Aluminium ntawv ci yog ib qho siv ntau tshaj plaws hauv cov khoom siv hauv cov roj teeb hluav taws xob tshiab, thiab yog vim li cas yog lub cev tsis yog kev lag luam. Aluminium muaj qhov ntom ntawm li 2.7 g / cm³, kwv yees li ib feem peb ntawm tooj liab, thaum nws cov hluav taws xob conductivity ncav cuag li 60% ntawm tus qauv thoob ntiaj teb annealed tooj liab. Nyob rau hauv tas li ntawd, ib tug nyias tej yam ntuj tso oxide zaj duab xis tsim instantly nyob rau saum npoo thiab nyob ruaj khov tiv thaiv feem ntau cov organic electrolytes nyob rau hauv lub qhov rais ua hauj lwm tej zaum yuav ntawm ib tug cathode. Cov khoom peb, tsis tshua muaj huab hwm coj, siab conductivity thiab electrochemical stability, yog raws nraim li qhov tam sim no collector xav tau.
Qhov twg Aluminium Foil zaum hauv lub zog tshiab
Lub roj teeb lub zog tshiab tau sib sau los ntawm plaub qhov chaw ua haujlwm yooj yim. Qhov zoo electrode khw muag khoom them nqi, qhov tsis zoo electrode tso tawm nqi, cov electrolyte thauj ions ntawm ob, thiab cov separator khaws cov electrodes lub cev sib nrug. Nyob ib ncig ntawm cov tub ntxhais no zaum lub tsev, cov terminals thiab lub roj teeb tswj system. Cov ntawv txhuas txhuas yog cov khoom siv hluav taws xob zoo: cov hmoov ua haujlwm (cov khoom siv ternary, lithium hlau phosphate lossis sodium hloov hlau oxide) yog coated rau ob lub ntsej muag ntawm cov ntawv ci, qhuav thiab calendered, thiab cov ntawv ci ces sau cov electrons generated thaum tawm thiab xa mus rau lub tab.
Vim tias cov ntawv ci zaum tom qab cov khoom siv es tsis yog nyob rau hauv pem hauv ntej ntawm nws, nws tsis muaj peev xwm ntawm nws tus kheej, tab sis nws txiav txim siab npaum li cas tam sim no yog kos los ntawm txheej. Uniform thickness, tsis tshua muaj deg tsis kam thiab ib tug huv si, wettable nto yog li ntawd yuav tsum tau ua hauj lwm, tsis yog kev lag luam thov.
Foil Consumption los ntawm Cell Chemistry
Tus nqi ntawm cov ntawv ci ib lub roj teeb siv tau yog tsav los ntawm chemistry, cell formats thiab lub zog ceev. Kev lag luam suav xyaum siv tus lej ib gigawatt teev:
| Cell chemistry | Aluminium ntawv nyiaj rau GWh | Foil nqi faib ntawm cell |
|---|---|---|
| Ternary (NCM / NCA) | 300 - 450 t | txog 1.5% - 2.0% |
| Lithium hlau phosphate (LFP) | 400 - 600 t | me ntsis saum ternary |
| Sodium -Ion | 700 - 1,000 t | txog 5.0% |
LFP hlwb xav tau cov ntawv ci ntau dua li cov hlwb ternary vim tias lawv lub zog muaj zog tsawg dua, yog li thaj chaw electrode loj yuav tsum tau coated rau tib lub zog khaws cia, thiab txhua square meter ntawm electrode nqa cov ntawv ci ntawm cov khoom siv tam sim no. Sodium- ion hlwb rub cov duab kom nrawm rau qhov sib txawv: sodium tsis hnov mob nrog txhuas ntawm qhov tsis zoo electrode, yog li txhuas tuaj yeem ua tus sau ntawm ob sab zoo thiab qhov tsis zoo es tsis txhob tooj liab. Qhov ntawd ua rau ob npaug ntawm cov ntawv xov tooj ntawm tes thiab txhawb nqa nws cov nqi ntawm tes mus rau kwv yees li 5.0%.
Thickness thiab Alloy xaiv
Gauge yog xaiv los ntawm lub zog yuav tsum tau thiab los ntawm txheej txheej cov neeg siv khoom khiav. Thinner foil txo qis cell loj thiab nqi, tab sis nws kuj nce hluav taws xob tiv thaiv thiab ua rau lub vev xaib nyuaj rau lub tsho tiv no yam tsis muaj wrinkling.
Cov neeg siv khoom thiab 3C hlwb:Feem ntau 9 µm rau 11 µm.
Lub zog thiab lub zog cia cell:Feem ntau 12 µm rau 15 µm.
Tshwj xeeb tus nqi siab tsim:ib feem me me ntawm kev ua lag luam siv cov ntawv ci siab tshaj 15 µm.
Hom alloys:1060, 1070 thiab 1235 aluminium, nkag rau hauv mos (O) temper nrog dov, roj ntxuav saum npoo.
Cov ntawv ci yog xa hauv daim ntawv coil thiab hla mus rau qhov dav ntawm cov neeg siv khoom txheej kab. Yob txoj kab uas hla, hom tseem ceeb, splice kev ywj pheej thiab ntug zoo yog pom zoo nrog tus tsim ntawm tes vim hais tias ib tug burr los yog ib tug folded ntug tuaj yeem rhuav lub txheej txheej thiab nres ib kab rau ntau teev.
Surface Condition: Wettability, Flatness thiab Pinholes
Electrode slurry yog nkig, hnyav hnyav los yog dej ua kua, thiab nws tsuas yog kis sib npaug ntawm qhov chaw ntub dej kom zoo. Residual dov roj, oxide plua plav los yog adsorbed noo noo tag nrho txo cov wettability thiab tsim liab qab me ntsis, pinholes nyob rau hauv lub txheej thiab uneven adhesion tom qab ziab. Cov neeg muab khoom yog li qib ntawv ci los ntawm kev ntub dej, thiab qib siab tshaj ntawm A + yog qhov kev lees txais ib txwm rau cov ntawv ci roj teeb.
