Lub roj teeb fais fab hu ua lub plawv ntawm lub tsheb fais fab; hom, khoom siv, muaj peev xwm, kev nyab xeeb kev ua haujlwm, thiab lwm yam ntawm lub tsheb fais fab lub roj teeb tau dhau los ua qhov tseem ceeb "qhov ntev" thiab "tsis" rau kev ntsuas lub tsheb hluav taws xob. Tam sim no, tus nqi roj teeb ntawm lub tsheb hluav taws xob feem ntau yog 30% -40% ntawm tag nrho lub tsheb, uas tuaj yeem hais tias yog cov khoom siv tseem ceeb!
Tam sim no, cov roj teeb tseem ceeb siv hauv tsheb hluav taws xob hauv khw feem ntau muab faib ua ob hom: ternary lithium roj teeb thiab lithium hlau phosphate roj teeb. Tom ntej no, cia kuv piav qhia luv luv txog qhov sib txawv thiab qhov zoo thiab qhov tsis zoo ntawm ob lub roj teeb:
1. Cov khoom sib txawv:
Yog vim li cas vim li cas nws thiaj li hu ua "ternary lithium" thiab "lithium hlau phosphate" feem ntau yog hais txog cov tshuaj lom neeg ntawm "cov khoom siv electrode zoo" ntawm lub hwj chim roj teeb;
"Ternary lithium":
Cov khoom siv cathode siv lithium nickel cobalt manganate (Li (NiCoMn) O2) ternary cathode khoom rau lithium roj teeb. Cov khoom siv no ua ke cov txiaj ntsig zoo ntawm lithium cobalt oxide, lithium nickel oxide thiab lithium manganate, ua rau peb-theem eutectic system ntawm peb cov ntaub ntawv. Vim cov nyhuv ternary synergistic, nws cov kev ua tau zoo yog zoo dua li ib qho kev sib xyaw ua ke.
"Lithium hlau phosphate":
hais txog lithium-ion roj teeb siv lithium hlau phosphate ua cov khoom siv cathode. Nws cov yam ntxwv yog tias nws tsis muaj cov khoom muaj txiaj ntsig zoo xws li cobalt, cov khoom siv raw khoom yog qis, thiab cov peev txheej ntawm phosphorus thiab hlau muaj ntau nyob hauv lub ntiaj teb, yog li yuav tsis muaj teeb meem khoom noj.
Cov ntsiab lus
Ternary lithium cov ntaub ntawv tsis tshua muaj thiab tau nce nrog kev loj hlob sai ntawm cov tsheb fais fab. Lawv cov nqi yog siab thiab lawv raug txwv los ntawm cov khoom siv raw khoom. Qhov no yog tus yam ntxwv ntawm ternary lithium tam sim no;
Lithium hlau phosphate, vim tias nws siv qis dua ntawm cov hlau tsis tshua muaj / muaj txiaj ntsig thiab feem ntau pheej yig thiab ntau cov hlau, yog pheej yig dua li ternary lithium roj teeb thiab tsis tshua muaj kev cuam tshuam los ntawm cov khoom siv raw khoom. Qhov no yog nws tus yam ntxwv.
2. Lub zog sib txawv:
"Ternary lithium roj teeb": Vim yog siv cov khoom siv hlau ntau dua, lub zog ntom ntom ntawm cov roj teeb tseem ceeb ternary lithium feem ntau yog (140wh / kg ~ 160 wh / kg), uas yog qis dua li cov roj teeb ternary nrog cov nickel siab piv ( 160 w/kg～180 w/kg; qee qhov hnyav zog ceev tuaj yeem ncav cuag 180Wh-240Wh / kg.
"Lithium hlau phosphate": Lub zog ceev yog feem ntau 90-110 W / kg; qee lub roj teeb lithium hlau phosphate, xws li cov roj teeb hniav, muaj zog ceev txog li 120W / kg-140W / kg.
Cov ntsiab lus
Qhov zoo tshaj plaws ntawm "ternary lithium roj teeb" tshaj "lithium hlau phosphate" yog nws lub zog siab ceev thiab them ceev ceev.
3. Kev hloov pauv kub sib txawv:
Tsawg-kub tsis kam:
Ternary lithium roj teeb: Ternary lithium roj teeb muaj qhov ua tau zoo ntawm qhov kub thiab txias thiab tuaj yeem tswj tau li 70% ~ 80% ntawm cov roj teeb ib txwm muaj ntawm -20°C.
