Disadvantages ntawm lithium hlau phosphate roj teeb
Txawm hais tias cov khoom siv muaj peev xwm rau kev siv thiab kev tsim kho, ntxiv rau nws qhov zoo, qhov tseem ceeb yog seb cov khoom puas muaj qhov tsis xws luag.
Tam sim no, lithium hlau phosphate tau xaiv dav raws li cov khoom siv cathode ntawm lub zog lithium-ion roj teeb hauv Suav teb.Cov kws tshuaj ntsuam xyuas kev lag luam los ntawm tsoomfwv, cov chaw tshawb fawb tshawb fawb, cov tuam txhab lag luam thiab cov tuam txhab kev nyab xeeb txawm tias qhov zoo ntawm cov khoom siv no thiab suav tias yog txoj kev loj hlob ntawm cov roj teeb lithium-ion.Raws li kev txheeb xyuas ntawm cov laj thawj, feem ntau yog ob lub ntsiab lus hauv qab no: Ua ntej, vim muaj kev cuam tshuam ntawm kev tshawb fawb thiab kev txhim kho hauv Tebchaws Meskas, Valence thiab A123 tuam txhab hauv Tebchaws Meskas thawj zaug siv lithium hlau phosphate ua cov khoom siv cathode. ntawm lithium ion roj teeb.Thib ob, lithium manganate cov ntaub ntawv nrog cov kub kub zoo thiab kev ua haujlwm cia uas tuaj yeem siv rau lub zog lithium-ion roj teeb tsis tau npaj rau hauv Suav teb.Txawm li cas los xij, lithium hlau phosphate kuj tseem muaj qhov tsis xws luag uas tsis tuaj yeem tsis quav ntsej, uas tuaj yeem ua tiav raws li hauv qab no:
1. Nyob rau hauv cov txheej txheem sintering ntawm lithium hlau phosphate npaj, nws muaj peev xwm hais tias hlau oxide yuav raug txo kom yooj yim hlau nyob rau hauv high kub txo qhov cua.Hlau, feem ntau txwv tsis pub nyob rau hauv cov roj teeb, tuaj yeem ua rau micro luv luv Circuit Court ntawm cov roj teeb.Qhov no yog qhov laj thawj tseem ceeb vim li cas Nyiv tsis tau siv cov khoom siv no ua cov khoom siv cathode ntawm cov roj teeb lithium ion fais fab.
2. Lithium hlau phosphate muaj qee qhov kev ua haujlwm tsis zoo, xws li tamping ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntawm lithium ion roj teeb.Kev ua haujlwm kub qis yog qhov tsis zoo, txawm tias nws cov nano - thiab cov roj carbon txheej tsis daws qhov teeb meem no.Thaum Dr. Don Hillebrand, tus thawj coj ntawm Lub Zog Cia System Center ntawm Argonne National Laboratory, tham txog qhov kub thiab txias ntawm lithium hlau phosphate roj teeb, nws tau piav qhia tias nws txaus ntshai.Lawv cov txiaj ntsig kev sim ntawm lithium hlau phosphate roj teeb tau pom tias lithium hlau phosphate roj teeb tsis tuaj yeem tsav tsheb fais fab ntawm qhov kub qis (qis dua 0 ℃).Txawm hais tias qee lub tuam txhab tau thov tias lub peev xwm tuav tau ntawm lithium hlau phosphate roj teeb yog qhov zoo ntawm qhov kub thiab txias, nws yog nyob rau hauv qhov tsis tshua muaj paug tam sim no thiab tsis tshua muaj hluav taws xob txiav tawm.Hauv qhov no, cov khoom siv tsis tuaj yeem pib txhua.
