ʻO ka pā bipolar ka mea nui o ka reactor, he hopena nui i ka hana a me ke kumukūʻai o ka reactor. I kēia manawa, hoʻokaʻawale nui ʻia ka pā bipolar i ka pā graphite, ka pā hui a me ka pā metala e like me ka mea.
ʻO ka pā bipolar kekahi o nā ʻāpana koʻikoʻi o PEMFC, ʻo kāna hana nui ka lawe ʻana i ke kinoea ma ke kahua kahe o ka ʻili, hōʻiliʻili a hoʻokele i ka manawa, ka wela a me ka wai i hana ʻia e ka hopena. Ma muli o ke ʻano mea, ʻo ke kaumaha o ka waihona PEMFC ma kahi o 60% a 80% a ʻo ke kumukūʻai ma kahi o 30%. E like me nā koi hana o ka pā bipolar, a me ka noʻonoʻo ʻana i ke kaiapuni electrochemical reaction acid o PEMFC, pono ka pā bipolar e loaʻa i nā koi kiʻekiʻe no ka conductivity uila, ka paʻa o ka ea, nā waiwai mechanical, corrosion resistance, etc.
ʻO ka pā pālua e like me nā mea i hoʻokaʻawale ʻia i ʻekolu mau ʻāpana graphite plate, composite plate, metal plate, graphite double plate ka mea maʻamau i hoʻohana ʻia i kēia manawa home PEMFC pālua pā, conductivity uila, thermal conductivity, kūpaʻa maikaʻi a me ka pale ʻana a me nā hana ʻē aʻe. akā ʻaʻole maikaʻi nā waiwai mechanical, brittle, machining pilikia e alakaʻi i nā pilikia kumukūʻai kiʻekiʻe i hoʻopilikia ʻia e nā mea hana.
graphitepāʻālua bipolarhoʻolauna:
ʻO nā pā bipolar i hana ʻia me ka graphite he maikaʻi ka hoʻokele uila, ka wela a me ka pale ʻana i ka corrosion, a ʻo ia nā papa bipolar i hoʻohana pinepine ʻia ma PEMFCS. Eia nō naʻe, ʻoi aku ka ʻike o kona mau hemahema: ʻoi aku ka kiʻekiʻe o ka graphitization o ka pā graphite ma mua o 2500 ℃, pono e hana ʻia e like me ke kaʻina hana hoʻomehana koʻikoʻi, a lōʻihi ka manawa; He lohi ke kaʻina hana machining, lōʻihi ka pōʻai, a he kiʻekiʻe ka pololei o ka mīkini, e hopena i ke kumukūʻai kiʻekiʻe o ka pā graphite; He palupalu ka graphite, pono e mālama pono ʻia ka pā i hoʻopau ʻia, paʻakikī ka hui ʻana; He porous ka graphite, no laila he mau millimeters ka mānoanoa o nā papa e hiki ai i nā kinoea ke hoʻokaʻawale, e hopena i ka haʻahaʻa haʻahaʻa o ka mea ponoʻī, akā ʻoi aku ka kaumaha o ka huahana.
Ka hoomakaukau ana i ka graphitepāʻālua bipolar：
Hoʻohui ʻia ka toner a i ʻole ka pauka graphite me ka resin graphitized, kaomi i hoʻokumu ʻia, a graphitized ma ke kiʻekiʻe wela (maʻamau ma 2200 ~ 2800C) i kahi ea hoʻemi a i ʻole ma lalo o nā kūlana vacuum. A laila, hoʻopili ʻia ka pā graphite e hoʻopaʻa i ka lua, a laila hoʻohana ʻia ka mīkini hoʻomalu helu e hana i ke ala kinoea i koi ʻia ma luna o kona ʻili. ʻO ka GRAPHITIZATION TEMPERATURE kiʻekiʻe a me ka mīkini ʻana i nā CHANNEL GAS KE kumu nui o ke kumu kūʻai kiʻekiʻe o nā papa bipolar, me ka helu ʻana i ka mīkini no kahi kokoke i 60% o ka nui o ke kumu kūʻai o ka wahie.
Pāpā bipolarʻo ia kekahi o nā mea nui loa i loko o ka waihona wahie. ʻO kāna mau hana nui penei:
1、Hoʻohui pākahi pākahi
2, Hāʻawi i ka wahie (H2) a me ka ea (02)
3、Ka hōʻiliʻili a me ka lawe ʻana i kēia manawa
4、Kākoʻo ahu a me MEA
5、E wehe i ka wela i hana ʻia e ka hopena
6、E hoʻokahe i ka wai i hana ʻia i ka hopena
Ka manawa hoʻouna: Iulai-29-2022