Ua ntej, cov lus ntawm lub electrode:
1, qhov muaj pes tsawg leeg zoo nkauj:
a, lithium cobalt oxide: zoo electrode khoom siv, lithium ion source, rau lub roj teeb los txhim kho cov lithium los.
b. Tus neeg sawv cev cwj pwm: txhim kho cov ntaub ntawv zoo ntawm cov ntawv hlau electrode, txhim kho hluav taws xob ntawm cov khoom siv zoo, ua kom lub cev nqus dej ntawm cov ntaub ntawv electrode, ntxiv cov kev sib txuam, thiab txo qhov kev sib txawv.
c. PVDF nplaum: Plaub lithium cobaltate, tus neeg saib xyuas hluav taws xob thiab txhuas ntawv ci los yog txhuas mesh yog sib koom ua ke.
d. Cov hmoov txhuas hniav zoo: Ua los ntawm cov ntawv txhuas los sis cov xim txhuas.
2, muaj pes tsawg leeg ntawm qhov tsis zoo electrode:
a, graphite: tsis pom zoo electrode khoom siv, uas yog cov khoom tseem ceeb ntawm qhov tsis zoo ntawm electrode; feem ntau muab faib ua duab graphite thiab khoom tsim, graphite ob pawg.
b. Tus neeg sawv cev cwj pwm: txhim kho cov ntaub ntawv pov thawj ntawm cov ntawv pov thawj tsis zoo thiab txhawm rau kev siv hluav taws xob ntawm cov khoom siv tsis zoo electrode.
Txhim kho qhov tob tob thiab kev siv. Tiv thaiv cov cim ntawm cov dendrites. Cov kua nqus peev ntawm cov khoom siv hluav taws xob siv tau los ua kom cov kev sib tov ua ke thiab txo cov kev tuaj yeem tawg. (Yuav xaiv raws li graphite particle loj faib rau lossis tsis).
c. Additives: txo cov kev ua tsis tshua mob, txhim kho adhesion, nce slurry viscosity, thiab tiv thaiv slurry nag lossis daus.
d. Dej tuav: Bonding graphite, tus neeg saib xyuas kev ua lag luam, kev siv tshuaj ntxiv thiab cov tooj ci los yog tooj liab mesh ua ke.
e, tsis muaj hmoov txhuas (lead): ua los ntawm cov ntawv ci los sis cov nplais nickel.
Ob, cov khoom xyaw roj teeb lithium Lub hom phiaj: Cov txheej txheem batching ua tau kom tov cov ntau yam hauv cov slurry raws li tus qauv ntsuas, thiab npaj mus rau hauv lub slurry kom pab tib yam xim los xyuas kom meej lub taub hau ntawm lub npoo daim. Cov khoom xyaw feem ntau muaj tsib kev ua xyaw, namely: pretreatment, blending, wetting, dispersion thiab flocculation ntawm cov ntaub ntawv raw.
Thib peb, txoj cai ntawm cov khoom xyaw cov roj ntsha lithium:
(A), lub hauv paus ntsiab lus ntawm kev noj qab haus huv zoo
1. Lub cev nqaij thiab tshuaj ntawm cov ntaub ntawv raw
(1) Lithium cobaltate: non-polar substance, irregular shape, particle diameter D50 feem ntau yog 6-8 μm, dej ntsiab lus ≤ 0.2%, feem ntau yog alkaline, PH muaj txog 10-11.
Lithium manganate: non-polar substance, irregular shape, particle size D50 yog feem ntau 5-7 μm, dej ntsiab lus ≤ 0.2%, feem ntau weakly alkaline, PH nqi yog txog 8.
(2) Tus neeg sawv cev cwj pwm: cov khoom tsis muaj roj, cov txiv hmab txiv ntoo, cov ntsiab lus dej, 3-6%, roj nqus pa ~ 300, qhov loj me me feem ntau yog 2-5μm; feem ntau yog cov pa roj carbon dub, superconducting.
Cov roj carbon, graphite mis nyuj, thiab lwm yam., Feem ntau raug xaiv rau cov xim dub thiab graphite emulsion rau hauv daim ntawv sau ua ntaub ntawv loj; feem ntau medium.
(3) PVDF phau ntawv: cov khoom tsis muaj hnav, chains, molecular nyhav li ntawm 300,000 rau 3,000,000; molecular weight decreases tom qab dej nqus, viscosity yog deteriorated.
(4) NMP: ib qho kua qaub (weakly) ncov qis siv los ua kom yaj / swell PVDF thiab ua rau lub dilute slurry.