I-Bipolar plate iyingxenye eyinhloko ye-reactor, enomthelela omkhulu ekusebenzeni nasezindlekweni ze-reactor. Njengamanje, ipuleti le-bipolar lihlukaniswe ikakhulukazi ipuleti le-graphite, ipuleti eliyinhlanganisela nepuleti lensimbi ngokuya ngezinto.
Ipuleti le-Bipolar lingenye yezingxenye eziyinhloko ze-PEMFC, indima yayo eyinhloko ukuthutha igesi endaweni yokugeleza kwamanzi, ukuqoqa nokuqhuba amandla amanje, ukushisa namanzi akhiqizwa ukusabela. Kuye ngohlobo lwempahla, isisindo sesitaki se-PEMFC silinganiselwa ku-60% kuya ku-80% futhi izindleko zingama-30%. Ngokwezidingo zokusebenza zepuleti le-bipolar, futhi kucatshangelwa indawo ene-acidic electrochemical reaction ye-PEMFC, ipuleti le-bipolar liyadingeka ukuthi libe nezidingo eziphakeme zokuqhutshwa kukagesi, ukuqina komoya, izakhiwo zemishini, ukumelana nokugqwala, njll.
Ipuleti kabili ngokwezinto zokwakha ikakhulukazi ihlukaniswe izigaba ezintathu ipuleti ye-graphite, ipuleti eliyinhlanganisela, ipuleti lensimbi, ipuleti eliphindwe kabili legraphite lisetshenziswa kakhulu njengamanje ipuleti eliphindwe kabili le-PEMFC elifuywayo, ukuqhutshwa kukagesi, ukuguquguquka okushisayo, ukuzinza okuhle kanye nokumelana nokugqwala nokunye ukusebenza. kodwa izakhiwo zemishini ezimpofu uma kuqhathaniswa, ubunzima obungaqinile, bemishini buholela ezinkingeni zezindleko eziphakeme ezikhungethwe abakhiqizi abaningi.
I-graphiteipuleti le-bipolarisingeniso:
Amapuleti e-bipolar enziwe nge-graphite ane-conductivity enhle kagesi, i-thermal conductivity kanye nokumelana nokugqwala, futhi amapuleti e-bipolar asetshenziswa kakhulu ku-PEMFCS. Kodwa-ke, ukungalungi kwayo nakho kusobala kakhulu: izinga lokushisa le-graphitization lepuleti le-graphite livame ukuba ngaphezu kuka-2500 ℃, okudingeka kwenziwe ngokuvumelana nenqubo yokushisa eqinile, futhi isikhathi side; Inqubo yokwenza imishini ihamba kancane, umjikelezo mude, futhi ukunemba komshini kuphezulu, okuholela ezindleko eziphakeme ze-graphite plate; I-graphite ibuthakathaka, ipuleti eliqediwe lidinga ukuphathwa ngokucophelela, ukuhlanganisa kunzima; I-graphite i-porous, ngakho-ke amapuleti kufanele abe ngamamilimitha ambalwa ukuze avumele amagesi ukuba ahlukane, okuholela ekukhuleni okuphansi kwezinto ngokwazo, kodwa umkhiqizo ophelile osindayo.
Ukulungiswa kwe-graphiteipuleti le-bipolar:
I-toner noma i-graphite powder ixubene ne-graphitized resin, i-press yakhiwe, futhi ifakwe i-graphitized ekushiseni okuphezulu (imvamisa ku-2200 ~ 2800C) endaweni yokunciphisa noma ngaphansi kwezimo ze-vacuum. Khona-ke, ipuleti le-graphite liyafakwa ukuze kuvalwe imbobo, bese umshini wokulawula izinombolo usetshenziselwa ukucubungula umzila wegesi odingekayo endaweni yawo. UKUHLELA OKUPHEZULU KWETHEMPERATURE NOKUKHISHWA KWAMASHISHI YEGASI KUYIZIZATHU EZISEMQOKA ZEZINDLEKO EZISEPHEZULU ZAMAPLATES E-BIPOLAR, NGOKUBALA NGOMCHITHO NGOKUCELA U-60% WEZONKE IZINDLEKO ZAMAFUTHA.
Ipuleti le-Bipolaringenye yezingxenye ezisemqoka kakhulu ku-fuel cell stack. Imisebenzi yayo eyinhloko imi kanje:
1. Ukuxhumeka kwebhethri elilodwa
2, Letha amafutha (H2) nomoya (02)
3, Ukuqoqwa nokuqhutshwa kwamanje
4, Isitaki sokusekela kanye ne-MEA
5, Ukususa ukushisa okukhiqizwa ukusabela
6, Khipha amanzi akhiqizwe ekuphenduleni
Isikhathi sokuthumela: Jul-29-2022