Inqubo yokugoqa ye-graphite bipolar plate

I-bipolar plate, eyaziwa nangokuthi i-collector plate, ingenye yezingxenye ezibalulekile ze-fuel cell. Inemisebenzi nezakhiwo ezilandelayo: ukuhlukanisa uphethiloli kanye ne-oxidizer, ukuvimbela ukungena kwegesi; Qoqa futhi uqhube ukusebenza kwamanje, okuphezulu; Ishaneli yokugeleza eklanywe futhi yacutshungulwa ingasabalalisa ngokulinganayo igesi kungqimba yokusabela ye-electrode yokusabela kwe-electrode. Kunezinqubo ezimbalwa zokugingqa zamapuleti e-graphite bipolar.

1, indlela yokugoqa ipuleti elinezingqimba eziningi:

Inqubo yokusebenza yomshini wokugoqa oqhubekayo onezingqimba eziningi: i-veneer idonswa entweni yokusonta ye-veneer, futhi okunamathelayo ezinhlangothini zombili zomhlabathi nge-binder coating roller, kanye ne-winding roll kanye ne-veneer kuhlanganiswe ukuze kube kathathu. -ipuleti elijiyile, futhi igebe phakathi kwama-roller ligoqeka libe ukujiya okuthile. Bese uphakela ku-heater ukuze uyishise futhi yome. Ngokulawula ukujiya, gingqa, lungisa ukujiya ukuze ufinyelele usayizi oshiwo, bese uthumela edivayisini yokuthosa ukuze kugaziswe. Lapho i-binder i-carbonized, igcina icindezelwe ibe yisimo nge-roller yokucindezela.

Ukusebenzisa indlela yokugoqa eqhubekayo, ipuleti le-graphite eliguquguqukayo lika-0.6-2mm ubukhulu lingacindezelwa, elingcono kunomshini wokugoqa onengqimba eyodwa, kodwa ngenxa yobukhulu bepuleti kuzoletha nokushiyeka kokukhumula ipuleti elinezingqimba, okuzoletha inkinga ekusebenziseni. Isizathu siwukuthi ukuchichima kwegesi kuhlala kuphakathi kwe-interlayer ngesikhathi sokucindezela, okuvimbela ukubopha okuseduze phakathi kwezingqimba. Indlela yokuthuthukisa iwukuxazulula inkinga yegesi ephumayo ohlelweni lokucindezela.

I-single-layer plate rolling, nakuba ipuleti lokucindezela libushelelezi, kodwa aliningi kakhulu. Lapho ukubunjwa kukhulu kakhulu, ukufana kwayo kanye nokuminyana kunzima ukuqinisekisa. Ukuze wenze amapuleti awugqinsi, amabhodi e-multilayer agxiliwe futhi acindezelwe emabhodini ahlanganisiwe we-multilayer. I-binder yengezwa phakathi kwezingqimba ezimbili ngayinye bese igoqwa. Ngemuva kokwakhiwa, iyashiswa i-carbonize futhi iqinise i-binder. Indlela yokugoqa ipuleti ye-multilayer yenziwa emshinini wokugoqa oqhubekayo we-multilayer.

2, indlela eqhubekayo yokugingqika yepuleti lesendlalelo esisodwa:

Isakhiwo se-roller siqukethe: (1) i-hopper ye-worm graphite; (2) Isisetshenziswa sokudlidliza; (3) Ibhande lokuthutha; (4) Amarola okucindezela amane; (5) Ipheya lezifudumezi; (6) i-roller yokulawula ukujiya kweshidi; Ama-Roller wokugqamisa noma ukwenza iphethini; (8) futhi roll; (9) Umbese wokusika; (10) Umqulu womkhiqizo oqediwe.

Le ndlela yokugoqa ingacindezela i-graphite eguquguqukayo ibe ngamashidi ngaphandle kwanoma iyiphi i-binder, futhi yonke le nqubo yenziwa ngemishini ekhethekile efakwe ama-roller roller.

Inqubo yokusebenza: i-graphite yokuhlanzeka okuphezulu ingena kudivayisi yokudla isuka ku-hopper bese iwela ebhandeni lokuthutha. Ngemuva kokugingqa kwe-roller yokucindezela, ukwakha ukushuba okuthile kongqimba lwezinto ezibonakalayo. Idivayisi yokushisisa ikhiqiza ukushisa okuphezulu kwezinga lokushisa ukuze isuse igesi esele kungqimba yezinto ezibonakalayo futhi yandise igraphite enganwetshiwe okokugcina. Bese into ephambene eyakhiwe ekuqaleni ifakwa kurola elawula usayizi wokujiya bese icindezelwa futhi ngokuya ngosayizi oshiwo ukuze kutholwe ipuleti eliyisicaba elinogqinsi olufana nokuminyana okuthile. Ekugcineni, ngemva kokusika nge-cutter, phakamisa umgqomo oqediwe.

Okungenhla kuyinqubo yokugoqa ye-graphite bipolar plate, ngithemba ukukusiza. Ngaphezu kwalokho, izinto ze-carbonaceous zihlanganisa i-graphite, izinto zekhabhoni ezibunjiwe kanye ne-graphite enwetshiwe (eguquguqukayo). Amapuleti avamile e-bipolar enziwe nge-graphite eminyene futhi afakwe ngomshini eziteshini zokugeleza kwegesi. Ipuleti le-graphite bipolar linezindawo zamakhemikhali ezizinzile kanye nokumelana nokuthintana okuncane ne-MEA.