Qhov zoo electrode ntawmlithium-ion roj teebyog lithium hlau phosphate khoom, uas muaj qhov zoo ntawm kev nyab xeeb kev ua tau zoo thiab lub neej voj voog.Cov no yog ib qho tseem ceeb tshaj plaws kev ntsuas ntawm lub hwj chim roj teeb.Lifepo4 roj teeb nrog 1C them thiab tawm lub voj voog lub neej tuaj yeem ua tiav 2000 zaug, qhov sib tsoo tsis tawg, nws tsis yooj yim rau hlawv thiab tawg thaum overcharged.Lithium hlau phosphate cathode cov ntaub ntawv ua kom muaj peev xwm loj lithium-ion roj teeb yooj yim siv hauv cov koob.
Lithium hlau phosphate ua cov khoom siv cathode
Lifepo4 roj teeb hais txog lub roj teeb lithium-ion siv lithium hlau phosphate ua cov khoom siv electrode zoo.Cov ntaub ntawv zoo electrode ntawm lithium-ion roj teeb feem ntau suav nrog lithium cobaltate, lithium manganate, lithium nickelate, ternary cov ntaub ntawv, lithium hlau phosphate, thiab lwm yam.Ntawm lawv, lithium cobaltate yog cov khoom siv hluav taws xob zoo siv hauv cov roj teeb lithium-ion feem ntau.Nyob rau hauv txoj cai, lithium hlau phosphate kuj yog ib tug embedding thiab deintercalation txheej txheem.Lub hauv paus ntsiab lus no zoo ib yam li lithium cobaltate thiab lithium manganate.
lifepo4 roj teeb zoo
1. Kev them nyiaj siab thiab tso tawm ua haujlwm
Lifepo4 roj teeb yog lithium-ion thib ob roj teeb.Ib lub hom phiaj tseem ceeb yog rau cov roj teeb fais fab.Nws muaj qhov zoo ntawm NI-MH thiab Ni-Cd roj teeb.Lifepo4 roj teeb muaj cov nqi siab thiab tso tawm kev ua haujlwm, thiab cov nqi hluav taws xob thiab kev ua haujlwm tawm tuaj yeem ncav cuag ntau dua 90% nyob rau hauv cov xwm txheej ntawm paug, thaum lub roj teeb txhuas-acid yog li 80%.
2. lifepo4 roj teeb muaj kev ruaj ntseg zoo
PO daim ntawv cog lus nyob rau hauv lithium hlau phosphate siv lead ua yog ruaj khov thiab nyuaj rau decompose, thiab tsis tawg los yog kub zoo li lithium cobaltate los yog tsim ib tug muaj zog oxidizing tshuaj txawm nyob rau hauv kub los yog overcharge, thiab yog li muaj kev ruaj ntseg zoo. , ib feem me me ntawm cov qauv tau pom tias muaj qhov tshwm sim kub hnyiab hauv qhov acupuncture lossis luv luv-circuit test, tab sis tsis muaj qhov tshwm sim tawg.Nyob rau hauv qhov kev sim overcharge, ib tug high-voltage nqi uas yog ob peb zaug siab dua tus kheej-tso tawm voltage yog siv, thiab nws tau pom tias tseem muaj ib tug tawg tshwm sim.Txawm li cas los xij, nws txoj kev ruaj ntseg overcharge tau zoo dua qub piv rau cov kua roj electrolyte lithium cobalt oxide zoo tib yam.
3. Lifepo4 roj teeb lub neej ntev
Lifepo4 roj teeb hais txog lub roj teeb lithium-ion siv lithium hlau phosphate ua cov khoom siv electrode zoo.Lub neej ntev ntawm txhuas-acid roj teeb muaj lub neej voj voog txog li 300 zaug, thiab qhov siab tshaj plaws yog 500 zaug.Lub lithium hlau phosphate fais fab roj teeb muaj lub neej voj voog ntawm ntau tshaj 2000 zaug, thiab tus qauv nqi (5-teev tus nqi) tuaj yeem siv txog 2000 zaug.Lub roj teeb zoo tib yam yog "ib nrab xyoo tshiab, ib nrab xyoo, kev tu thiab tu rau ib nrab xyoo", txog li 1 ~ 1.5 xyoo, thiab lub roj teeb lifepo4 yog siv nyob rau hauv tib txoj kev, lub neej txoj kev xav yuav mus txog 7 ~ 8 xyoo.Xav paub ntau ntxiv, qhov kev ua tau zoo tus nqi piv yog theoretically ntau tshaj plaub npaug ntawm cov roj ntsha lead-acid.High-tam sim no tawm tuaj yeem them sai sai thiab tawm nrog qhov siab tam sim no 2C.Nyob rau hauv lub charger tshwj xeeb, lub roj teeb tuaj yeem them tag nrho hauv 1.5 feeb ntawm 1.5C them, thiab qhov pib tam sim no tuaj yeem ncav cuag 2C, tab sis cov roj teeb lead-acid tsis muaj qhov ua tau zoo li no.
