Qhov sib txawv ntawm ib leeg thiab ntau dov ntawm lithium-ion roj teebHluav taws xob
Hauv kev tsim cov txheej txheem ntawm cov roj teeb lithium-ion, cov txheej txheem dov ntawm electrode yog ib qho ntawm cov kauj ruam tseem ceeb, uas muaj kev cuam tshuam ncaj qha rau kev ua haujlwm thiab lub neej ntawm lub roj teeb. Kab lus no yuav tsom mus rau qhov sib txawv ntawm ib leeg thiab ntau dov ntawm lithium-ion roj teeb electrode thiab lawv qhov cuam tshuam rau kev ua haujlwm ntawm roj teeb.
1. Txheej txheem cej luam ntawm dov ntawm lithium-ion roj teeb ehluav taws xob
Lub dov ntawm electrode yog qhov txuas tseem ceeb hauv kev tsim cov roj teeb lithium-ion. Nws lub hom phiaj tseem ceeb yog tswj lub thickness thiab porosity ntawm lub electrode nyob rau hauv lub tsim ntau yam, txhim kho lub tev lub zog ntawm lub electrode, thiab txo qhov kev ncua deb ntawm lithium ions.
Lub hom phiaj ntawm rolling yog raws li nram no:
1. Xyuas kom meej tias qhov saum npoo ntawm cov electrode yog du thiab tiaj tus los tiv thaiv cov burrs ntawm txheej txheej los ntawm kev tho lub diaphragm thiab ua rau luv luv;
2. Compact cov khoom siv electrode txheej kom txo qhov ntim ntawm cov electrode kom lub zog ceev ntawm lub roj teeb;
3. Ua kom cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob sib txuas nrog ntau dua thiab txhim kho cov hluav taws xob conductivity;
4. Txhim kho lub zog sib txuas ntawm cov khoom siv txheej thiab cov khoom siv tam sim no, txo qhov tshwm sim ntawm cov hmoov poob ntawm lub roj teeb electrode thaum lub voj voog, thiab txhim kho lub voj voog lub neej thiab kev nyab xeeb ntawm lub roj teeb.
Roj teeb dov xovxwm tshuab, tseem hu ua lithium roj teeb rau cov menyuam xovxwm tshuab, yog ib qho ntawm cov khoom siv tseem ceeb rau kev tsim cov roj teeb lithium. Nyob rau hauv cov txheej txheem ntau lawm, lithium roj teeb electrode feem ntau dov thiab compacted los ntawm cov menyuam presses, thiaj li hais tias cov electrode tuaj yeem hloov tau zoo dua rau cov txheej txheem ntawm lub roj teeb them thiab tawm, yog li txhim kho lub roj teeb lub zog ceev thiab ruaj khov.
2. Qhov sib txawv ntawm ib leeg dov thiab ntau dov
Ib leeg dov txhais tau hais tias tsuas yog ib qho txheej txheem dov ua tiav kom ua tiav cov qauv electrode tuab thiab ntom. Txoj kev kho no yog qhov yooj yim thiab ua tau zoo, tab sis thaum lub sijhawm kho, nws yooj yim ua rau cov khoom siv ua kom tawg thiab pulverize, thiab ua rau cov pore loj tsis sib xws, uas yog, qhov pore loj saum cov electrode (tawm ntawm cov ntawv ci tooj liab) yog loj dua qhov pore loj hauv qab ntawm electrode (ze rau ntawm daim ntawv tooj liab).
Nyob rau hauv sib piv, ntau dov yog thawj yob lub electrode rau ib tug tej thickness, thiab ces ua tiav cov tsim thickness thiab ceev los ntawm ntau dov. Txoj kev kho no tuaj yeem txo qhov teeb meem ntawm kev tawg thiab pulverization ntawm cov khoom nquag, thiab tuaj yeem ua rau cov pore loj faib hauv cov electrode ntau dua.
3. Kev cuam tshuam ntawm ib leeg thiab ntau qhov dov ntawm kev ua haujlwm ntawm lithium-ion roj teeb
1. Kev ncaj ncees ntawm cov khoom nquag:Cov khoom siv hluav taws xob yog lub zog tseem ceeb khaws cia hauv cov roj teeb lithium-ion, thiab lawv txoj kev ncaj ncees ncaj qha cuam tshuam nrog lub zog ceev thiab ruaj khov ntawm lub roj teeb. Ib qho dov tuaj yeem yooj yim ua rau kev tawg thiab pulverization ntawm cov khoom nquag, uas yuav tsis tsuas yog txo lub zog ceev ntawm lub roj teeb, tab sis kuj cuam tshuam rau lub neej thiab kev nyab xeeb ntawm lub roj teeb. Ntau qhov dov tuaj yeem tiv thaiv kev ncaj ncees ntawm cov khoom nquag, yog li txhim kho kev ua haujlwm ntawm lub roj teeb.
