Key Takeaways
- Ntau yam tshiab ntawm cov thev naus laus zis tau tsim los ua kom ntev roj teeb lub neej.
- Cov kws tshawb fawb tsis ntev los no tau tshaj tawm tias lawv tau pom txoj hauv kev los ua kom lub neej ntawm cov roj teeb muaj zog.
- Muaj kev txhawj xeeb txog kev nyab xeeb ntawm lithium-ion roj teeb.
Koj lub roj teeb lub xov tooj ntawm lub xov tooj smartphone yuav raug ntsuas ib hnub ntau dua li teev.
Cov kws tshawb fawb los ntawm Nyij Pooj Advanced Institute of Science thiab Technology tau tshaj tawm tias pom ib txoj hauv kev los ua kom lub neej ntev ntawm roj teeb. Nws yog ib qho ntawm kev nce qib ntawm kev nce qib hauv thaj chaw ntawm lub zog cia.
"Qhov kev tshawb fawb no yog qhov tseem ceeb, thiab thaum kawg cov kev tshawb fawb thiab kev sim yuav tsum tau txhais ua lub roj teeb ntev dua, uas yog qhov tseem ceeb los ntawm ob qho tib si ib puag ncig thiab kev lag luam, " Jack Kavanaugh, CEO ntawm lub tuam txhab cia lub zog Nanotech Energy, leej twg tsis koom nrog kev kawm Nyij Pooj, hais hauv kev xam phaj email.
Peb Xav Tau Roj Teeb Zoo dua
Nyob rau hauv daim ntawv tsis ntev los no, cov kws tshawb fawb tau hais tias cov graphite anodes siv dav hauv lub roj teeb xav tau ib daim ntawv tuav cov ntxhia ua ke, tab sis cov poly binder poob luv. Lawv tab tom tshawb nrhiav ib yam tshiab ntawm cov ntawv khi ua los ntawm cov copolymer, ua cov roj teeb ntev dua.
cov cuab yeej siv roj teeb tam sim no tawm ntau yam xav tau. Hom nrov tshaj plaws ntawm cov roj teeb rechargeable hauv cov neeg siv khoom siv hluav taws xob tam sim no yog lithium-ion. Thaum lawv tuaj yeem tuav thiab tso tawm ntau lub zog piv nrog lwm cov thev naus laus zis, lawv muaj qee qhov kev txwv.
"Rau ib qho, lawv lub peev xwm degrades proportionally nrog tus lej ntawm cov nqi / tso tawm," piav qhia Bob Blake, tus lwm thawj coj ntawm tus kws tshaj lij dev dab tshos Fi, hauv kev sib tham hauv email. "Koj feem ntau tuaj yeem cia siab tias lub roj teeb lithium-ion tsuas yog khaws cia li 80 feem pua ntawm nws qhov peev xwm qub tom qab 500 tus nqi / tawm mus."
Tseem muaj kev txhawj xeeb ntxiv txog kev nyab xeeb ntawm lithium-ion roj teeb. Xyoo tas los, BMW tau rov qab ntau dua 26,000 lub tsheb plug-in hybrid uas muaj kev pheej hmoo ntawm hluav taws. Thaum Lub Ob Hlis, Hyundai tau pib rov qab los ntawm 76,000 Hyundai Kona EVs hauv South Kauslim tom qab ntau tshaj li kaum tawm cov lus ceeb toom ntawm hluav taws kub hauv nws cov roj teeb Kona EV.
Roj teeb Boosts tuaj yeem nyob ntawm ntug
Ntau lub tuam txhab thiab cov kws tshawb fawb tab tom ua haujlwm nrog txoj hauv kev kom tau txais lub neej ntau dua los ntawm cov khoom siv.
Ntawm Syracuse University tus xibfwb Ian Hosein lub chaw kuaj mob, nws thiab nws pab pawg tshawb fawb txog kev tshawb fawb txog cov ntaub ntawv uas tuaj yeem siv rau tiam tom ntej ntawm cov roj teeb. Lithium, cov khoom siv feem ntau siv hauv cov roj teeb, tuaj yeem kim, nyuaj rau rov siv dua, thiab ua rau overheat. Hosein tab tom sim ntau cov zaub mov xws li calcium, txhuas, thiab sodium kom pom tias lawv tuaj yeem siv los tsim cov roj teeb tshiab.
"Thaum peb ua haujlwm hauv cov ntaub ntawv tshawb fawb, cov ntaub ntawv peb tsim tau ua kom tau raws li ntau qhov kev cia siab sib txawv," Hosein tau hais hauv xov xwm tshaj tawm. "Peb tab tom xav txog dab tsi tshwm sim dhau lithium. Lwm cov ntaub ntawv tuaj yeem muaj kev nyab xeeb dua, tsis tshua muaj nqi thiab zoo ib puag ncig."
Qee lub tuam txhab tab tom sim rov ua cov qauv tam sim no ntawm Lithium-ion roj teeb. Lub tuam txhab Enovix, piv txwv li, thov kom tau tsim cov roj teeb lithium-ion nrog lub zog ntom ntom tsib xyoos ua ntej cov khoom lag luam-tus qauv tam sim no.
Cameron Dales, tus thawj coj dav dav thiab tus thawj coj ua lag luam ntawm ENOVIX, tau hais hauv kev sib tham hauv email tias lub tuam txhab cov khoom siv roj teeb tam sim no xa tawm 27%-110% ntau zog dua li lwm tus hauv khw.
Ob lwm txoj kev vam meej hauv kev txhim kho yog cov organic radicals thiab roj teeb qab zib. Organic radicals tuaj yeem muab kev sib piv rau Li-Ion siv cov organic polymers tshwj xeeb, thaum ua tau yooj yim thiab ntau tus phooj ywg ib puag ncig. Cov roj teeb qab zib siv cov piam thaj thiab cov enzymes nquag los tsim hluav taws xob thiab tuaj yeem ua kom muaj zog-dense.
hom kev tshawb fawb no yog qhov tseem ceeb, thiab thaum kawg cov kev tshawb xav thiab kev sim yuav tsum tau txhais ua lub roj teeb ntev dua.
"Lawv nyob rau theem kev loj hlob sai heev, thiab txawm tias lawv puas tau mus rau kev ua lag luam, nws yuav tsis yog tsawg kawg kaum xyoo," Javier Nadal, UK tus thawj coj ntawm cov khoom lag luam tawm tswv yim tshiab BlueThink, tau hais hauv kev xam phaj email.
Nadal kwv yees cov roj teeb tshiab no yuav hloov pauv tus kheej thev naus laus zis hauv kaum xyoo tom ntej.
"Cov khoom uas peb twb paub lawm yuav tau zoo dua," Nadal hais. "Piv txwv li, cov xov tooj thiab cov khoos phis tawj ua nyias thiab sib dua thaum nce lawv lub sijhawm ua haujlwm. Lub zog tshiab kev daws teeb meem ua rau cov khoom tshiab uas tuaj yeem hloov pauv cov neeg siv kev paub dhau los."
