Hav nyob ntawd! Raws li tus neeg muag khoom ntawm Graphite Bipolar Phaj, Kuv tau txais ntau cov lus nug txog yuav ua li cas cov phaj no ua haujlwm hauv alkaline ib puag ncig. Yog li, kuv xav tias kuv yuav rhuav tshem nws hauv qhov blog no.
Ua ntej tshaj, cia peb tham txog dab tsi graphite bipolar daim hlau yog. Cov phaj no yog ib qho tseem ceeb hauv cov roj hlwb. Lawv ua haujlwm ntau yam, xws li cais cov roj reactant, sib sau thiab ua cov hluav taws xob tam sim no, thiab muab qhov chaw txaus rau cov reactants. Graphite yog ib qho kev xaiv nrov rau cov phaj bipolar vim tias nws muaj hluav taws xob zoo, tshuaj lom neeg ruaj khov, thiab yog qhov hnyav.
Tam sim no, thaum nws los txog rau alkaline ib puag ncig, tej yam tau nthuav me ntsis ntxiv. Cov kev daws teeb meem alkaline feem ntau muaj pH siab, feem ntau yog siab dua 7. Cov cheeb tsam no tuaj yeem pom nyob rau hauv ntau yam kev lag luam, nrog rau qee hom roj hlwb, xws li alkaline roj hlwb (AFCs).
Ib qho tseem ceeb ntawm kev ua tau zoo ntawm graphite bipolar daim hlau hauv alkaline ib puag ncig yog lawv cov tshuaj lom neeg ruaj khov. Graphite feem ntau paub txog nws cov tshuaj tiv thaiv siab, tab sis nyob rau hauv cov xwm txheej alkaline, nws tseem tuaj yeem ntsib qee qhov teeb meem. Qee qhov kev daws teeb meem alkaline yuav muaj qee yam ions lossis tshuaj lom neeg uas tuaj yeem cuam tshuam nrog cov graphite dhau sijhawm. Txawm li cas los xij, cov xov xwm zoo yog qhov zoo - ua graphite bipolar daim hlau tuaj yeem tiv taus cov kev cuam tshuam no rau ntau qhov.
Hais txog hluav taws xob conductivity, graphite bipolar daim hlau tuav lawv cov kev ua tau zoo heev nyob rau hauv ib puag ncig alkaline. Hluav taws xob conductivity yog qhov tseem ceeb rau kev ua haujlwm zoo ntawm cov roj hlwb, raws li nws tso cai rau kev khiav ntawm electrons. Lub siab - purity graphite siv nyob rau hauv peb cov bipolar daim hlau ua kom ntseeg tau tias txawm nyob rau hauv lub xub ntiag ntawm alkaline tshuaj, cov hluav taws xob kuj tsis tshua muaj, ua rau cov roj cell los tsim hluav taws xob zoo.
Lwm qhov tseem ceeb yog lub zog mechanical. Alkaline ib puag ncig tuaj yeem ua rau o lossis degradation ntawm cov ntaub ntawv. Tab sis graphite bipolar daim hlau muaj kev ruaj ntseg zoo. Lawv tuaj yeem tiv taus qhov kev ntxhov siab ntawm lub cev uas tuaj nrog rau hauv cov tshuaj alkaline, xws li kev hloov siab thiab ntws - induced rog. Qhov no txhais tau hais tias lawv tuaj yeem tswj tau lawv cov duab thiab cov qauv siv lub sijhawm ntev, uas yog qhov tseem ceeb rau lub sijhawm ntev - kev ua haujlwm ntawm cov roj cell.
Cia wb mus saib qee qhov tiag - daim ntawv thov ntiaj teb. Hauv alkaline roj hlwb, graphite bipolar daim hlau ua lub luag haujlwm tseem ceeb. AFCs paub txog lawv cov kev ua haujlwm siab thiab tus nqi qis dua piv rau lwm hom roj hlwb. Cov graphite bipolar daim hlau nyob rau hauv cov hlwb yuav tsum ua tau zoo nyob rau hauv ib tug alkaline electrolyte, uas feem ntau yog ib tug potassium hydroxide (KOH) tov. Peb cov graphite bipolar daim hlau tau raug sim hauv AFCs thiab tau pom tias muaj kev ua tau zoo heev, muab lub platform ruaj khov rau cov tshuaj tiv thaiv electrochemical.
Tam sim no, kuv xav qhia qee yam ntawm peb cov khoom muaj feem xyuam. Peb kuj muab PECVD Graphite Nkoj thiab Graphite Chuck. Cov khoom no kuj tau ua nrog siab - zoo graphite thiab siv nyob rau hauv ntau daim ntawv thov nyob rau hauv lub photovoltaic thiab roj cell industries. Thiab ntawm chav kawm, peb Roj Cell Graphite Bipolar Plate yog lub hnub qub ntawm cov yeeb yam thaum nws los txog rau roj cell daim ntaub ntawv.
