Cov khoom siv zoo rau cov roj teeb lithium

Nyob rau hauv cov ntsiab lus ntawm carbon neutrality thiab lub ntiaj teb no qauv ntawm lub tsheb electrification, lithium, raws li ib tug tseem ceeb cov ntaub ntawv nyob rau hauv lub roj teeb teb, yuav tsum tau mus txuas ntxiv tau txais txiaj ntsig los ntawm kev hloov lub zog huv hauv nws lub zog thiab lub zog cia.Lithium muaj cov saw hlau ua tiav, tsim cov khoom lag luam los ntawm cov dej ntws thiab cov pas dej ntsev mus rau nruab nrablithium carbonate, lithium hydroxide thiab hlau lithium, thiab cov kev lag luam hauv qab ib txwm (hlau smelting, lubricants, ceramic iav, thiab lwm yam), cov ntaub ntawv tshiab (organic synthesis, biomedicine) thiab lub zog tshiab (3C roj teeb, roj teeb fais fab, thiab lwm yam) thiab lwm yam. ua tiav industrial chains.Lithium hydroxideyog ib qho ntawm peb qhov yooj yim lithium ntsev hauv lithium kev lag luam saw.Qhov kev thov qis qis feem ntau yog los ntawm cov roj teeb hluav taws xob, cov neeg siv khoom siv roj teeb, thiab cov chaw lag luam sawv cev los ntawm kev tsim cov roj lithium raws li roj thiab iav ceramics.Nws cov ntaub ntawv tseem ceeb muaj xws li anhydrous Lithium hydroxide (LiOH) thiab lithium hydroxide monohydrate (LiOH·H2O).

Lithium hydroxide yog ib qho tseem ceeb raw khoom nyob rau hauv lub teb ntawm lub hwj chim roj teeb, tshwj xeeb tshaj yog cov high-nickel ternary cathode cov khoom siv dav siv nyob rau hauv high-kev ua tau zoo roj teeb, thiab yog ib tug indispensable core lithium qhov chaw nyob rau hauv nws cov khoom.Cov ntaub ntawv siab nickel ternary feem ntau muab faib ua NCM811 thiab NCA.Cov tuam txhab suav feem ntau tsim NCM811, thiab cov tuam txhab Japanese thiab Kauslim feem ntau tsim NCA.Tam sim no, ntau lub zog tshiab tsheb nruab nrog high-nickel ternary roj teeb muaj ntau tshaj 500km.Cov neeg siv roj teeb ntu feem ntau suav nrog smartphones, ntsiav tshuaj, TWS li, thiab drones.

High nickel ternary cov ntaub ntawv xav tau 700 ~ 800 ° C sintering kub, tab sis lithium carbonate feem ntau sintered ntawm txog 900 ° C kom siv cov khoom zoo tagnrho, thaum lub melting point ntawm lithium hydroxide yog 471 ° C, muaj zog reactivity thiab muaj zog corrosiveness.Nws lub cev thiab tshuaj lom neeg cov khoom ua rau lithium hydroxide indispensable rau lub thermal synthesis ntawm high-nickel ternary cathode cov ntaub ntawv, yog li nws yog ib qho kev xaiv inevitable rau high-nickel ternary cov ntaub ntawv.

Peb lub tuam txhab roj teeb saum toj kawg nkaus hauv ntiaj teb hais txog kev teeb tsa lub peev xwm ntawm cov roj teeb hluav taws xob tau ua kom pom tseeb tias high-nickel ternary yog txoj hauv kev loj hlob (Ningde era - NCM622/811, Nyiv Panasonic - NCA, Kaus Lim Qab Teb LG Chem - NCM622. / 811), CR3 qhov kev lag luam sib koom tau mus txog ze li ob feem peb thaum tuav tus nqi loj hlob.Nyob rau hauv lub neej yav tom ntej, nrog rau kev txhim kho lub peev xwm ntawm high-nickel ternary nyob rau hauv lub zog tshiab tsheb, lithium hydroxide raws li cov khoom tseem ceeb kuj yuav coj mus rau hauv ib qho chaw loj hlob tsis tau muaj dua.

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