Poleiti ea bipolar ke karolo ea bohlokoa ea reactor, e nang le tšusumetso e kholo ts'ebetsong le litšenyehelong tsa reactor. Hona joale, poleiti ea bipolar e arotsoe haholo ka poleiti ea graphite, poleiti ea composite le poleiti ea tšepe ho latela thepa.
Poleiti ea bipolar ke e 'ngoe ea likarolo tsa mantlha tsa PEMFC, karolo ea eona e kholo ke ho tsamaisa khase ka har'a tšimo ea phallo ea bokaholimo, ho bokella le ho tsamaisa motlakase, mocheso le metsi a hlahisoang ke karabelo. Ho latela mofuta oa thepa, boima ba sehlopha sa PEMFC ke hoo e ka bang 60% ho isa ho 80% 'me litšenyehelo ke hoo e ka bang 30%. Ho ea ka litlhoko tsa ts'ebetso tsa poleiti ea bipolar, 'me ha ho nahanoa ka tikoloho ea karabelo ea asiti ea electrochemical ea PEMFC, poleiti ea bipolar e hlokahala hore e be le litlhoko tse phahameng tsa ho tsamaisa motlakase, ho tiea ha moea, thepa ea mechini, ho hanyetsa mafome, jj.
Poleiti e habeli ho ea ka thepa e arotsoe ka mekhahlelo e meraro haholo-holo poleiti ea graphite, poleiti e kopaneng, poleiti ea tšepe, poleiti e habeli ea graphite ke eona e sebelisoang haholo hona joale poleiti e habeli ea PEMFC ea lapeng, conductivity ea motlakase, conductivity ea mocheso, botsitso bo botle le ho hanyetsa ts'enyeho le ts'ebetso e 'ngoe empa thepa e fokolang ea mechini, brittleness, mathata a machining a lebisa mathateng a theko e phahameng a aparetsoeng ke bahlahisi ba bangata.
Graphitepoleiti ea bipolarselelekela:
Lipoleiti tsa bipolar tse entsoeng ka graphite li na le motlakase o motle oa ho tsamaisa motlakase, ho tsamaisa mocheso le ho hanyetsa mafome, 'me ke lipoleiti tsa bipolar tse sebelisoang haholo ho PEMFCS. Leha ho le joalo, mefokolo ea tsona le eona e totobetse haholoanyane: mocheso oa graphitization oa poleiti ea graphite hangata o phahame ho feta 2500℃, e leng se hlokang ho etsoa ho latela mokhoa o thata oa ho futhumatsa, 'me nako e telele; Ts'ebetso ea ho sebetsa e lieha, potoloho e telele, 'me ho nepahala ha mochini ho phahame, e leng se fellang ka litšenyehelo tse phahameng tsa poleiti ea graphite; Graphite e fokola, poleiti e felileng e hloka ho tšoaroa ka hloko, kopano e thata; Graphite e na le masoba, kahoo lipoleiti li hloka ho ba botenya ba limilimithara tse 'maloa ho lumella likhase ho arohana, e leng se fellang ka boima bo tlase ba thepa ka boeona, empa e be sehlahisoa se boima se felileng.
Ho lokisa graphitepoleiti ea bipolar：
Phofo ea toner kapa graphite e kopanngoa le resin e nang le graphitized, e entsoe ka khatiso, 'me e entsoe ka graphitized mochesong o phahameng (hangata ho 2200 ~ 2800C) moeeng o fokotsang kapa tlas'a maemo a vacuum. Ebe, poleiti ea graphite e koaheloa ho koala lesoba, ebe mochini oa taolo ea linomoro o sebelisoa ho sebetsana le tsela e hlokahalang ea khase holim'a eona. GRAPHIZATION EA MOCHESO O MOHOLO LE HO SEBELISA LIKENELLE TSA KHASE KE MABAKA A MAHOLO A LITŠENYEHO TSE PHAHAMENG TSA LIPOLEITE TSA BIPOLAR, KA HO SEBELISA LITŠENYEHO HO BAKENG SA hoo e ka bang 60% EA LITŠENYEHO TSOHLE TSA LISELE TSA FUEL.
Poleiti ea ho ferekana kelellongke e 'ngoe ea likarolo tsa bohlokoa ka ho fetisisa sehlopheng sa lisele tsa mafura. Mesebetsi ea eona e meholo ke e latelang:
1, Khokahano ea betri e le 'ngoe
2, Fana ka peterole (H2) le moea (02)
3, Pokello ea hona joale le ho tsamaisoa ha thepa
4, Tšehetso ea stack le MEA
5, Ho tlosa mocheso o hlahisoang ke karabelo
6, Hlakola metsi a hlahisitsoeng ka karabelo
Nako ea poso: Phupu-29-2022