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