Thaum nws los txog rau corrosion kuj nyob rau hauv alkaline ib puag ncig, peb graphite bipolar daim hlau muaj ob peb tricks txog lawv lub tes tsho. Peb siv cov txheej txheem tsim tshwj xeeb los txhim kho cov khoom nto ntawm daim hlau. Qhov no pab tsim cov txheej txheem tiv thaiv uas txo cov kev sib cuag ntawm cov graphite thiab cov tshuaj alkaline, yog li txo qhov kev pheej hmoo ntawm corrosion. Tsis tas li ntawd, purity ntawm graphite peb siv yog ua tib zoo tswj. High - purity graphite muaj tsawg impurities uas yuav muaj feem cuam tshuam nrog cov tshuaj alkaline, ntxiv txhim kho corrosion kuj.
Thermal stability kuj yog ib qho tseem ceeb los xav txog. Hauv cov roj hlwb, cov cua sov yog tsim thaum lub sij hawm cov tshuaj tiv thaiv electrochemical. Graphite bipolar daim hlau muaj cov thermal conductivity zoo, uas tso cai rau lawv kom tshem tawm cov cua sov zoo. Nyob rau hauv ib puag ncig alkaline, qhov thermal stability tseem ceeb dua, vim qee qhov kev daws teeb meem alkaline yuav muaj qhov sib txawv ntawm cov cua sov - hloov cov yam ntxwv piv rau lwm cov xov xwm. Peb cov graphite bipolar daim hlau tuaj yeem tswj cov cua sov uas tsim hauv cov roj hluav taws xob tsis tas yuav poob lawv qhov kev ua tau zoo, kom ntseeg tau tias cov roj hluav taws xob ua haujlwm nyob rau hauv qhov ntsuas kub zoo.
Nyob rau hauv cov nqe lus ntawm flow teb tsim, peb graphite bipolar daim hlau yog engineered los muab ib tug uniform tis ntawm reactant gases nyob rau hauv alkaline roj hlwb. Cov dej ntws ntawm cov phiaj yog ua tib zoo tsim los xyuas kom meej tias cov hydrogen thiab oxygen (lossis cua) tuaj yeem ncav cuag cov txheej txheem catalyst sib npaug. Qhov no yog qhov tseem ceeb heev rau kev ua kom zoo tshaj plaws ntawm cov tshuaj tiv thaiv electrochemical. Nyob rau hauv ib qho chaw alkaline, qhov chaw tsim qauv tsim yuav tsum muaj kev tiv thaiv rau cov teebmeem ntawm cov tshuaj alkaline, xws li kev tso dej ntawm cov ntsev los yog tsim cov npuas. Peb cov phaj yog tsim los tiv thaiv cov teeb meem no thiab tswj kom muaj kev sib luag ntawm cov reactants.
Tam sim no, yog tias koj nyob rau hauv kev ua lag luam rau siab - zoo graphite bipolar daim hlau rau koj cov roj cell daim ntawv thov, tshwj xeeb tshaj yog cov kev khiav hauj lwm nyob rau hauv alkaline ib puag ncig, peb xav hnov los ntawm koj. Peb cov khoom tau tsim thiab tsim nrog cov qauv siab tshaj plaws kom ntseeg tau tias kev ua haujlwm zoo tshaj plaws hauv txhua qhov xwm txheej. Txawm hais tias koj yog ib lub chaw tshawb fawb me me lossis loj - cov neeg siv kev lag luam, peb tuaj yeem muab cov kev daws teeb meem rau koj. Yog li, tsis txhob yig mus cuag thiab pib sib tham txog koj cov cai tshwj xeeb. Peb nyob ntawm no los pab koj kom tau txais txiaj ntsig zoo tshaj plaws ntawm koj cov roj cell.
Hauv kev xaus, graphite bipolar daim hlau tau pom qhov ua tau zoo hauv qhov chaw alkaline. Lawv cov tshuaj stability, hluav taws xob conductivity, mechanical zog, thiab lwm yam khoom ua rau lawv ib tug txhim khu kev qha kev xaiv rau roj cell daim ntaub ntawv nyob rau hauv xws li mob. Yog tias koj muaj lus nug lossis xav yuav peb cov graphite bipolar daim hlau, thov koj xav tiv tauj peb. Peb tab tom tos ntsoov yuav ua haujlwm nrog koj los coj koj cov phiaj xwm roj rau qib tom ntej.
Cov ntaub ntawv:
Kev tshawb fawb txog kev ua tau zoo ntawm Graphite Bipolar Phaj hauv Alkaline Roj Cells, Phau ntawv Journal of Roj Cell Science thiab Technology
Alkaline Roj Cell Technology thiab Lub Luag Haujlwm ntawm Graphite Bipolar Phaj, International Journal of Hydrogen Zog