Bipolar plate ke karolo ea mantlha ea reactor, e nang le tšusumetso e kholo ts'ebetsong le litšenyehelong tsa mochini. Hajoale, poleiti ea bipolar e arotsoe haholo ka poleiti ea graphite, poleiti e kopaneng le poleiti ea tšepe ho latela thepa.
Bipolar plate ke e 'ngoe ea likarolo tsa mantlha tsa PEMFC, karolo ea eona e ka sehloohong ke ho tsamaisa khase ka lebaleng la phallo ea metsi, ho bokella le ho tsamaisa hona joale, mocheso le metsi a hlahisoang ke karabelo. Ho ipapisitsoe le mofuta oa thepa, boima ba qubu ea PEMFCs bo ka ba 60% ho isa ho 80% mme litšenyehelo ke tse ka bang 30%. Ho ea ka litlhoko tsa ts'ebetso ea poleiti ea bipolar, 'me ha ho nahanoa ka tikoloho ea acidic electrochemical reaction ea PEMFC, poleiti ea bipolar e hlokeha ho ba le litlhoko tse phahameng tsa motlakase oa motlakase, ho tiisa moea, thepa ea mochine, ho hanyetsa kutu, joalo-joalo.
Letlapa le habeli ho latela thepa e arotsoe ka mekhahlelo e meraro ea poleiti ea graphite, poleiti e kopantsoeng, poleiti ea tšepe, poleiti e habeli ea graphite ke eona e sebelisoang haholo hajoale PEMFC habeli, conductivity ea motlakase, conductivity ea mocheso, botsitso bo botle le ho hanyetsa kutu le ts'ebetso e 'ngoe. empa thepa e fokolang ea mechine, mathata a brittle, 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 motlakase, mocheso oa mocheso le ho hanyetsa ho bola, 'me ke lipoleiti tsa bipolar tse sebelisoang ka ho fetisisa ho PEMFCS. Leha ho le joalo, mefokolo ea eona e boetse e totobetse haholoanyane: mocheso oa graphitization oa poleiti ea graphite hangata o phahametse 2500 ℃, e lokelang ho etsoa ho latela mokhoa o tiileng oa ho futhumatsa, 'me nako e telele; Ts'ebetso ea machining e lieha, potoloho e telele, 'me ho nepahala ha mochine ho phahame, ho fella ka theko e phahameng ea poleiti ea graphite; Graphite e fokola, poleiti e phethiloeng e hloka ho tšoaroa ka hloko, kopano e thata; Graphite e na le porous, kahoo lipoleiti li lokela ho ba limilimithara tse 'maloa ho lumella likhase hore li arohane, e leng se etsang hore ho be le boima bo tlaase ba thepa ka boeona, empa sehlahisoa se felileng se boima haholo.
Tokiso ea graphitepoleiti ea bipolar:
Toner kapa phofo ea graphite e kopantsoe le resin ea graphitized, mochine oa khatiso o entsoeng, le graphitized ka mocheso o phahameng (hangata ho 2200 ~ 2800C) sebakeng se fokotsang kapa tlas'a maemo a vacuum. Joale, poleiti ea graphite e kenngoa ho koala lesoba, ebe mochine o laolang lipalo o sebelisoa ho sebetsana le tsela e hlokahalang ea khase holim'a eona. KERAFITIZATION EA MOCHECHE O HOLIMO LE HO SEBELISA LICHANELE TSA KHASE KE MABAKA A MOR'A TLHOKOMELISO EA LITLHAKISO TSE PHAHAMENG TSA LIPOLATE TSA BIPOLAR, LE MACHIN ACCOUNTING FOR hoo e ka bang 60% EA TESTHEHETSO EA LESELI LA MAFUTA.
Letlapa la Bipolarke e 'ngoe ea likarolo tse ka sehloohong tsa peterole cell stack. Mesebetsi ea eona ea mantlha ke e latelang:
1. Khokahano ea betri e le 'ngoe
2, Tsamaisa mafura (H2) le moea (02)
3. Pokello ea hona joale le tsamaiso
4. Tšehetso ea stack le MEA
5, Ho tlosa mocheso o hlahisoang ke karabelo
6, Hlakola metsi a hlahisitsoeng karabelong
Nako ea poso: Jul-29-2022