2. Electrolyte wettability: Electrolyte wettability yog ib qho tseem ceeb cuam tshuam rau lithium ion kis tau tus mob. Tom qab ib zaug dov, lub electrolyte wettability yuav raug cuam tshuam los ntawm rupture ntawm active hais thiab tsis sib xws pore loj tis. Ntau qhov dov tuaj yeem ua rau qhov pore loj faib hauv cov khoom siv hluav taws xob ntau dua, yog li txhim kho cov khoom siv electrolyte, txo cov lithium ion kis tau tus mob, thiab txhim kho lub roj teeb thiab kev ua haujlwm tawm.
3. Kev tiv thaiv: Resistance yog ib qho tseem ceeb parameter rau kev ntsuas lub internal kuj ntawm lub roj teeb. Kev ua haujlwm siab dhau lawm yuav txo tau lub roj teeb nqi thiab kev ua haujlwm tawm. Ib leeg dov tuaj yeem ua rau qhov pore loj saum toj thiab hauv qab ntawm electrode tsis sib xws, yog li cuam tshuam rau qhov tsis kam. Ntau qhov dov tuaj yeem txhim kho qhov teeb meem no, ua kom qhov pore loj faib ntau yam sib xws, txo tus nqi tiv thaiv, thiab yog li txhim kho lub roj teeb lub nqi thiab kev ua haujlwm tawm.
4. Roj teeb lub neej voj voog:Lub neej voj voog yog ib qho tseem ceeb ntsuas ntsuas kev ntsuas roj teeb. Thaum lub sij hawm ib tug dov txheej txheem, lub rupture thiab pulverization ntawm active hais tej zaum yuav ua rau ib tug txo nyob rau hauv lub roj teeb voj voog lub neej. Ntau qhov dov tuaj yeem tiv thaiv kev ncaj ncees ntawm cov khoom nquag, yog li txhim kho lub roj teeb lub voj voog lub neej.
Hauv cov ntsiab lus, ntau qhov kev kho dov ntawm lithium-ion roj teeb electrode muaj qhov zoo dua ntawm ib qho dov. Ntau qhov kev kho dov tuaj yeem tsis tsuas yog ua tau zoo kom tsis txhob muaj kev sib tsoo thiab pulverization ntawm cov khoom siv hluav taws xob, tab sis kuj ua rau cov khoom siv hluav taws xob hauv cov khoom siv hluav taws xob zoo dua qub, txhim kho qhov ntub dej ntawm cov electrolyte thiab txo cov nqi tiv thaiv. Cov txiaj ntsig zoo no pab txhim kho kev ua tau zoo, them nqi thiab tawm kev ua haujlwm thiab lub neej voj voog ntawm lithium-ion roj teeb. Yog li ntawd, nyob rau hauv lub neej yav tom ntej lithium-ion roj teeb txheej txheem tsim, yuav tsum tau them sai sai rau thiab siv ntau yam dov kho tshuab yuav tsum tau saws los txhim kho cov khoom zoo thiab kev sib tw. Nyob rau tib lub sijhawm, nrog kev nce qib thiab kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis, nws ntseeg tias ntau cov thev naus laus zis tshiab thiab cov txheej txheem yuav raug siv rau hauv kev tsim cov roj teeb lithium-ion yav tom ntej, txhawb kev txhim kho ntxiv ntawm kev ua haujlwm thiab kev nyab xeeb. ntawm lithium-ion roj teeb.
Acey muab ntau yam ntawm cov menyuam xovxwm tshuab, xws li phau ntawv ntsug rau cov menyuam presses, hluav taws xob cov menyuam xovxwm, thiab lwm yam. Tsis tas li ntawd, Peb tau cog lus los muab cov roj teeb muaj peev xwm ntsuas tshuab, roj teeb insalution ntawv sticking tshuab, roj teeb sorting tshuab, BMS tester,roj teeb chaw vuam tshuab, roj teeb kev ntsuas ntsuas, roj teeb pob them nqi thiab tso tawm kev laus tester, thiab lwm yam thiab peb muab ib qho kev daws teeb meem rau cylindrical roj teeb pob los ua ke kab, thiab tseem muaj cov kev pabcuam zoo tom qab muag kom tau raws li koj xav tau.
