Tam sim no, ntau lub teb chaws nyob ib puag ncig txhua yam ntawm kev tshawb fawb hydrogen tshiab tab tom ua haujlwm tag nrho, muaj teeb meem kev siv tshuab hauv kev nce qib kom kov yeej. Nrog rau kev nthuav dav ntawm qhov ntsuas ntawm kev tsim hluav taws xob hydrogen thiab kev khaws cia thiab kev thauj mus los, tus nqi ntawm lub zog hydrogen kuj muaj qhov chaw loj kom poob qis. Kev tshawb fawb qhia tau hais tias tag nrho tus nqi ntawm kev lag luam hluav taws xob hydrogen yuav poob ib nrab los ntawm xyoo 2030. Raws li daim ntawv tshaj tawm ua ke los ntawm International Hydrogen Energy Commission thiab McKinsey, ntau tshaj 30 lub teb chaws thiab thaj chaw tau tshaj tawm daim ntawv qhia kev rau kev tsim hluav taws xob hydrogen, thiab kev nqis peev thoob ntiaj teb hauv cov haujlwm hluav taws xob hydrogen yuav ncav cuag 300 billion US dollars los ntawm xyoo 2030.
Cov roj hydrogen cell pawg yog tsim los ntawm ntau lub roj cell cell sib sau ua ke hauv series. Lub phaj bipolar thiab membrane electrode MEA raug sib tshooj sib hloov, thiab cov foob tau muab tso rau ntawm txhua lub monomer. Tom qab raug nias los ntawm cov phaj pem hauv ntej thiab nram qab, lawv tau khi thiab khi nrog cov ntsia hlau los tsim cov roj hydrogen.
Lub phaj bipolar thiab membrane electrode MEA yog overlapped alternately, thiab cov foob tau embedded ntawm txhua monomer. Tom qab raug nias los ntawm pem hauv ntej thiab nram qab phaj, lawv tau fastened thiab fastened nrog screws los ua ib tug hydrogen roj cell stack. Tam sim no, qhov tseeb daim ntawv thov yog lubphaj bipolar ua los ntawm cov graphite dag.Lub phaj bipolar ua los ntawm hom khoom no muaj kev coj ua zoo thiab tiv taus corrosion. Txawm li cas los xij, vim yog qhov yuav tsum tau ua kom nruj ntawm lub phaj bipolar, cov txheej txheem tsim khoom xav tau ntau cov txheej txheem tsim khoom xws li resin impregnation, carbonization, graphitization thiab tom qab ntawd cov txheej txheem ntws teb, yog li cov txheej txheem tsim khoom nyuaj thiab tus nqi siab heev, Nws tau dhau los ua qhov tseem ceeb txwv tsis pub siv roj cell.
Proton pauv membraneLub roj teeb (PEMFC) tuaj yeem hloov lub zog tshuaj mus rau hauv lub zog hluav taws xob ncaj qha hauv txoj kev isothermal thiab electrochemical. Nws tsis txwv los ntawm Carnot lub voj voog, muaj qhov hloov pauv zog siab (40% ~ 60%), thiab huv thiab tsis muaj kuab paug (cov khoom feem ntau yog dej). Nws suav hais tias yog thawj lub zog muab hluav taws xob zoo thiab huv hauv xyoo pua 21st. Raws li qhov sib txuas ntawm cov hlwb ib leeg hauv PEMFC pawg, bipolar phaj feem ntau ua lub luag haujlwm ntawm kev cais cov roj sib koom ua ke ntawm cov hlwb, faib roj thiab oxidant, txhawb nqa membrane electrode thiab txuas cov hlwb ib leeg hauv series los tsim hluav taws xob circuit.
Lub sijhawm tshaj tawm: Lub Ib Hlis-10-2022