Roj teeb Electrode Txheej Corona Treater: Ua kom muaj lub ntsej muag zoo sib xws rau kev ua tau zoo dua
Kev hloov pauv thoob ntiaj teb mus rau lub tsheb hluav taws xob (EVs) thiab lub zog tauj dua tshiab tau tso cov kev xav tau uas tsis tau muaj dhau los ntawm lithium{0}}ion roj teeb thev naus laus zis. Nyob rau hauv lub plawv ntawm lub kiv puag ncig no yog ib qho tseem ceeb, tab sis feem ntau overlooked, manufacturing txheej txheem: electrode txheej. Kev ua tau zoo, kev ua neej ntev, thiab kev nyab xeeb ntawm txhua lub roj teeb ntawm tes yog nyob ntawm qhov zoo thiab qhov sib xws ntawm nws cov electrodes. Ib tug tseem ceeb enabler nyob rau hauv ua kom tiav no perfection yog lubTus kws kho mob Corona, ib tug sophisticated nto kho system tsim los xyuas kom meej flawless txheej adhesion.
Adhesion Challenge nyob rau hauv Roj Teeb Manufacturing
Lub roj teeb hluav taws xob raug tsim muaj cov ntawv hlau nyias (txhuas lub rooj sablaj rau cathode, tooj liab rau lub anode) coated nrog cov slurry complex. Cov slurry no muaj cov khoom siv (xws li, NMC, LFP, lossis Graphite), cov khoom siv ntxiv, thiab cov khoom siv polymer yaj hauv cov kuab tshuaj. Qhov kev sib tw yog tias cov ntawv hlau no muaj lub zog qis qis, ua rau lawv hydrophobic thiab oleophobic. Qhov qis- lub zog saum npoo tiv thaiv ntub dej, ua rau cov dej los yog cov kuab tshuaj-raws li slurry mus rau cov hlaws es tsis txhob sib kis-zoo li dej ntawm lub tsheb hood.
Tsis zoo wettability coj ncaj qha mus rau:
Tsis yog -Uniform Txheej:Variations nyob rau hauv slurry thickness tsim kub me ntsis thiab inconsistent tam sim no ceev.
Delamination:Cov khoom siv qhuav qhuav tuaj yeem cais tawm ntawm cov ntawv ci thaum caij tsheb kauj vab, calendering, lossis slitting.
Nce Internal Resistance:Kev sib cuag tsis zoo ntawm cov ntawv ci thiab cov khoom siv ua haujlwm impedes electron ntws.
Txo Muaj Peev Xwm thiab Lub Zog:Cov coatings tsis sib xws ua rau cov khoom siv tsis zoo thiab kev thauj mus los tsis zoo.
Kev puas tsuaj loj:Kev delamination tuaj yeem ua rau muaj kev cuam tshuam luv luv, ua rau muaj kev puas tsuaj sai thiab ua rau muaj kev pheej hmoo ntawm kev nyab xeeb.
Kev kho mob Corona muab kev daws li cas
Kev kho mob Corona yog ib qho cuab yeej technology atmospheric plasma uas tam sim thiab meej hloov cov khoom ntawm cov ntawv ci yam tsis muaj kev cuam tshuam rau nws cov khoom siv ntau yam.
Txheej txheem:
1. Cov ntawv hlau liab qab tau dhau los ntawm cov menyuam hauv av.
2. Lub siab - zaus, siab -voltage electrode, nyob tsuas yog millimeters saum cov ntawv ci, tsim kom muaj hluav taws xob muaj zog.
3. Daim teb no ionizes huab cua nyob ib puag ncig, tsim kom muaj kev tswj hwm "corona tawm" ntawm plasma- huab cua ions, hluav taws xob, thiab cov molecules zoo siab.
