I-bipolar plate, ekwabizwa ngokuba yi-colector plate, yenye yezinto ezibalulekileyo ze-fuel cell. Inemisebenzi elandelayo kunye neepropati: ukwahlula i-fuel kunye ne-oxidizer, ukukhusela ukungena kwegesi; Ukuqokelela kwaye uqhube i-conductivity yangoku, ephezulu; Umjelo wokuqukuqela owenziweyo kwaye ucutshungulwe unokusasaza ngokulinganayo igesi kwindawo yokusabela ye-electrode yokusabela kwe-electrode. Kukho iinkqubo ezininzi zokuqengqeleka zegraphite bipolar plates.
1, indlela yokuqengqeleka yepleyiti enamaleko amaninzi:
Inkqubo yokusebenza ye-multi-layer eqhubekayo yomatshini wokuqengqeleka: i-veneer itsalwa kwi-veneer winding rod, kunye ne-adhesive kumacala omabini omhlaba ngokusebenzisa i-binder coating roller, kunye ne-winding roll kunye ne-veneer idityaniswe ibe yinto emithathu. -i-plate etyebileyo, kwaye i-gap phakathi kwee-roller ifakwe kwi-thickness ethile. Emva koko fakela kwisifudumezi ukufudumeza kunye nokoma. Ngolawulo lobunzima, qengqeleka, uhlengahlengise ubukhulu ukuze ufikelele kubungakanani obuchaziweyo, kwaye emva koko uthumele kwisixhobo sokuqhotsa ukuze uqhotyiswe. Xa i-binder i-carbonized, ekugqibeleni icinezelwe ibe yimo kunye ne-roller yoxinzelelo.
Ukusebenzisa indlela eqhubekayo yokuqengqeleka, ipleyiti yegraphite eguquguqukayo ye-0.6-2mm ubukhulu inokucinezelwa, nto leyo ingcono kunomatshini wokuqengqeleka we-single-layer, kodwa ngenxa yobunzima bepleyiti iya kuzisa iintsilelo zokunqunyulwa kwepleyiti, okuya kuzisa. ingxaki ekusebenziseni. Isizathu kukuba i-gas overflow ihlala iphakathi kwe-interlayer ngexesha lokucinezela, okuthintela ukudibanisa okusondeleyo phakathi kweengqimba. Indlela yokuphucula kukusombulula ingxaki yokukhupha igesi kwinkqubo yokucinezela.
Ukuqengqeleka kweplate yomgangatho omnye, nangona ipleyiti yoxinzelelo igudileyo, kodwa ingabi ngqindilili kakhulu. Xa ukubunjwa kukhulu kakhulu, ukufana kwayo kunye nokuxinana kunzima ukuqinisekisa. Ukuze wenze iiplate ezishinyeneyo, iibhodi ze-multilayer zibekwe phezulu kwaye zicinezelwe kwiibhodi ze-multilayer composite. I-binder yongezwa phakathi kweeleyile ezimbini kwaye iqengqiwe. Emva kokuqulunqa, ishushu kwi-carbonize kwaye ilukhuni i-binder. I-multilayer plate rolling method iqhutyelwa kwi-multilayer eqhubekayo yomatshini.
2, ipleyiti enomaleko omnye eqhubekayo indlela yokuqengqeleka:
Ubume berola bubandakanya: (1) ihopper yegraphite yombungu; (2) isixhobo sokutya sokungcangcazela; (3) ibhanti lokuhambisa; (4) Iirola zoxinzelelo ezine; (5) Izibini zezifudumezi; (6) i-roller yokulawula ubukhulu beshiti; Iirola zokuhombisa okanye ukwenza iipateni; (8) kunye nomqulu; (9) Imela yokusika; (10) Umqulu wemveliso ogqityiweyo.
Le ndlela yokuqengqeleka ingacinezela igraphite eguquguqukayo kumaphepha ngaphandle kwe-binder, kwaye yonke inkqubo iqhutyelwa kwizixhobo ezikhethekileyo ezixhotywe nge-roller rollers.
Inkqubo yokusebenza: igraphite ecocekileyo ephezulu ingena kwisixhobo sokutyisa kwi-hopper kwaye iwele kwibhanti yokuhambisa. Emva kokuqengqeleka kwe-roller yoxinzelelo, ukwenza ubukhulu obuthile bomgangatho wezinto eziphathekayo. Isixhobo sokufudumeza sivelisa ukufudumeza okuphezulu kobushushu ukususa irhasi eshiyekileyo kuluhlu lwezinto kunye nokwandisa igraphite enganwenwanga okokugqibela. Emva koko i-inverse eyakhiwe ekuqaleni ifakwe kwi-roller elawula ubungakanani obukhulu kwaye icinezelwe kwakhona ngokobukhulu obuchaziweyo ukuze kufumaneke ipleyiti ecaba kunye nobukhulu obufanayo kunye nobuninzi obuthile. Ekugqibeleni, emva kokusika kunye nomsiki, phakamisa umgqomo ogqityiweyo.
Oku ngasentla yinkqubo yokubumba i-graphite bipolar plate, ndiyathemba ukukunceda. Ukongezelela, izinto ze-carbonaceous ziquka i-graphite, izinto ezibunjiweyo zekhabhoni kunye nokwandisa (i-flexible) igraphite. Iipleyiti eziqhelekileyo ze-bipolar zenziwe ngegraphite eshinyeneyo kwaye zenziwe ngoomatshini kwimijelo yokuhamba kwegesi. I-graphite bipolar plate ineekhemikhali ezizinzile kunye nokuchasana okuncinci kunye ne-MEA.
Ixesha lokuposa: Oct-23-2023