Cov teeb meem hauv lithium-ion roj teeb txheej yog tsim los ntawm peb qhov tseem ceeb: txheej txheej slurry, txheej qhov rais, thiab txheej txheej ziab kom qhuav.
Nyob rau hauv cov txheej txheem kev npaj slurry, tsis tiav dispersion qhia agglomerated hais; tsis txaus hlau tshem tawm pom qhia cov khib nyiab hlau; thiab tsis tiav lub tshuab nqus tsev deaeration tawm tom qab ntau npuas. Cov txheej txheem sib xws muaj xws li agglomerates, hlau particle paug, pinholes, txiv kab ntxwv tev, thiab lwm yam.
Cov txheej txheem txheej txheem txheej txheem (slurry volumetric txaus tus nqi, txheej ceev, qhov sib txawv, thiab lwm yam) dhau ntawm lub qhov rais txheej tuaj yeem ua rau huab cua nkag, sagging, kab rov tav kab txaij, thiab kab txaij ntsug. Tsis tas li ntawd, lub sijhawm vibrations los ntawm cov twj tso kua mis, txheej yob, thiab lwm yam, tuaj yeem tsim cov kab kab rov tav raws sijhawm.
Thaum lub sij hawm txheej txheej ziab qhuav, qhov kub kom qhuav ntau dhau tuaj yeem ua rau muaj qhov tsis xws luag xws li kev txav chaw, cov npoo tuab, thiab tawg.
Txhawm rau tsim cov txheej txheej ruaj khov thiab tsis sib xws, cov xwm txheej hauv qab no yuav tsum tau ua tiav ib txhij thaum txheej txheej txheej txheej:
① ruaj khov slurry zog, tsis muaj sedimentation, tsis muaj kev hloov hauv viscosity, cov ntsiab lus khoom, thiab lwm yam.
② ruaj khov slurry pub khoom noj khoom haus, tsim kom muaj kev sib txuam thiab ruaj khov ntws hauv lub cev tuag.
③ txheej txheej txheej yog nyob rau hauv lub qhov rais txheej, tsim ib qho chaw ruaj khov ntawm cov tuag thiab txheej yob.
④ Cov ntawv ci ruaj khov, tsis muaj web slippage, kev co hnyav, lossis wrinkles.
Muaj ntau ntau hom txheej zaj duab xis tsis xws luag nrog ntau yam ua rau. Kab lus no tsom mus rau qhov - txheej txheej tuag rau lithium- ion roj teeb, tshuaj xyuas ntau yam tsis xws luag thiab muab cov kev daws teeb meem sib xws. Feem ntau cov tsis xws muaj xws li cov ntsiab lus tsis xws luag, ntug teebmeem, thiab jagged defects.
I. Point Defects
1. Pinholes
Txhais:Ib qho teeb meem uas huab cua khiav tawm hauv cov khoom siv lub qhov hws ua rau lub qhov thaum lub sij hawm txheej txheej ziab. Npuas nyob rau hauv cov yeeb yaj kiab ntub dej txav los ntawm cov txheej txheej sab hauv mus rau qhov chaw ntawm zaj duab xis thiab rupture, tsim pinhole defects. Cov npuas tsuas yog los ntawm nplawm, txheej ua kua thauj, thiab txheej txheej txheej txheej.
Kev Txhim Kho Kev Ntsuas:Siv lub tshuab nqus tsev, xaiv CMC nrog zoo dispersibility thiab ruaj khov, kho cov ntsiab lus ntawm cov khoom, CMC thiab SBR piv, thiab lwm yam., kho stirring ceev thiab sij hawm.
2. Crater (Shrinkage Qhov)
Txhais:Ib qho teeb meem tshwm sim los ntawm qhov tsis tshua muaj qhov nro ntawm qhov chaw substrate.