4. Kev ua haujlwm kub zoo
Lub ncov kub ntawm lithium hlau phosphate tuaj yeem ncav cuag 350 ° C -500 ° C thaum lithium manganate thiab lithium cobaltate tsuas yog nyob ib ncig ntawm 200 ° C. Dav kev khiav hauj lwm kub ntau yam (-20C-+75C), nrog rau kub-resistant, lithium hlau phosphate. hluav taws xob cua sov ncov tuaj yeem ncav cuag 350 ° C-500 ° C, thaum lithium manganate thiab lithium cobalt oxide tsuas yog ntawm 200 ° C.
5. Lifepo4 roj teeb muaj peev xwm
Nws muaj peev xwm loj dua li cov roj teeb zoo tib yam (lead-acid, thiab lwm yam).Lub peev xwm monomer yog 5AH-1000AH.
6. Tsis nco qab
Rechargeable roj teeb ua hauj lwm nyob rau hauv tej yam kev mob uas feem ntau tsis tau tag nrho tawm, thiab lub peev xwm yuav sai sai poob qis dua lub peev xwm.Qhov tshwm sim no hu ua lub cim xeeb nyhuv.Nco zoo li nickel-hlau hydride thiab nickel-cadmium roj teeb, tab sis lub lifepo4 roj teeb tsis muaj qhov tshwm sim no, txawm hais tias lub roj teeb nyob hauv lub xeev, nws tuaj yeem siv nrog tus nqi, tsis tas yuav tso tawm thiab rov ua dua.7.Lub teeb ntawm lifepo4 roj teeb
Lub roj teeb lifepo4 ntawm tib lub peev xwm tshwj xeeb yog 2/3 ntawm qhov ntim ntawm cov roj ntsha lead-acid, thiab qhov hnyav yog 1/3 ntawm cov roj lead-acid.
8. Lifepo4 roj teebyog ib puag ncig tus phooj ywg
Lub roj teeb feem ntau suav tias tsis muaj cov hlau hnyav thiab cov hlau tsis tshua muaj (Ni-MH roj teeb yuav tsum muaj cov hlau tsis tshua muaj), tsis muaj tshuaj lom (SGS tau lees paub), tsis muaj kuab paug, raws li European RoHS cov cai, yog daim ntawv pov thawj roj teeb ntsuab. .Yog li, vim li cas vim li cas cov roj teeb lithium tau nyiam los ntawm kev lag luam feem ntau yog kev xav txog ib puag ncig.Yog li ntawd, lub roj teeb tau suav nrog hauv "863" lub teb chaws txoj kev txhim kho high-tech hauv lub sijhawm "Kaum Tsib Tsib Xyoo" thiab tau dhau los ua kev txhawb nqa tseem ceeb hauv lub tebchaws thiab kev txhawb nqa txoj haujlwm.Nrog rau Tuam Tshoj txoj kev nkag mus rau WTO, kev xa tawm ntim ntawm cov tsheb kauj vab hluav taws xob hauv Suav teb yuav nce sai, thiab cov tsheb kauj vab hluav taws xob nkag mus rau Tebchaws Europe thiab Tebchaws Meskas tau tsim kom muaj cov roj teeb uas tsis muaj kuab paug.Kev ua tau zoo ntawm cov roj teeb lithium-ion feem ntau yog nyob ntawm cov khoom zoo thiab tsis zoo.Lithium hlau phosphate yog cov khoom siv roj teeb lithium uas tau tshwm sim hauv xyoo tas los no.Nws kev nyab xeeb kev ua tau zoo thiab lub voj voog lub neej yog qhov sib piv rau lwm cov ntaub ntawv.Cov kev qhia tseem ceeb tshaj plaws ntawm lub roj teeb.Lifepo4 roj teeb muaj qhov zoo ntawm cov tsis muaj tshuaj lom, tsis muaj kuab paug, kev nyab xeeb zoo, ntau yam khoom siv raw, tus nqi qis, thiab lub neej ntev.Nws yog ib qho zoo tagnrho cathode khoom rau ib tiam tshiab ntawmlithium-ion roj teeb.