3. Cov nqi ntawm cov khoom siv thiab cov nqi tsim khoom ntawm cov roj teeb yog siab, cov khoom siv roj teeb muaj tsawg, thiab qhov sib xws tsis zoo.Txawm hais tias cov khoom siv hluav taws xob ntawm cov khoom siv tau raug txhim kho los ntawm nanocrystallization thiab carbon txheej ntawm lithium hlau phosphate, lwm yam teeb meem kuj tau tshwm sim, xws li kev txo qis zog, kev txhim kho cov nqi synthesis, kev ua haujlwm tsis zoo electrode thiab hnyav ib puag ncig. kev xav tau.Txawm hais tias cov tshuaj lom neeg Li, Fe thiab P hauv lithium hlau phosphate yog nplua nuj heev thiab tus nqi qis, tus nqi ntawm cov khoom npaj lithium hlau phosphate tsis tsawg.Txawm tias tom qab tshem tawm cov nqi tshawb fawb thiab kev tsim kho thaum ntxov, cov txheej txheem nqi ntawm cov khoom siv no ntxiv rau tus nqi siab dua ntawm kev npaj cov roj teeb yuav ua rau tus nqi kawg ntawm chav tsev cia khoom ntau dua.
4. Cov khoom tsis zoo sib xws.Tam sim no, tsis muaj lithium hlau phosphate khoom Hoobkas hauv Suav teb tuaj yeem daws qhov teeb meem no.Los ntawm qhov kev xav ntawm kev npaj cov khoom, cov tshuaj tiv thaiv ntawm lithium hlau phosphate yog cov tshuaj tiv thaiv heterogeneous, nrog rau cov khoom phosphate, hlau oxide thiab lithium ntsev, carbon ntxiv precursor thiab txo cov roj theem.Nyob rau hauv cov txheej txheem tshuaj tiv thaiv complex, nws yog ib qho nyuaj los xyuas kom meej qhov sib xws ntawm cov tshuaj tiv thaiv.
5. Teeb meem kev txawj ntse.Tam sim no, lub hauv paus patent ntawm lithium hlau phosphate yog tswv los ntawm University of Texas hauv Tebchaws Meskas, thaum cov pa roj carbon coated patent tau thov los ntawm Canadians.Ob daim patents no tsis tuaj yeem hla dhau.Yog tias patent royalties suav nrog tus nqi, cov khoom lag luam yuav raug nce ntxiv.
Tsis tas li ntawd, los ntawm cov kev paub dhau los ntawm R & D thiab tsim cov roj teeb lithium-ion, Nyiv yog thawj lub teb chaws ua lag luam roj teeb lithium-ion, thiab yeej ib txwm tuav lub lag luam high-end lithium-ion roj teeb.Txawm hais tias Tebchaws Meskas yog tus thawj coj hauv qee qhov kev tshawb fawb, txog tam sim no tsis muaj cov chaw tsim khoom loj lithium ion roj teeb.Yog li ntawd, nws yog qhov tsim nyog rau Nyij Pooj los xaiv hloov kho lithium manganate ua cov khoom siv cathode ntawm lub hwj chim hom lithium ion roj teeb.Txawm tias nyob hauv Tebchaws Meskas, ib nrab ntawm cov tuam txhab tsim khoom siv lithium hlau phosphate thiab lithium manganate ua cov khoom siv cathode ntawm lub zog hluav taws xob lithium ion roj teeb, thiab tsoomfwv tseem txhawb nqa kev tshawb fawb thiab kev tsim kho ntawm ob lub tshuab no.Raws li cov teeb meem saum toj no, lithium hlau phosphate yog qhov nyuaj rau kev siv dav hauv cathode cov khoom siv hluav taws xob lithium-ion roj teeb hauv tsheb tshiab thiab lwm yam haujlwm.Yog tias peb tuaj yeem daws qhov teeb meem ntawm kev ua haujlwm tsis zoo ntawm kev kub ceev thiab kev cia khoom ntawm lithium manganate, nws yuav muaj peev xwm zoo hauv kev siv cov roj teeb lithium-ion nrog nws qhov zoo ntawm tus nqi qis thiab kev ua haujlwm siab.
Post lub sij hawm: Oct-19-2022