Ua los ntawm ntau yam hais (plua plav, roj stains, hlau hais, thiab lwm yam). Lub xub ntiag ntawm cov khoom txawv teb chaws tsim cov cheeb tsam uas tsis tshua muaj zog nyob rau hauv cov yeeb yaj kiab ntub dej ntawm cov particle nto. Cov yeeb yaj kiab ua kua migrate radially nyob ib ncig ntawm cov khoom, tsim cov crater -zoo li qhov tsis xws luag, raws li qhia hauv qab no.
Kev Txhim Kho Kev Ntsuas:Lim cov kua txheej rau hlau tshem tawm, tswj cov plua plav ib puag ncig, ntxuav lub substrate nto.
3. Anode txheej npuas
Agglomerate Particle Protrusion:Yog hais tias lub slurry tsis stirred uniformly, thiab tus neeg sawv cev conductive tsis dispersed, tsim agglomerates, hom kev tsis haum no tshwm sim. Raws li qhia hauv qab no, thaj chaw loj ntawm protrusions tshwm rau ntawm electrode nto. Kev soj ntsuam cov cheeb tsam no nyob rau hauv kev nthuav dav qhia tias cov no yog cov agglomerates ntawm tus neeg sawv cev conductive.
Kev Txhim Kho Kev Ntsuas:Txhim kho cov txheej txheem slurry stirring kom tshem tawm lawv.
4. Txiv kab ntxwv Peel
Txhais:Qhov zoo li qhov tsis xws luag nyob qhov twg cov txheej zoo li qhov kev ntxhib los mos ntawm cov txiv kab ntxwv tev.
Ua rau:Thaum lub sij hawm txheej txheej, vim cov kuab tshuaj evaporation, qhov kub thiab txias sib txawv tshwm sim hauv ntau qhov chaw, tsim kom muaj qhov sib txawv ntawm cov txheej txheem sab sauv thiab qis ntawm cov slurry. Qhov no ua rau saum npoo nro gradient thiab ntuj convection phenomenon, ua rau cov txheej txheem mus rau migrate, thaum kawg ua rau ib tug uneven txheej nto thiab txiv kab ntxwv tev tsis xws luag. Kev ziab sai heev nyob rau hauv qhov cub lossis cua kub tshaj tawm tuaj yeem ua rau kev daws teeb meem ua ntej ua ntej theem, kuj tsim cov txiv kab ntxwv tev tsis xws luag.
Kev Txhim Kho Kev Ntsuas:
Txo qhov ziab kom qhuav, tso cai rau lub sijhawm kom txaus rau theem.
Ntxiv qis -volatility solvents, surfactants, thiab lwm yam., rau kev daws kom txo qhov kub thiab txias qhov sib txawv.
II. Kab mob
1. Kos
Txhais:Cov txheej txheej yog khawb rau hauv cov kab tawm ntawm qhov sib txawv ntawm qhov ntev thiab qhov tsis sib xws vim kev sib cuag nrog cov khoom ntse, raws li qhia hauv qab no.
Tej Yam Ua Tau:Loj particle agglomerates, cov khoom txawv teb chaws, los yog cov khoom loj daig hauv qhov sib txawv ntawm qhov sib txawv los yog txheej txheej; tsis zoo substrate tsis zoo ua rau cov khoom txawv teb chaws los thaiv qhov sib txawv ntawm txheej txheej ntawm cov txheej yob thiab cov yob rov qab; kev puas tsuaj rau daim di ncauj tuag. Tsis tas li ntawd, thaum lub sijhawm ua haujlwm ntawm cov cuab yeej siv, qhov tsis sib xws los yog qhov tsis zoo ntawm qhov cub cua ntim tuaj yeem ua rau lub tshuab electrode khawb thaum mus ncig, kuj ua rau khawb kab tsis xws luag.
Kev Txhim Kho Kev Ntsuas:Tshem cov khoom ntawm daim di ncauj los yog txheej txheej, hloov cov lim dej, tshuaj xyuas daim di ncauj. Rau cov teeb meem tshwm sim los ntawm scraping, nres txoj kab los daws qhov teeb meem, nrhiav qhov chaw scraping, tshem tawm cov teeb meem, los yog kho qhov cub cua ntim kom tsim nyog los daws cov kab kos tsis zoo thaum ua kom cov electrode dryness.
