Txij li thaum muaj kev lag luam ntawm lithium-ion roj teeb hauv xyoo 1991, graphite tau yog cov khoom siv tsis zoo electrode rau cov roj teeb.Lithium titanate, raws li ib yam tshiab ntawm cov khoom tsis zoo electrode rau lithium-ion roj teeb, tau txais kev saib xyuas thaum xyoo 1990s vim nws qhov kev ua tau zoo heev.Piv txwv li, cov ntaub ntawv lithium titanate tuaj yeem tswj tau qhov kev ruaj ntseg ntawm lawv cov qauv siv lead ua thaum lub sij hawm tso thiab tshem tawm cov lithium ions, nrog rau cov kev hloov me me ntawm cov lattice tas li (ntim hloov pauv.
Cov khoom siv "zero strain" electrode zoo heev rau lub neej voj voog ntawm lithium titanate roj teeb.Lithium titanate muaj qhov tshwj xeeb peb-dimensional lithium ion diffusion channel nrog cov qauv spinel, uas muaj qhov zoo xws li cov yam ntxwv ntawm lub zog zoo thiab kev ua haujlwm siab thiab qis qis.Piv nrog rau cov ntaub ntawv carbon tsis zoo electrode, lithium titanate muaj peev xwm ntau dua (1.55V siab dua lithium hlau), uas ua rau cov khoom-kua txheej feem ntau loj hlob nyob rau saum npoo ntawm electrolyte thiab carbon tsis zoo electrode tsis tsim rau ntawm lithium titanate. .
Qhov tseem ceeb tshaj, nws yog qhov nyuaj rau lithium dendrites tsim rau ntawm qhov chaw ntawm lithium titanate nyob rau hauv qhov voltage ntau ntawm kev siv roj teeb.Qhov no feem ntau tshem tawm qhov ua tau ntawm luv luv Circuit Court tsim los ntawm lithium dendrites hauv lub roj teeb.Yog li kev nyab xeeb ntawm lithium-ion roj teeb nrog lithium titanate raws li qhov tsis zoo electrode tam sim no yog qhov siab tshaj plaws ntawm txhua hom lithium-ion roj teeb uas tus sau tau pom.
Cov neeg siv khoom lag luam feem ntau tau hnov tias lithium roj teeb lub neej ntawm lithium titanate hloov graphite raws li cov khoom tsis zoo electrode tuaj yeem ncav cuag kaum tawm txhiab zaus, siab dua li cov roj teeb lithium-ion, thiab nws yuav tuag tom qab tsuas yog ob peb txhiab lub voj voog. .
Vim tias feem ntau cov kws tshaj lij lithium-ion roj teeb cov kws tshaj lij yeej tsis tau pib ua cov khoom siv roj teeb lithium titanate, lossis tsuas yog ua rau lawv ob peb zaug thiab xaus sai sai thaum ntsib teeb meem.Yog li lawv tsis tuaj yeem ua siab mos siab muag thiab xav ua tib zoo xav txog vim li cas feem ntau cov roj teeb lithium-ion tuaj yeem ua tiav lub neej ntawm 1000-2000 tus nqi thiab tawm mus?
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Puas yog qhov laj thawj tseem ceeb rau lub neej luv luv ntawm cov roj teeb lithium-ion ib txwm muaj vim yog ib qho ntawm nws cov khoom tseem ceeb - lub nra hnyav ntawm graphite tsis zoo electrode?Thaum lub graphite tsis zoo electrode yog hloov nrog spinel hom lithium titanate tsis zoo electrode, qhov pib zoo tib yam lithium-ion roj teeb tshuaj muaj peev xwm yuav cycled kaum txhiab los yog ntau pua txhiab zaus.
Tsis tas li ntawd, thaum muaj coob tus neeg tham txog lub zog tsawg ntawm lithium titanate roj teeb, lawv saib qhov yooj yim tab sis tseem ceeb qhov tseeb: lub neej ntev ntev, kev nyab xeeb txawv txawv, cov yam ntxwv ntawm lub zog zoo, thiab kev lag luam zoo ntawm lithium titanate roj teeb.Cov yam ntxwv no yuav yog lub hauv paus tseem ceeb rau kev lag luam loj loj lithium-ion zog cia.
Nyob rau hauv lub xyoo dhau los los yog li ntawd, kev tshawb fawb ntawm lithium titanate roj teeb technology tau booming nyob rau hauv lub domestic thiab txawv teb chaws.Nws cov khoom lag luam tuaj yeem muab faib ua cov khoom siv lithium titanate, tsim cov roj teeb lithium titanate, kev koom ua ke ntawm lithium titanate roj teeb, thiab lawv cov kev siv hauv lub tsheb hluav taws xob thiab lub zog cia khoom lag luam.
1. Cov khoom siv lithium titanate
Thoob ntiaj teb, muaj cov tuam txhab ua lag luam hauv kev tshawb fawb thiab kev lag luam ntawm lithium titanate cov ntaub ntawv, xws li Oti Nanotechnology los ntawm Tebchaws Meskas, Ishihara Industries los ntawm Nyiv, thiab Johnson&Johnson los ntawm United Kingdom.Ntawm lawv, cov khoom siv lithium titanate tsim los ntawm American titanium muaj kev ua tau zoo heev ntawm tus nqi, kev nyab xeeb, kev pab lub neej ntev, thiab qhov kub thiab txias.Txawm li cas los xij, vim muaj cov txheej txheem ntau lawm ntev thiab meej, cov nqi tsim khoom kuj tseem siab, ua rau nws nyuaj rau kev lag luam thiab txhawb nqa.
Post lub sij hawm: Mar-14-2024