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Waterma ua li cas ua kom qhov kub thiab txias ntawm lithium hlau phosphate ion roj teeb?

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Ob peb hnub dhau los, ntawm Lub Rooj Sib Tham Thoob Ntiaj Teb Tshiab Zog Tsav Tsheb (GNEV7), Watma Tus Lwm Thawj Coj Tus Thawj Coj Rao Minmin tau luam tawm lub ntsiab lus ntawm "Kev Tshawb Fawb Txog Kev Ua Haujlwm cuam tshuam rau Lithium Ion roj teeb ntawm Lithium Ion". Cov ntsiab lus tau teeb tsa raws li hauv qab no: Ua ntej, Rao Minmin tau qhia, Watma tau tsim nyob rau xyoo 2002, Lub Hauv Paus Loj hauv Shenzhen. Tam sim no muaj ntau dua 12,000 tus neeg ua haujlwm, thiab thawj pawg ntawm cov tuam txhab roj teeb tau nkag mus rau cov tuam txhab roj teeb lithium-ion muaj zog hauv Ministry of Industry thiab Information Technology, suav nrog ntau dua 50,000 Watma roj teeb khiav ntawm txoj kev.

Tam sim no, feem ntau ntawm lub hwj chim lithium-ion roj teeb nyob rau hauv lub tshav pob ntawm hluav taws xob neeg nrog caij tsheb yog lithium hlau phosphate. Rao Dingmin tau hais tias muaj ntau qhov sib piv zoo ntawm lithium hlau phosphate: lub voj voog lub neej thiab kev nthuav dav zoo dua, tab sis qhov kub tsis tshua muaj yuav ntev me ntsis dua li lwm cov roj teeb. Qhov thib ob, lub tsheb fais fab tam sim no muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov kub thiab txias.

Lub tsheb hluav taws xob uas tuaj yeem khiav 160 mais ntawm chav tsev kub yuav mus rau -20 degrees tsuas yog khiav 60-80 mais, thiab qhov ua tau zoo yog pom tseeb dua. Qhov thib ob, qhov teeb meem ntawm kev them nyiaj qis thaum lub caij ntuj no, suav nrog kev them nyiaj nyuaj, kev nyab xeeb. Rau lub lithium hlau phosphate ion roj teeb, Watma tau ua kom ntxaws kev tshawb fawb ntawm nws cov yam ntxwv ntawm qhov kub thiab txias: ib qho yog qhov cuam tshuam ntawm qhov zoo electrode, phosphate zoo electrode nws tus kheej yog qhov tsis zoo ntawm electron conductivity, thiab polarization yog ntau dua, txo lub peev xwm ua si; qhov tsis zoo thib ob, tus ncej tsis zoo no yog qhov tseem ceeb rau tus nqi qis, vim tias nws yuav cuam tshuam txog kev ruaj ntseg; qhov thib peb yog cov khoom ntawm electrolyte, yuav nce ntawm qhov kub thiab txias, lithium ion migration impedance yuav nce; Plaub yog lub binder, uas tam sim no cuam tshuam ntau dua los ntawm kev ua haujlwm kub ntawm lub roj teeb.

Tag nrho lub tswv yim ntawm Watma yog los ntawm qhov zoo electrode, tsis zoo electrode, electro-hydraulic, thiab nplaum plaub-thooj uas tsis muaj qhov kub thiab txias ntawm lithium hlau phosphate ion roj teeb. Hais txog qhov zoo, nws yog tam sim no nanomechanically, nws qhov loj me, tsis kam, thiab AB planar axis cog yuav cuam tshuam rau cov yam ntxwv ntawm tag nrho cov roj teeb uas tsis kub. Lithium lithium hlau phosphate yog npaj los ntawm peb txheej txheem.

Los ntawm peb cov kev npaj tag nrho, sib txawv lithium hlau phosphate txheej txheem nano-coated, peb saib los ntawm cov axis ntawm AB, nce lithium Cov ion tsiv teb tsaws channel yuav loj, uas yuav pab txhim kho kev ua haujlwm ntawm lub roj teeb. Cov txheej txheem sib txawv muaj qhov sib txawv ntawm qhov zoo electrode, thiab cov yam ntxwv ntawm qhov kub thiab txias ntawm lub roj teeb ua los ntawm 100 mus rau 200 nano-particle txoj kab uas hla phosphate, uas tuaj yeem tso tawm 94% ntawm -20 degrees, uas yog particle inch ntawm nanofence shortening txoj kev ntawm kev tsiv teb tsaws, Nws kuj txhim kho qhov kev ua tau zoo ntawm qhov kub thiab txias thiab paug tawm, vim hais tias cov lithium deformation yog qhov zoo. Xav txog kev them tus yam ntxwv los ntawm qhov tsis zoo electrode, Rao Dingyi ntseeg hais tias qhov kub thiab txias ntawm lithium-ion roj teeb yog qhov tseem ceeb, suav nrog qhov loj me ntawm cov khoom me me thiab lub suab ntawm cov electrode tsis zoo, xaiv peb qhov sib txawv ntawm cov graphite uas yog qhov tsis zoo electrode los kawm cov txheej txheem sib txawv thiab cov granules.