Cov khoom loj hauv slurry:Kho CMC, nce stirring lub sij hawm. Siv cov CMC zoo sib xws, tsawg fiber ntau residue, thiab gelation, zoo hydration nyhuv, muaj peev xwm disperse cov khoom hais; nce stirring lub sij hawm, huv si residual mos hais los ntawm cov ntxaij vab tshaus, tshuaj ntsuam cov slurry.
2. Vertical Streaks
Txhais:Striped tsis xws luag tshwm sim nyob rau hauv lub txheej, thaum uas tig mus rau lub khiav kev taw qhia ntawm lub substrate, tsis tu ncua ncua nyob rau hauv ntev kev taw qhia, raws li qhia hauv qab no.
Tej Yam Ua Tau:Feem ntau tshwm sim nyob ze ntawm lub siab ceev txwv ntawm lub qhov rais txheej, pom tseeb dua nrog nyias txheej. Tsis sib npaug ntawm slurry ntawm cov ntawv ci.
Kev Txhim Kho Kev Ntsuas:Kho slurry viscosity (ntau tshaj dispersant ntxiv rau cov dispersion tsis zoo yuav ua rau viscosity siab dhau lawm; tsis yog-Newtonian kua cwj pwm ua rau tsis zoo leveling tom qab cov slurry yog pauv los ntawm lub coater mus rau cov ntawv ci nto, tsis txhob kis tusyees.); txo txheej ceev (txo kev ceev tso cai rau lub slurry poob "elasticity" thiab theem tam sim ntawd); txo qhov sib txawv ntawm txheej txheej ntawm txheej yob thiab rov qab yob; siv zoo- dispersing dispersants nrog ntau npaum li cas.
3. Kab rov tav Streaks
Txhais:Striped defects tshwm nyob rau hauv lub txheej, perpendicular mus rau lub khiav kev taw qhia ntawm lub substrate, traversing lub web dav.
Tej Yam Ua Tau:Mechanical vibration; web ceev hloov pauv; periodic fluctuations nyob rau hauv cov dej ntws ntawm slurry mov.
Kev Txhim Kho Kev Ntsuas:Paub meej yog tias qhov kev cuam tshuam ntawm cov tshuab ua haujlwm sib xws nrog cov kab rov tav streak tshwm sim zaus.
4. Wavy Ntug
Txhais:Ib qho tsis xws luag yog cov kab txaij wavy tshwm ntawm ntug txheej.
Ob qho laj thawj tseem ceeb ua rau muaj qhov tsis xws luag: ib qho cuam tshuam nrog cov ntawv ci, piv txwv li, tsis tuaj yeem lees txais cov ntawv ci nto roughness, ntawv ci oxidation, lwm yam kab mob thaum lub sij hawm thauj los yog unwinding tuaj yeem ua rau muaj teeb meem wavy ntug. Rau cov teeb meem zoo li no, hloov nrog cov ntawv ci tshiab rau txheej. Lwm qhov laj thawj yog qhov tsis sib haum xeeb ntawm slurry viscosity thiab shim extension. Thaum lub sij hawm txheej, cov khoom siv lub tank ntev stirring yuav ua rau viscosity txo, los yog tsis zoo wettability ntawm cov conductive tus neeg saib xyuas thaum stirring heev cuam tshuam slurry viscosity. Kev hloov pauv viscosity (txo qis) txhais tau hais tias tam sim no shim txuas ntxiv tsis haum; hloov nrog ib tug loj extension shim los daws wavy ntug tshwm sim los ntawm viscosity txo.
5. Kev tawg
Txhais:Ib qho tsis xws luag uas interlaced tawg tshwm rau ntawm txheej txheej.