4. Raws li cov ntawv ci dhau los ntawm cov kab mob corona no, lub plasma bombards nws nto.
Kev Tshawb Fawb Txog Kev Txhim Kho Adhesion:
Lub plasma bombardment no ua tiav ob qho kev cuam tshuam tseem ceeb:
1. Surface Activation (Increasing Surface Energy):Lub siab -cov khoom siv hluav taws xob hauv cov ntshav plasma rhuav tshem cov molecular bonds ntawm cov ntawv ci. Tom qab ntawd lawv ua haujlwm rau saum npoo los ntawm kev txuas cov tshuaj polar pawg (feem ntau hydroxyl -OH thiab carbonyl C=O pawg). Qhov no ua rau kom lub zog saum npoo ntawm cov ntawv ci, hloov nws los ntawm hydrophobic mus rau hydrophilic. Lub slurry tam sim no tuaj yeem nthuav tawm tag nrho thiab sib npaug, ua tiav cov dej ntub zoo.
2. Micro-Etching (Enhancing Mechanical Bonding):Lub plasma lub cev etches cov ntawv ci saum npoo ntawm lub microscopic, tsim kom muaj kev sib txuas loj ntawm cov ncov thiab hav. Qhov kev ntxhib los mos no ua rau muaj qhov ua tau zoo ntawm thaj chaw zoo, muab cov khoom siv zoo tshaj plaws "tus yuam sij" rau cov slurry txhawm rau txhawm rau.
Kev sib xyaw ua ke ntawm kev ua kom muaj tshuaj lom neeg thiab micro-etching tsim ib qho pristine, siab - zog nto uas tsim ib qho tshwj xeeb muaj zog thiab zoo sib xws nrog cov electrode slurry.
Cov txiaj ntsig tseem ceeb ntawm kev sib koom ua ke tus kws kho mob Corona
Rau cov tuam txhab roj teeb, kev koom ua ke tus kws kho mob corona rau hauv cov kab txheej txheej yog ib qho kev nqis peev uas tau txais txiaj ntsig los ntawm cov khoom lag luam zoo thiab kev ua haujlwm zoo.
Guaranteed Uniform Adhesion:Tshem tawm de- ntub dej thiab ua kom lub tsho hnyav zoo ib yam thoob plaws tag nrho qhov dav thiab qhov ntev ntawm cov ntawv ci, uas yog qhov tseem ceeb rau kev sib npaug ntawm tes.
Enhanced Battery Performance:Uniform electrodes ua rau kev kwv yees electrochemical tus cwj pwm, lub zog ntau dua, lub neej voj voog ruaj khov, thiab muaj peev xwm zoo dua.
Txhim kho ntau lawm yield:Los ntawm kev tshem tawm cov txheej txheem tsis xws luag thiab delamination downstream, manufacturers pom qhov txo qis hauv seem thiab rov ua haujlwm.
Txheej txheem Flexibility:Cov kws kho mob corona niaj hnub no tau txais txiaj ntsig zoo, tso cai rau cov tswv lag luam los kho lub zog thiab ntau npaum li cas kom haum rau ntau hom ntawv ci, qhov dav, thiab kab nrawm seamlessly.
Qhuav thiab Solvent- Txheej Txheem Dawb:Raws li cov txheej txheem qhuav, inline, kev kho mob corona ua raws li cov qauv kev tsim khoom huv si thiab tsis qhia cov tshuaj lossis VOCs.
Xaus: Ib qho tsis yog -Txoj Kev Sib Tham rau Kev Zoo
Hauv kev sib tw thiab kev ua tau zoo - tau tsav lub ntiaj teb ntawm kev tsim cov roj teeb siab heev, tawm hauv qhov chaw npaj rau lub caij nyoog tsis yog ib qho kev xaiv. Tus kws kho mob corona tau tsim nws tus kheej los ua qhov tseem ceeb ntawm cov txheej txheem tswj hwm, txuas qhov sib txawv ntawm cov ntawv hlau inert thiab siab -kev ua haujlwm zoo. Los ntawm kev lees paub cov txheej txheej txheej adhesion, nws nteg lub hauv paus rau kev tsim kom muaj kev nyab xeeb, muaj zog dua, thiab ntev dua - roj teeb. Raws li kev lag luam thawb mus rau terafactory scale thiab tom ntej no -tshuaj chemistry, qhov tseeb thiab kev ntseeg siab ntawm kev kho mob corona yuav nyob twj ywm tseem ceeb hauv kev txhawb nqa peb lub neej yav tom ntej.