Kev cuam tshuam ntawm txoj kev mus rau qhov tsis tshua muaj kub yam ntxwv. Los ntawm peb cov ntaub ntawv, cov nplej graphite ntawm txheej yog loj, los ntawm impedance, lub cev impedance thiab ion migration impedance yog me me. Hais txog kev them nqi, Rao Shanyi ntseeg hais tias qhov teeb meem paug tawm tsis yog qhov loj nyob rau hauv qhov kub thiab txias thaum lub caij ntuj no, nws yog ib qho tseem ceeb rau cov nqi qis.

Vim hais tias nyob rau hauv kab rov tav ndlwg ratio, 1C los yog 0.5C cross-flow ratio yog ib qho tseem ceeb heev, mus tas li siab mus ntev heev, los ntawm kev txhim kho peb txawv graphite sib piv, ib tug kuj loj nyob rau hauv -20 degree them tas li ndlwg ratio Txhim kho, los ntawm 40% mus rau 70%, qhov nce nyob rau hauv cov txheej txheem, kuj muaj qhov loj me me. Cov khoom no ntawm cov electrolyte, nyob rau hauv -20 degrees, -30 degrees, lub electrolyte, nce viscosity, thiab deteriorate cov kev ua tau zoo.

Electrolyte los ntawm peb yam: hnyav, lithium ntsev, additive. Rao Dingmin tau hais tias, "Los ntawm kev sim, peb pom tias cov kuab tshuaj cuam tshuam rau qhov kub ntawm lithium hlau phosphate ion roj teeb los ntawm 70%, muaj ntau dua 90%, muaj ntau dua kaum lub ntsiab lus; qhov thib ob, cov roj lithium sib txawv muaj cov yam ntxwv ntawm qhov kub thiab txias. Kev cuam tshuam.

Peb kho cov kuab tshuaj thiab cov lithium ntsev, thiab qhov kub thiab txias additive tuaj yeem ua rau kom muaj peev xwm tawm ntawm 85% mus rau 90%, uas yog, nyob rau hauv tag nrho cov electrolytic kua system, hnyav, lithium ntsev, thiab additives yog rau peb lub hwj chim lithium ion roj teeb. Muaj qee yam cuam tshuam rau cov yam ntxwv ntawm qhov kub thiab txias, nrog rau lwm cov khoom siv. "Adhesive, Rao Dingyi hais tias muaj peb hom, ob lub ntsiab lus, ib kab.

Thaum lub -20 degree tsub nqi thiab tso tawm, ob lub ntsiab lus tej zaum yuav ua ntau tshaj 70 mus rau 80 cycles, tag nrho cov ncej yog raws li txoj cai ntawm cov nplaum tsis ua hauj lwm, thiab kev siv ntawm linear binders tsis muaj qhov teeb meem no. Tom qab tag nrho cov txheej txheem, los ntawm kev txhim kho ntawm qhov zoo electrode, qhov tsis zoo electrode, electrolyte mus rau lub binder, peb muaj cov txiaj ntsig zoo ntawm lithium hlau phosphate ion roj teeb monomer, ib qho yog them tus yam ntxwv, -20, -30, - 40 degrees ntawm qhov kub ntawm 0.5C them qhov piv txwv tam sim no tuaj yeem ncav cuag 62.

9%. Feem ntau, lub zog tshiab tsheb yog ib txwm ua haujlwm nyob rau sab qaum teb, tsis tsuas yog lub roj teeb monomer tuaj yeem daws teeb meem kev them nyiaj, thiab tseem muaj kev hloov tshiab ntawm BMS los ntawm Pob, thiab kev tsim kho tshiab ntawm cov qauv lav. Guarantee lub zog tshiab tsheb nyob rau sab qaum teb uas tsis muaj qhov kub thiab txias ua haujlwm.

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Tau txais kev sib cuag nrog peb
Cov Lus Pom Zoo
Kev paub Xov xwm Hais txog Solar System
Tsis muaj ntaub ntawv

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