Ua rau:Ntau dhau los yog qhuav sai heev. Vim qhov cua sov tsis sib xws ntawm qhov sib txawv ntawm cov electrode thaum lub sij hawm nres, qee cov npoo qhuav sai heev, lwm qhov qeeb qeeb thaum ziab. Yog tias qhov kev ntxhov siab sab hauv tsim nyob rau hauv cov txheej txheem tsis tso tawm tag nrho, nws yuav tawg.
Kev Txhim Kho Kev Ntsuas:Kho lub sij hawm kom qhuav thiab ceev; kho cov ntsiab lus (cov ntsiab lus tsis tshua muaj peev xwm ua rau cov txheej txheem kom qhuav sai thiab dhau heev, ua rau curling thiab tawg); vim yog txheej txheej txheej nro, tswj kev tawg los ntawm kev kho qhov cub cua kom tsawg.
III. Ntug teebmeem
1. Thick Edge (Edge Buildup)
Txhais:Ib qho tsis xws luag nyob qhov twg txheej thickness ntawm ob npoo ntawm coated dav yog siab tshaj qhov nruab nrab thickness. Feem ntau, cov npoo yog tuab thiab qhov nruab nrab yog nyias, piv txwv li, tuab ntug.
Ua rau:Mass migration uas tau tsav los ntawm qhov nro. Raws li qhia hauv qab no, thaum xub thawj, ntug ntawm cov yeeb yaj kiab ntub dej yog thinner, hnyav evaporates sai dua nyob rau hauv qhov chaw, ua rau cov ntsiab lus ntawm cov khoom ntawm ntug nce sai heev. Qhov nro ntawm ntug yuav ntau dua li ntawm qhov nruab nrab ntub zaj duab xis. Qhov loj dua qhov nro ntawm ntug thiab cov kuab tshuaj evaporation sai dua tsav cov kua los ntawm sab hauv mus rau ntawm ntug, tsim cov ntug tuab tom qab ziab.
Qhov tshwm sim ntawm ntug tuab yog qhov tsis zoo. Cov kev ntsuas los tiv thaiv thiab txo nws muaj xws li:
① Nrog rau qhov slurry ntws tsis tu ncua, txo qhov luaj li cas nce lub slurry tawm tshaj tawm ntawm qhov tuag, yog li txo cov quab yuam ntawm slurry, yog li txo qhov tuab ntawm cov ntug tuab. Txawm li cas los xij, qhov me me me ua rau muaj siab dua nyob rau hauv qhov tuag, yooj yim dua ua rau tuag di ncauj swell, ua rau tsis sib xws txheej transverse thickness uniformity, yuav tsum tau ntau dua precision txheej txheej.
② Txo qhov sib txawv ntawm txheej txheej tuaj yeem txo qhov tuab thiab dav ntawm ntug tuab.
③ Txo qhov nro ntawm cov slurry, piv txwv li, los ntawm kev ntxiv surfactants, kom inhibit slurry ntws ntawm ntug thaum ziab.
④ Ua kom zoo dua qhov tawm ntawm lub qhov shim kom hloov qhov ntws nrawm thiab qhov loj ntawm cov slurry, txo qhov kev ntxhov siab ntawm ntug slurry, thiab tsis muaj zog ntawm ntug o ntawm cov slurry.
[Internal txuas tswv yim: Txuas "cov khoom siv txheej txheej siab dua" rau peb nplooj ntawv khoom rau cov coaters precision, thiab "slurry zog" rau peb cov khoom siv lossis cov nplooj ntawv kev txhawb nqa]
2. Ntug kev nyuaj siab
Txhais:Zoo ib yam li ntug kev nyuaj siab hom kab tsis xws luag.
Ua rau:Ib qho tseem ceeb ua rau ntug kev nyuaj siab kab tsis xws luag yog hais txog txheej txheej siab. Thaum cov txheej txheem siab nyob rau hauv qhov tuag kab noj hniav yog tsawg, ntug kev nyuaj siab tshwm sim ntawm ntug txoj hauj lwm ntawm electrode txheej.
