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(1) Lithium cobalt oxide yuav maj mam hloov los ntawm cov ntaub ntawv ternary. Cov ntaub ntawv sib xyaw ua ke muaj qhov zoo ntawm lithium cobalt oxide, lithium nickel oxide thiab lithium manganate cov ntaub ntawv, thiab muaj tus nqi zoo dua. Txawm hais tias Tesla thawj qauv Roadster siv 18650 lithium cobalt oxide roj teeb thaum nws tau tsim, nws thib ob tsim qauv tsim qauv S siv Panasonic tau kho cov khoom siv ternary roj teeb, uas yog nickel-cobalt-aluminium ternary cathode cov khoom siv roj teeb. Cov. Tus nqi siab ntawm lithium cobalt oxide roj teeb yog pom tseeb hauv qhov sib piv ntawm ob qho qauv ua ntej thiab tom qab Tesla. Model S siv ntau dua 8,000 roj teeb, uas yog ntau dua li 1,000 ntau ntawm Roadster, tab sis tus nqi tau nqis 30%. Tam sim no, NCM ternary cov ntaub ntawv rau cov khoom siv ua haujlwm siab lub zog lithium roj teeb tau siv dav siv txawv teb chaws, tab sis cov tuam txhab Suav tseem tsis tau tsim cov khoom lag luam loj.
(2) Qhov feem ntawm lithium manganate yuav nce ntxiv. Piv nrog lithium cobalt oxide cathode cov ntaub ntawv, lithium manganese oxide muaj qhov zoo ntawm cov ntaub ntawv nyoos ntau, tus nqi qis thiab tsis muaj tshuaj lom. Qhov tsis zoo ntawm kev siv cov txheej txheem lithium manganese oxide LiMnO₂ ua cov khoom siv hluav taws xob zoo rau cov roj ntsha lithium-ion yog tias txawm hais tias lub peev xwm muaj peev xwm, nws tsis ruaj khov thaum kub, thiab nws yooj yim los hloov mus rau hauv spinel qauv thaum them thiab tawm, nyob rau hauv ntau muaj peev xwm lwj. Daim ntawv thov ntawm cov ntawv sau cov khoom siv roj ntsha lithium yog cov ntse nyob hauv cov neeg siv khoom lag luam roj teeb, thiab cov roj teeb hluav taws xob tsuas yog cov roj teeb hluav taws xob roj teeb.
(3) Lithium iron phosphate tseem muaj ntau chav rau kev hloov kho tshiab ntawm kev siv thev naus laus zis. Kev ua haujlwm tsis tshua muaj kev ntsuas thiab tus nqi tawm ntawm cov roj ntsha lithium iron phosphate cathode cov khoom tuaj yeem mus txog qib ntawm lithium cobalt oxide, thiab nws tseem yog lub hwj chim tseem muaj roj teeb khoom ntawm tam sim no. Txawm li cas los xij, vim muaj cov kev txwv tsis pub nkag, cov xwm yeem thiab lub zog ntawm lub zog ntawm cov roj ntsha lithium iron phosphate battery yog qhov tsawg. Nyob rau hauv Suav teb, muaj cov roj qub lithium iron phosphate lub zog cia tshuab, tab sis kev lag luam tam sim no ntawm lithium iron phosphate cov ntaub ntawv nyob hauv Suav teb tseem qis dua cov theem ntawm cov teb chaws tsim.
Hauv kev lag luam ntawm cov roj teeb roj teeb cathode cov khoom lag luam, cov tuam txhab roj teeb hluav taws xob hauv Suav, Nyiv, Kaus Lim Qab Teb, thiab Tebchaws Asmeskas siv cov khoom sib txawv cov khoom siv; Cov tuam txhab Suav feem ntau siv cov lithium iron phosphate, thiab cov tuam txhab Japanese thiab Kauslim feem ntau yog siv cov khoom siv lithium manganate thiab ternary. Nws kwv yees tias nyob rau xyoo 2015 qhov kev faib ua feem ntawm cov khoom siv ternary nyob rau hauv cov ntaub ntawv cathode yuav nce mus txog 35%, qhov kev faib ua feem ntawm lithium manganate yuav nce mus txog 30%, thiab qhov kev faib ua feem ntawm lithium cobalt oxide yuav poob mus rau 25%.
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