Ipleyiti ye-bipolar, eyaziwa ngokuba yipleyiti yokuqokelela, yenye yezona zinto zibalulekileyo zeseli yefutha. Inemisebenzi kunye neempawu ezilandelayo: ukwahlula ifutha kunye ne-oxidizer, ukuthintela ukungena kwegesi; Ukuqokelela kunye nokuqhuba umbane, umbane ophezulu; Umjelo wokuhamba owenziweyo nocutshungulwayo unokusasaza igesi ngokulinganayo kumaleko wempendulo ye-electrode kwimpendulo ye-electrode. Kukho iinkqubo ezininzi zokuqengqeleka kweepleyiti ze-graphite bipolar.
1, indlela yokuqengqeleka kwepleyiti enamaleko amaninzi:
Inkqubo yokusebenza komatshini wokuqengqeleka oqhubekekayo onezingqimba ezininzi: i-veneer ikhutshwa kwintonga yokugquma ye-veneer, kunye ne-adhesive kumacala omabini omhlaba nge-roller yokugquma ye-binder, kwaye i-winding roll kunye ne-veneer zidityaniswe zibe yipleyiti enezingqimba ezintathu, kwaye umsantsa phakathi kwee-roller uqengqeleka ube bubukhulu obuthile. Emva koko wondla kwi-heater ukuze ifudumale kwaye yome. Ngokusebenzisa ulawulo lobukhulu, qengqeleka, lungisa ubukhulu ukuze bufikelele kubungakanani obuchaziweyo, uze uyithumele kwisixhobo sokugcada ukuze igcadwe. Xa i-binder yenziwe i-carbon, ekugqibeleni icinezelwa kwimo nge-pressure roller.
Ukusebenzisa indlela yokuqengqeleka eqhubekayo, ipleyiti yegrafiti eguquguqukayo enobukhulu obuyi-0.6-2mm inokucinezelwa, nto leyo engcono kuneyomatshini wokuqengqeleka onomaleko omnye, kodwa ngenxa yobukhulu bepleyiti kuya kuzisa neziphene zokuqhaqha ipleyiti enamaleko, nto leyo eya kuzisa ingxaki ekusetyenzisweni kwayo. Isizathu kukuba ukugcwala kwegesi kuhlala kuphakathi komaleko ngexesha lokucinezelwa, nto leyo ethintela ukubophana okusondeleyo phakathi kwale maleko. Indlela yokuphucula kukusombulula ingxaki yegesi yokukhupha umoya kwinkqubo yokucinezelwa.
Ukuqengqeleka kwepleyiti yomaleko omnye, nangona ipleyiti yoxinzelelo igudile, kodwa ayityebanga kakhulu. Xa ukubumba kutyebile kakhulu, kunzima ukuqinisekisa ukufana kwayo kunye noxinano lwayo. Ukuze kwenziwe iipleyiti ezityebileyo, iibhodi zemaleko amaninzi zifakwa phezulu kwaye zicinezelwe kwiibhodi ze-composite zemaleko amaninzi. I-binder yongezwa phakathi kweeleya ezimbini nganye ize iqengqelwe. Emva kokuyila, iyafudunyezwa ukuze i-carbonize kwaye iqine i-binder. Indlela yokuqengqeleka kwepleyiti yemaleko amaninzi yenziwa kumatshini wokuqengqeleka oqhubekekayo wemaleko amaninzi.
2, indlela yokuqengqeleka eqhubekayo yepleyiti enye-umaleko omnye:
Ulwakhiwo lwerola luqulathe oku kulandelayo: (1) ihopha yegrafiti yempethu; (2) Isixhobo sokutya sokungcangcazela; (3) Ibhanti yokuhambisa; (4) Iirola ezine zoxinzelelo; (5) Isibini sezifudumezi; (6) irola yokulawula ubukhulu bephepha; Iirola zokuhombisa okanye zokupeyinta; (8) kunye nerola; (9) Imela yokusika; (10) Irola yemveliso egqityiweyo.
Le ndlela yokuqengqa ingacinezela i-graphite eguquguqukayo ibe ngamaphepha ngaphandle kwe-binder, kwaye yonke inkqubo yenziwa ngezixhobo ezikhethekileyo ezixhotyiswe ngee-roller roller.
Inkqubo yokusebenza: i-graphite ecocekileyo kakhulu ingena kwisixhobo sokondla isuka kwi-hopper ize iwele kwibhanti yokuhambisa. Emva kokuba i-roller yoxinzelelo iqengqeleka, yenze ubukhulu obuthile bomaleko wezinto. Isixhobo sokufudumeza sivelisa ukufudumeza obushushu obuphezulu ukususa igesi eseleyo kumaleko wezinto kunye nokwandisa i-graphite engandiswanga okokugqibela. Emva koko izinto eziguqulweyo ezenziwe ekuqaleni zifakwa kwi-roller elawula ubungakanani bobukhulu kwaye zicinezelwe kwakhona ngokobukhulu obuchaziweyo ukuze kufunyanwe ipleyiti ethe tyaba enobukhulu obufanayo kunye nobunzima obuthile. Ekugqibeleni, emva kokusika nge-cutter, songa i-barrel egqityiweyo.
Oku kungasentla yinkqubo yokubumba i-graphite bipolar plate, ndiyathemba ukukunceda. Ukongeza, izinto ze-carbonaceous ziquka i-graphite, izinto ze-carbon ezibunjiweyo kunye ne-grafite ekhulisiweyo (eguquguqukayo). Ii-bipolar plates eziqhelekileyo zenziwe nge-dense graphite kwaye zenziwe ngomatshini kwiindlela zokuhamba kwegesi. I-graphite bipolar plate ineempawu zeekhemikhali ezizinzileyo kunye nokumelana okuncinci kokunxibelelana ne-MEA.
Ixesha lokuthumela: Okthobha-23-2023