela—ukufumana iziphumo zovavanyo kwi-sampling kudla ngokuthatha imizuzu eli-15 ukuya kwengama-30, ngelo xesha i-slurry isenokuba ingene kwinkqubo elandelayo, nto leyo ekhokelela kwinkcitho enkulu yokuphinda usetyenzwe.
Imisebenzi eyenziwa ngesandla iyasokola ukubona i-nanoscale catalyst particle agglomeration. Ukongeza, izinto ezifana notshintsho lobushushu kunye nokuphuma kwe-solvent kubangela ukuguquguquka koxinano oluguquguqukayo kwi-slurries, nto leyo iinkqubo zemveli ezingenakuyilungisa ngexesha langempela, nto leyo eyonyusa ngakumbi umngcipheko wokungazinzi komgangatho.
Umgaqo Wokusebenza kunye neeNzuzo zobugcisa
Ukuze kujongwane nale mingeni, iinjineli zeLonnmeter zenze iimitha zoxinano oluhambelanayo ngokusekelwe kumgaqo weCoriolis force, olinganisa imvamisa yokungcangcazela kolwelo ukuze kufunyanwe idatha yoxinano lwexesha langempela ngokuchanekileyo ukuya kuthi ga kwi-±0.001 g/cm³. Kwingxubevange ye-hydrogen fuel cell, ezi zixhobo zokubeka esweni ezichanekileyo zinokufakwa kwindawo yokuphuma kweetanki zokuxuba okanye imibhobho yokujikeleza ukuze kuqokelelwe rhoqo idatha yoxinano kunye nobushushu, kunye neendlela zokuhlawula ezisusa impembelelo yobushushu kuxinano.
Ngaphaya kweemitha zoxinano lweCoriolis, iLonnmeter ikwaphuhlise nezinye iimitha zoxinano olungaphakathi ezifana neemitha zoxinano lwefolokhwe kunye neemitha zoxinano lwe-ultrasonic ukubonelela ngeenzwa zokujonga uxinano olukrelekrele kwiimeko ezahlukeneyo zokusebenza. Xa ifumanisa ukuba uxinano lwe-cathode slurry ludlula ixabiso elijoliswe kulo, inkqubo ibala ngokuzenzekelayo ukuphambuka kwaye yongeza isixa esifanelekileyo se-solvent ngepompo yokulinganisa; ukuba uxinano luphantsi kakhulu, kongezwa utywala be-catalyst mother obusasazekileyo. Olu lawulo lwe-dynamic loop alulungisi kuphela ukuphambuka kwefomyula kodwa lukwaqikelela imiba enokubakho ngohlalutyo lwedatha yembali. Xa ukuguquguquka koxinano kudlula imida, inkqubo ibangela ii-alamu ukuba zibangele ukusasazeka okungaqhelekanga okanye ukwahlulwa kwesigaba, kuthintelwe iingozi zomgangatho webhetshi ngakumbi.
Iziphumo zoBeko-liso oluQhubekekayo loBuninzi
Uzinzo oluphuculweyo lweeSeli zeFuel
Iimitha zoxinano lwe-Lonnmeter ezikwi-inline density zincede abavelisi beeseli zamafutha ukuba baphumelele kakhulu ekuxubeni i-catalyst slurry. Ngokujonga ngexesha langempela kunye nokulawula ngobuchule, uluhlu lokuguquguquka koxinano lwe-slurry luye lwancitshiswa kakhulu ukusuka kwi-±0.03 g/cm³ ukuya kwi-±0.001 g/cm³. Olu phuculo luphucula ngokuthe ngqo ukuhambelana kwemveliso kunye nozinzo lokusebenza, lunyusa uxinano lwamandla eseli zamafutha kwishishini elinye nge-15%.
Ukuphuculwa Okuphawulekayo Kokusebenza Kwemveliso
Ixesha lokuvelisa i-single-batch lifinyeziwe, kunye nokonga konyaka okungaphezulu kwe-$300,000 kwiindleko zezinto zokwakha kunye nokulungiswa kwakhona. Ngaphezu koko, ukusetyenziswa kweemitha zoxinano oluphakathi kuye kwandisa yonke inkqubo. Zidityaniswe neenkqubo ze-DCS, zenza ukuba ulawulo olupheleleyo lwedijithali lusebenze ukusuka kulawulo lwefomula ukuya ekulandeleni umgangatho, zibeka isiseko semveliso enkulu yeeseli ze-hydrogen fuel.
Ukubaluleka Okukhulu kwiShishini le-Hydrogen Energy
Njengesithwali esiphambili samandla acocekileyo, iiseli ze-hydrogen fuel zijongene nemingeni emibini yokuphucula ukusebenza kunye nokunciphisa iindleko. Ukusetyenziswa kwetekhnoloji yemitha yoxinano oluphakathi akusombululi nje kuphela iingxaki eziphambili zenkqubo kwimveliso ye-MEA kodwa kukwaqhuba nokuphuculwa kwetekhnoloji kulo lonke uthotho lweshishini lamandla e-hydrogen.
Ukuba ufunaizinzwa zenkqubo ezikwi-intanethiukunciphisa iindleko kunye nokwandisa ukusebenza kakuhle kwemveliso ezenzekelayo, izixhobo ezikrelekrele zeLonnmeter yenye yezona ndlela zilungileyo onokukhetha kuzo. Le nkampani inikezela ngezixhobo ezikrelekrele zeLonnmeter.Iisampuli zasimahla ezili-100 kwihlabathi liphela—ubungakanani bulinganiselwe, ngoko ke khawuleza! Nxibelelana nathi ukuze ufumane isisombululo esenziwe ngokwezifiso sasimahla kwaye ufake isicelo seesampuli zasimahla.
Ixesha leposi: Juni-06-2025