Kev Txhim Kho Kev Ntsuas:Ib txoj hauv kev yog ntxiv Teflon rau ob sab ntawm cov kab noj hniav kom nce cov txheej txheej siab, txhim kho ntug txheej nyiaj, thiab daws kev nyuaj siab ntawm ntug. Lwm qhov yog kom txo qis shim thickness, kuj yuav ua rau kom kab noj hniav txheej siab thiab tsis txhob ntug kev nyuaj siab.
3. Wrinkling
Txhais:Ib qho tsis xws luag uas wrinkles tshwm rau ntawm txheej thaum lub sij hawm ziab.
Cov yam tseem ceeb muaj xws li: unwinding/rewinding nro, yob ratios, tooj liab ntawv specifications (ntau tshaj nyob rau hauv dav, nyias hom), rewind ncej kab, PET zaj duab xis winding ceev, thiab lwm yam.
Txhim kho Countermeasures:Txhim kho qhov nro nkhaus, hloov qhov sib piv ntawm cov yob, kho cov kev tswj cov yob, thiab ua kom lub zog ceev ntawm PET zaj duab xis hla yob.
4. Ntug tsis muaj zog / Fuzzy Ntug
Txhais:Cov xim sib txawv ntawm cov khoom siv coated thiab cov khoom siv ntug yog me me, tsis muaj ciam teb meej; Kev tshawb pom ntug tsis raug vim yog ntug tsis muaj zog tuaj yeem ua rau qhov ntsuas qhov deb tsis raug, tom qab ntawd cuam tshuam rau kev ua raws li -txoj kev sib txawv ntawm kev kho qhov txuas.
Ua rau:Cov khoom swaying sab laug thiab sab xis; cov ntaub ntawv sib txawv / slurries muaj qhov sib txawv grayscale; cuam tshuam los ntawm cov tsos mob ntawm cov ntug txheej, thiab lwm yam.
Kev Txhim Kho Kev Ntsuas:Optimize lub imaging system thiab ntug nrhiav algorithm.
Lwm yam txheej txheej tsis xws luag muaj xws li: Cua nkag, transverse nthwv dej, sagging, Rivulet, expansion, ponding, thiab lwm yam.
Lub complexity ntawm txheej tsis xws luag
Txheej tsis xws luag, los ntawm lawv ua rau tshem tawm txoj kev thiab txawm tswj txoj kev, yog heev complex.
Ua ntej, yam uas ua rau muaj qhov tsis xws luag yog complex. Txhua chav ua haujlwm lossis cov txheej txheem txheej txheem txheej txheem txheej txheem tuaj yeem cuam tshuam rau txheej txheej zoo, ua rau muaj qhov tsis zoo ntawm cov khoom kawg. Dhau li ntawm qhov cuam tshuam ncaj qha ntawm qhov tsis xws luag- ua rau muaj qhov tshwm sim, kev sib cuam tshuam ntawm ntau yam kuj tseem tuaj yeem ua rau muaj qhov tsis xws luag.
Qhov thib ob, pinpointing lub hauv paus ntawm qhov tsis xws luag yog complex. Cov kev tsis zoo yuav tshwm sim hauv tib cov txheej txheem los yog tsuas yog tom qab ob peb txoj haujlwm. Qee lub sij hawm txheej txheej streaks pom ntawm qhov chaw nres tsheb txheej, tab sis cov khoom sib xyaw lossis cov kab mob sib kis tsuas yog pom tom qab ziab tas. Txawm tias qhov tsis xws luag hauv substrate yuav tsis raug kuaj kom txog thaum cov khoom kawg rov qab los yog tom qab slitting.