Peb qhov kev txwv ntxiv yog tswj nyob rau hauv parallel. Thickness kam rau ua yuav tsum nruj txaus kom qhov sib txawv ntawm txheej txheej tsis ntws hla ib ob mais coil. Flatness yuav tsum zoo txaus tias lub vev xaib tsis flutter los ntawm qhov cub kom qhuav, uas yuav ua rau ntug ripples thiab txheej kab txaij. Pinhole suav yuav tsum tsawg, vim hais tias ib tug los ntawm pinhole nyob rau hauv lub tam sim no collector tsim ib tug siab tiv thaiv taw tes uas yuav noob cua sov hauv zos thaum them ceev.
Sodium{0}}Ion Cells thiab Hloov mus rau Dual Aluminium Electrodes
Sodium-Ion chemistry feem ntau yog muab tso rau hauv qhov chaw ruaj khov, qhov twg tus nqi ib kilowatt teev thiab lub neej voj voog muaj teeb meem ntau dua li gravimetric zog ceev. Vim hais tias ob qho tib si electrodes tuaj yeem yog txhuas, lub xov tooj ntawm tes tsis xav tau cov khoom siv tooj liab anode ntxiv lawm. Qhov ntawd tshem tawm tooj liab los ntawm daim nqi ntawm cov ntaub ntawv nkaus xwb thiab tshem tawm cov khoom txaus ntshai uas txuas nrog rau nws, thaum lees txais lub xov tooj hnyav dua. Rau ib qho chaw cia khoom qhov hnyav ntxiv yog tsis cuam tshuam, thiab qhov yooj yim ib qho hlau sau cov qauv tsim kuj txo cov khoom siv rov ua dua tshiab, txij li lub pob tsis muaj cov tooj liab sib xyaw thiab txhuas cov kwj deg.
Specification ntawm ntawv ci.Ib tug ua tiav specification yuav tsum kho cov alloy thiab temper, lub nominal thickness thiab kam rau ua, lub coil dav thiab puab txoj kab uas hla, mechanical zog tom qab xa khoom, qib wettability, qhov siab tshaj plaws pinhole suav, qhov chaw huv si txwv, thiab cov ntim yuav tsum tau kom lub coil qhuav thiab tsis puas nyob rau hauv kev thauj mus los. Qhov twg cov cuab yeej cuab tam raug hu tawm, lub zog tensile thiab elongation qhov tseem ceeb yuav tsum tau teev nyob rau ntawm lub siab xav tau, vim tias cov khoom ntsuas ntawm cov qauv ntsuas ntawm qhov sib txawv tsis tuaj yeem muab piv rau. Cov neeg yuav khoom yuav tsum tau pom zoo rau cov qauv kev npaj thiab ntawm txoj kev sim siv rau txhua qhov ntsuas ua ntej thawj coil ships, vim tias cov dej ntub dej thiab cov txiaj ntsig pinhole yog txoj kev nyob ntawm.
FAQ
Q: Dab tsi thickness ntawm aluminium ntawv ci siv nyob rau hauv lithium-ion roj teeb?
Cov neeg siv khoom thiab 3C hlwb feem ntau siv 9 µm mus rau 11 µm ntawv ci, thaum lub zog thiab lub zog cia hlwb feem ntau siv 12 µm txog 15 µm. Tsuas yog ib qho me me ntawm cov qauv tsim tshwj xeeb tshaj 15 µm.
Q: Vim li cas lub roj teeb sodium -ion siv ntau dua aluminium ntawv ci?
Sodium tsis hnov mob nrog txhuas ntawm lub peev xwm anode, yog li txhuas tuaj yeem siv los ua cov khoom siv rau ob qho tib si electrodes. Kev noj haus nce mus txog li 700 - 1,000 t ib GWh es tsis yog 300 - 450 t rau ib lub cell ternary.
Q: Dab tsi yog aluminium alloys siv rau cov roj teeb tam sim no?
1060, 1070 thiab 1235 yog cov qib sib txawv, feem ntau muab hauv cov mos O temper nrog cov roj ntxuav saum npoo. Alloy xaiv yog tsav los ntawm conductivity, formability thiab qhov dav ntawm lub coil lub cell kab yuav tsum tau.
Q: Dab tsi ntawm cov nqi ntawm tes puas yog aluminium foil sawv cev?
Hauv lithium- ion hlwb cov ntawv nyiaj rau kwv yees li 1.5% txog 2.0% ntawm tus nqi. Hauv sodium- ion hlwb, qhov twg ob qho tib si electrodes siv aluminium, qhov sib koom nce mus txog 5.0%.
Q: Puas yog lub roj teeb foil xav tau txheej txheej los yog kev kho mob?
Tsis muaj txheej yog siv rau hauv ib txwm tsim. Qhov yuav tsum tau ua kom huv si, tsis muaj roj tsis muaj dej nrog qib wettability ntawm A + yog li cov electrode slurry wets tusyees, ntxiv rau cov tuab tuab tuab, zoo flatness thiab tsawg pinhole suav.
Q: Yuav ua li cas siv cov ntawv ci suav rau cov roj teeb tshiab?
Cov phiaj xwm muab cov phiaj xwm txhua xyoo hauv GWh los ntawm kev siv ib gigawatt teev ntawm kev xaiv chemistry, tom qab ntawd ntxiv cov nyiaj seem rau txheej thiab slitting poob. Qhov ntawd muab lub xyoo tonnage yuav tsum tau cog lus.