Lithium hlau phosphate: Tsis tiv taus qhov kub thiab txias: Thaum kub qis dua -10°C,
lithium hlau phosphate roj teeb lwj sai heev. Cov roj teeb lithium hlau phosphate tsuas tuaj yeem tswj tau li 50% mus rau 60% ntawm cov roj teeb li qub ntawm -20°C.
Cov ntsiab lus
Muaj qhov sib txawv loj hauv qhov kub thiab txias ntawm "ternary lithium roj teeb" thiab "lithium hlau phosphate"; "lithium hlau phosphate" yog resistant rau kub kub; thiab qhov kub-resistant "ternary lithium roj teeb" muaj cov roj teeb zoo dua nyob rau sab qaum teb lossis lub caij ntuj no.
4. Lub neej sib txawv:
Yog tias qhov seem muaj peev xwm / pib muaj peev xwm = 80% yog siv los ua qhov ntsuas qhov kawg, sim:
Cov roj teeb lithium hlau phosphate muaj lub neej voj voog ntev dua li cov roj teeb lead-acid thiab ternary lithium roj teeb. "Lub neej ntev tshaj" ntawm peb lub tsheb-mounted txhuas-acid roj teeb tsuas yog kwv yees li 300 zaug; Lub roj teeb ternary lithium tuaj yeem siv sijhawm ntev txog 2,000 zaug, tab sis hauv kev siv tiag tiag, lub peev xwm yuav lwj mus rau 60% tom qab kwv yees li 1,000 zaug; thiab lub neej tiag tiag ntawm lithium hlau phosphate roj teeb yog 2000 zaug, tseem muaj 95% muaj peev xwm nyob rau lub sijhawm no, thiab nws lub tswv yim lub neej mus txog ntau dua 3000 zaug.
Cov ntsiab lus
Cov roj teeb hluav taws xob yog cov thev naus laus zis ntawm cov roj teeb. Ob hom roj teeb lithium yog qhov ruaj khov. Raws li kev hais lus, lub neej ntev ntawm lub roj teeb lithium ternary yog 2,000 tus nqi thiab tawm mus. Txawm hais tias peb them nws ib zaug ib hnub, nws tuaj yeem kav ntev dua 5 xyoos.
5. Cov nqi sib txawv:
Txij li cov roj teeb lithium hlau phosphate tsis muaj cov khoom siv hlau zoo, tus nqi ntawm cov khoom siv raw tuaj yeem txo qis heev. Ternary lithium roj teeb siv lithium nickel cobalt manganate ua cov khoom zoo electrode thiab graphite raws li cov khoom tsis zoo electrode, yog li tus nqi kim dua lithium hlau phosphate roj teeb.
Lub roj teeb ternary lithium feem ntau siv cov khoom siv ternary cathode ntawm "lithium nickel cobalt manganate" lossis "lithium nickel cobalt aluminate" raws li cov electrode zoo, feem ntau yog siv nickel ntsev, cobalt ntsev, thiab manganese ntsev ua raw khoom. Cov "cobalt element" nyob rau hauv ob cov ntaub ntawv cathode no yog cov hlau muaj txiaj ntsig. Raws li cov ntaub ntawv los ntawm cov vev xaib cuam tshuam, tus nqi siv hluav taws xob hauv tsev ntawm cobalt hlau yog 413,000 yuan / tuj, thiab nrog kev txo cov khoom siv, tus nqi tseem nce ntxiv. Tam sim no, tus nqi ntawm ternary lithium roj teeb yog 0.85-1 yuan / wh, thiab tam sim no nce nrog kev lag luam xav tau; tus nqi ntawm lithium hlau phosphate roj teeb uas tsis muaj cov ntsiab lus hlau tseem ceeb tsuas yog kwv yees li 0.58-0.6 yuan / wh.
Cov ntsiab lus
Txij li thaum "lithium hlau phosphate" tsis muaj cov hlau zoo li cobalt, nws tus nqi tsuas yog 0.5-0.7 npaug ntawm cov roj teeb lithium ternary; tus nqi pheej yig yog qhov zoo dua ntawm lithium hlau phosphate.
Cov ntsiab lus
Yog vim li cas vim li cas lub tsheb fais fab tau vam meej nyob rau hauv xyoo tas los no thiab sawv cev rau yav tom ntej kev taw qhia ntawm kev loj hlob tsheb, muab cov neeg siv khoom muaj kev paub zoo dua, feem ntau yog vim muaj kev txhim kho txuas ntxiv ntawm lub zog roj teeb technology.
Post lub sij hawm: Oct-28-2023
