Cov roj teeb lithium yog cov roj teeb zoo tshaj plaws niaj hnub no, nrog lub zog siab ceev, lub neej ntev, tsis tshua muaj tus kheej tawm, kev tiv thaiv ib puag ncig thiab lwm yam zoo.Lawv tau siv dav hauv cov xov tooj ntse, laptops thiab lwm yam khoom siv hluav taws xob, nrog rau lub zog tshiab tsheb thiab cua zog, hnub ci zog thiab lwm yam khoom siv hluav taws xob loj.Nrog lub ntiaj teb cov hom phiaj txo cov pa roj carbon monoxide, kev hloov pauv hluav taws xob thiab cov cai tswj hwm kev lag luam, lithium roj teeb kev lag luam xav tau nthuav tawm kev loj hlob tawg.Nws cia siab tias los ntawm 2025, lub ntiaj teb lithium roj teeb lag luam loj yuav ncav cuag 1.1 trillion US las.
Kev ua tau zoo thiab kev ua tau zoo ntawm cov roj teeb lithium nyob ntawm tsis yog tsuas yog nyob ntawm kev ua haujlwm thiab kev ruaj ntseg ntawm lithium ions, tab sis kuj nyob ntawm kev xaiv thiab qhov sib piv ntawm cov khoom siv roj teeb.Ntawm lawv, magnesium carbonate yog cov khoom siv roj teeb tseem ceeb, uas feem ntau yog siv los ua cov khoom ua ntej ntawm cov khoom siv hluav taws xob zoo, thiab tseem tuaj yeem siv los txhim kho cov qauv thiab conductivity ntawm cov khoom tsis zoo electrode.Magnesium carbonate plays lub luag haujlwm tseem ceeb hauv cov roj teeb lithium, tab sis yuav ua li cas xaiv magnesium carbonate zoo?Nov yog qee cov lus qhia:
- Xyuas seb cov ntsiab lus tseem ceeb ntawm magnesium carbonate puas ruaj khov.Cov ntsiab lus tseem ceeb ntawm magnesium carbonate yog hais txog cov ntsiab lus ntawm magnesium ions, uas feem ntau tswj ntawm 40-42%.Cov ntsiab lus siab dhau los yog tsawg dhau ntawm magnesium ion yuav cuam tshuam qhov piv thiab kev ua haujlwm ntawm cov khoom siv electrode zoo.Yog li ntawd, thaum xaiv magnesium carbonate, xaiv cov tuam txhab uas muaj cov cuab yeej tsim khoom siab thiab qib thev naus laus zis.Lawv tuaj yeem tswj hwm cov ntsiab lus magnesium ion ntawm magnesium carbonate thiab xyuas kom zoo ntawm cov khoom kom qhuav thiab tshem tawm impurity.
- Tshawb xyuas seb qhov sib nqus impurities ntawm magnesium carbonate yog tswj nyob rau hauv ib qho qis.Sib nqus impurities xa mus rau cov hlau los yog cov khoom sib txuas xws li hlau, cobalt, npib tsib xee, thiab lwm yam, uas yuav cuam tshuam rau kev tsiv teb tsaws ceev thiab kev ua haujlwm ntawm lithium ions ntawm qhov zoo thiab tsis zoo electrodes, txo lub peev xwm thiab lub neej ntawm cov roj teeb.Yog li ntawd, thaum xaiv magnesium carbonate, xaiv cov khoom uas muaj hlau nplaum impurities tsawg dua 500 ppm (ib ntawm ib lab), thiab xyuas lawv los ntawm cov kws tshaj lij kev ntsuas ntsuas.
- Xyuas seb qhov me me ntawm magnesium carbonate puas yog nruab nrab.Qhov loj me me ntawm magnesium carbonate yuav cuam tshuam rau morphology thiab crystallinity ntawm cov khoom siv electrode zoo, thiab tom qab ntawd cuam tshuam rau kev them nqi-kev ua haujlwm thiab lub voj voog ruaj khov ntawm cov roj teeb.Yog li ntawd, thaum xaiv magnesium carbonate, xaiv cov khoom uas muaj me me particle loj span thiab zoo li particle loj nrog rau lwm yam ntaub ntawv.Feem ntau hais lus, qhov loj me D50 (piv txwv li, 50% kev faib tawm qhov loj me) ntawm magnesium carbonate yog li 2 microns, D90 (ie, 90% cumulative tis particle loj) yog li 20 microns.
Nyob rau hauv luv luv, nyob rau hauv cov ntsiab lus ntawm kev nthuav dav ntawm lithium roj teeb kev lag luam, magnesium carbonate raws li cov khoom siv roj teeb tseem ceeb, nws qhov zoo cuam tshuam ncaj qha rau kev ua haujlwm thiab zoo ntawm lithium roj teeb.Yog li ntawd, thaum xaiv magnesium carbonate, peb yuav tsum xaiv cov khoom uas muaj cov ntsiab lus ruaj khov, tsis tshua muaj hlau nplaum impurities thiab nruab nrab particle loj kom ntseeg tau tias kev ua haujlwm tau zoo thiab siv sijhawm ntev ntawm lithium roj teeb.
Post lub sij hawm: Lub Xya hli ntuj-19-2023