Thirdly, qhov tshwm sim ntawm qhov tsis xws luag yog random. Cov teeb meem tuaj yeem tshwm sim ntawm txhua theem ntawm kev tsim khoom lag luam, los ntawm lab-kev npaj slurry, mus rau txheej txheej txheej, kom ua kom tiav- nce ntau lawm. Txhua theem yuav muaj qhov tsis xws luag, thiab kev tshem tawm hauv thawj theem tsis tuaj yeem lav qhov tsis xws - theem tom ntej pub dawb. Ntau qhov nyuaj, cov tsos mob zoo sib xws tuaj yeem muaj ntau yam ua rau, thiab qhov ua rau yuav txawv txhua lub sijhawm, xws li nrog npuas, pob, lossis ripples.
Thaum kawg, qhov tsis xws luag kuj tuaj yeem txiav txim siab los ntawm qhov pib tsim ntawm lub coater thiab kev ua haujlwm ntawm txhua chav kho vajtse ntawm cov kab ntau lawm. Lub coater tej zaum yuav tsim nyog rau cov khoom nws tau pib kho rau, tab sis cov khoom hloov pauv lossis cov nqi sib txawv tuaj yeem ua rau lub coater tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua.
Cov kev tshuaj ntsuam saum toj no qhia txog cov teeb meem nyuaj hauv lithium-ion roj teeb electrode txheej. Kev ua tiav zoo ib yam, siab - cov txiaj ntsig zoo yuav tsum tsis yog tsuas yog kev paub tob tob xwb tab sis kuj yog cov cuab yeej siv tau zoo, cov ntaub ntawv ruaj khov, thiab cov kab ntau lawm sib txuas.
NtawmTOB NEW ENERGY, peb yog koj tus khub mob siab rau kev kov yeej cov kev cov nyom no. Peb muab qhov kawg-rau- xaus cov kev daws teeb meem uas txuas qhov sib txawv ntawm R&D thiab ntau lawm, kom ntseeg tau tias koj cov txheej txheem raug kho kom zoo, ua haujlwm zoo, thiab tawm los.
Peb Cov Kev Pabcuam Core:
TurnkeyBattery Production Line Solutions:Los ntawm kev tsim thiab kev tsim kho lub Hoobkas mus rau kev xaiv cov cuab yeej siv, kev teeb tsa, kev ua haujlwm, thiab kev cob qhia cov neeg ua haujlwm, peb xa ua tiav, npaj tau- rau- ua haujlwm cov kab ntau lawm raws li koj cov peev nyiaj thiab cov hom phiaj tsim tawm.
Pilot Line & Lab Line Solutions:Ua kom koj R&D thiab ntsuas ntau dua - nrog rau peb cov kev tsim kho thiab cov kab kev sim, tsim los muab cov ntaub ntawv raug thiab ntsuas tau rau ntau lawm.
Txiav -Edge Battery Technology Support:Leverage peb hauv- pab pawg kws tshaj lij hauv tsev rau kev taw qhia txog kev siv thev naus laus zis suav nrog cov khoom siv- lub xeev cov roj teeb, sodium- roj teeb ion, lithium- roj teeb sulfur, thiab cov txheej txheem qhuav electrode. Peb muab kev txhawb nqa dav dav los txhim kho kev ua haujlwm ntawm tes hauv lub peev xwm, tus nqi peev xwm, kev caij tsheb kauj vab, thiab kev nyab xeeb.
Customized Khoom siv rau txhua theem:Peb muab cov kws txiav plaub hau- ua coater thiab lwm yam khoom siv tseem ceeb rau kev sim, kev tsav dav hlau, thiab cov theem tsim khoom loj, txhua yam ua tau raws li koj cov kev xav tau tshwj xeeb.
Kev davCov khoom siv roj teebKhoom siv:Nkag mus rau ntau yam ntawm - zoo, cov khoom siv roj teeb ciam teb los txhawb koj cov kev tshawb fawb thiab kev tsim khoom.
Wb tsim lub zog yav tom ntej, ua ke.
Mus saib peb lub vev xaib kom tshawb xyuas seb peb li casBattery Production Line SolutionsthiabKev Pabcuam Cov Khoom Sivtuaj yeem txhawb koj txoj kev vam meej. Rau kev sib koom tes, thovTiv tauj pebhnub no.
